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Spiral Galaxy M83 in Hydra - Spiral galaxy M83 in Hydra - The galaxy M83 (NGC 5236) is located about 15 million light years away from Earth in the constellation Hydra. This galaxy is intermediate between a classic spiral and a barree spiral. Image obtained in 2006 and 2007 in several combined long poses, with a large amateur instrument, a 50 cm telescope. M83 (NGC 5236) is located in the southern constellation Hydra at 15 million light years from the sun. It is classified as intermediate between normal and barred spiral galaxies. The image was taken through a remote controlled 20 inch Ritchey - Chretien telescope using an eleven mega - pixel camera. Fourteen hour exposure between May and June of 2006 with additional exposures taken in April 2007 from over seven thousand feet above sea level in the mountains of south central New Mexico

Spiral Galaxy M83 in Hydra - Spiral galaxy M83 in Hydra - The galaxy M83 (NGC 5236) is located about 15 million light years away from Earth in the constellation Hydra. This galaxy is intermediate between a classic spiral and a barree spiral. Image obtained in 2006 and 2007 in several combined long poses, with a large amateur instrument, a 50 cm telescope. M83 (NGC 5236) is located in the southern constellation Hydra at 15 million light years from the sun. It is classified as intermediate between normal and barred spiral galaxies. The image was taken through a remote controlled 20 inch Ritchey - Chretien telescope using an eleven mega - pixel camera. Fourteen hour exposure between May and June of 2006 with additional exposures taken in April 2007 from over seven thousand feet above sea level in the mountains of south central New Mexico

R. Jay GaBany

PIX4612498

Spiral galaxy M33 in the Triangle - Spiral galaxy M33 in Triangulum - M33, (NGC 598), the galaxy of the Triangle, is located about 2 million years ago - light from Earth. It belongs to the local group, just like our galaxy or Andromede galaxy. In red, star-forming regions appear. Also known as M33 or NGC 598, the Triangulum Galaxy is part of the Local Group of galaxies, which includes the Andromeda Galaxy (M31) and our galaxy, the Milky Way. M33 is over thirty thousand light - years across, and more than two million light - years away. The optical data in this image show the many stars within the galaxy as well as reddish star forming regions that are filled with hot hydrogen gas. Hot, massive stars which recently formed in M33 give the galaxy its bluish color. The reddish areas are nebulae in the galaxy in which stars are rapidly forming

Spiral galaxy M33 in the Triangle - Spiral galaxy M33 in Triangulum - M33, (NGC 598), the galaxy of the Triangle, is located about 2 million years ago - light from Earth. It belongs to the local group, just like our galaxy or Andromede galaxy. In red, star-forming regions appear. Also known as M33 or NGC 598, the Triangulum Galaxy is part of the Local Group of galaxies, which includes the Andromeda Galaxy (M31) and our galaxy, the Milky Way. M33 is over thirty thousand light - years across, and more than two million light - years away. The optical data in this image show the many stars within the galaxy as well as reddish star forming regions that are filled with hot hydrogen gas. Hot, massive stars which recently formed in M33 give the galaxy its bluish color. The reddish areas are nebulae in the galaxy in which stars are rapidly forming

R. Gendler

PIX4609238

Spiral galaxy M74 in Pisces - Spiral galaxy M74 in Pisces - Image of the spiral galaxy M74 (NGC 628). This galaxy is about 80,000 light years and is 30 million light years apart. Viewed face on, as it appeared about 30 million years ago, M74 is considered to be one of the most photogenic spiral galaxies in the sky. The galaxy is rich in young bright blue stars and glowing red regions of dust and molecular hydrogen where new stars are being created. M74, however, is quite camera shy - it has a low surface brightness that makes it challenging for both visual observers and astrophotographers to see it's entire form. The Chandra X - Ray observatory, discovered M74 to be the home of a super massive black hole, tucked away in one of it's outer arms. This black hole is one of the largest ever discovered and has the mass of over 10,000 suns

Spiral galaxy M74 in Pisces - Spiral galaxy M74 in Pisces - Image of the spiral galaxy M74 (NGC 628). This galaxy is about 80,000 light years and is 30 million light years apart. Viewed face on, as it appeared about 30 million years ago, M74 is considered to be one of the most photogenic spiral galaxies in the sky. The galaxy is rich in young bright blue stars and glowing red regions of dust and molecular hydrogen where new stars are being created. M74, however, is quite camera shy - it has a low surface brightness that makes it challenging for both visual observers and astrophotographers to see it's entire form. The Chandra X - Ray observatory, discovered M74 to be the home of a super massive black hole, tucked away in one of it's outer arms. This black hole is one of the largest ever discovered and has the mass of over 10,000 suns

Adam Block

PIX4609424

Cephee Constellation - Constellation of Cepheus - At the bottom left, the constellation Cassiopee; at the top, the bright star is the polar star. Cepheus is a representation of King Cepheus of Ethiopia, who has stellar connections, being husband to Cassiopeia and the father of Andromeda. It is a large northern constellation of 588 square degrees, 27th out of 88 in size and is best seen in the early evening in November. It is distinguished by having two unusual stars that are easily seen. Delta Cephei is the prototype for an intrinsically bright class of regularly pulsating variable stars whose period of variability is closely related to their absolute magnitudes. The brightest stars have the longest period, so distance can be estimated by measuring the period and the apparent magnitude of a star. And these stars are bright, so the method can be extended to nearby galaxies. Mu (u) Cephei is an extremely red, irregular variable star easily seen in binoculars. This too is a prototype, of

Cephee Constellation - Constellation of Cepheus - At the bottom left, the constellation Cassiopee; at the top, the bright star is the polar star. Cepheus is a representation of King Cepheus of Ethiopia, who has stellar connections, being husband to Cassiopeia and the father of Andromeda. It is a large northern constellation of 588 square degrees, 27th out of 88 in size and is best seen in the early evening in November. It is distinguished by having two unusual stars that are easily seen. Delta Cephei is the prototype for an intrinsically bright class of regularly pulsating variable stars whose period of variability is closely related to their absolute magnitudes. The brightest stars have the longest period, so distance can be estimated by measuring the period and the apparent magnitude of a star. And these stars are bright, so the method can be extended to nearby galaxies. Mu (u) Cephei is an extremely red, irregular variable star easily seen in binoculars. This too is a prototype, of

PIX4589805

Wind emis by a Black Hole Supermassif - Artist view - Wind from Supermassive Black hole - Artist view - Wind artist's view emitted by a supermassive black hole in the center of a galaxy. These extremely strong winds could hinder star formation within the galaxy. Supermassive black holes at the cores of galaxies blast radiation and ultra-fast winds outward, as illustrated in this artist's conception. New data from NASA's Nuclear Spectroscopic Telescope Array (NuStar) and the European Space Agency's (ESA's) XMM-Newton telescopes show that these winds, which contain gases of highly ionized atoms, blow in a nearly spherical fashion, emanating in every direction, as shown in the artwork. The findings rule out the possibility that the winds blow in narrow beams. With the shape and extent of the winds known, the researchers were able to determine the winds' strength. The high-speed winds are powerful enough to shut down star formation throughout a galaxy

Wind emis by a Black Hole Supermassif - Artist view - Wind from Supermassive Black hole - Artist view - Wind artist's view emitted by a supermassive black hole in the center of a galaxy. These extremely strong winds could hinder star formation within the galaxy. Supermassive black holes at the cores of galaxies blast radiation and ultra-fast winds outward, as illustrated in this artist's conception. New data from NASA's Nuclear Spectroscopic Telescope Array (NuStar) and the European Space Agency's (ESA's) XMM-Newton telescopes show that these winds, which contain gases of highly ionized atoms, blow in a nearly spherical fashion, emanating in every direction, as shown in the artwork. The findings rule out the possibility that the winds blow in narrow beams. With the shape and extent of the winds known, the researchers were able to determine the winds' strength. The high-speed winds are powerful enough to shut down star formation throughout a galaxy

PIX4584576

Galaxy of the Wheel of the Charette in the Sculptor - The Cartwheel Galaxy - The ring galaxy of the Wheel of the Charette is about 500 million years away - light from Earth. It is surrounded by a ring of 150,000 years - light of diameter composed of young and very bright stars (detail at the top left). This particular form is the result of a collision, probably with one of the two galaxies on the right. Bottom left, close-up on the nucleus of the galaxy. Image obtained by the Hubble Space Telescope in October 1994. A rare and spectacular head - on collision between two galaxies appears in this NASA Hubble Space Telescope true - color image of the Cartwheel Galaxy, located 500 million light - years away in the constellation Sculptor. The details of star birth resolved by Hubble provide an opportunity to study how extremely massive stars are born in large fragmented gas clouds. The striking ring - like feature is a direct result of a smaller intruder galaxy - - possibly one of two object

Galaxy of the Wheel of the Charette in the Sculptor - The Cartwheel Galaxy - The ring galaxy of the Wheel of the Charette is about 500 million years away - light from Earth. It is surrounded by a ring of 150,000 years - light of diameter composed of young and very bright stars (detail at the top left). This particular form is the result of a collision, probably with one of the two galaxies on the right. Bottom left, close-up on the nucleus of the galaxy. Image obtained by the Hubble Space Telescope in October 1994. A rare and spectacular head - on collision between two galaxies appears in this NASA Hubble Space Telescope true - color image of the Cartwheel Galaxy, located 500 million light - years away in the constellation Sculptor. The details of star birth resolved by Hubble provide an opportunity to study how extremely massive stars are born in large fragmented gas clouds. The striking ring - like feature is a direct result of a smaller intruder galaxy - - possibly one of two object

PIX4613572

Centaurus A elliptical galaxy (NGC 5128) in the Centaurus - Galaxy Centaurus A (NGC 5128) - The galaxy NGC 5128 is located about 13 million years away from Earth. This Giant Galaxy is a powerful radio source known as Centaurus A. It is an active galaxy whose energy comes from a supermassive black hole. Image obtained from the 3.9m telescope of Siding Spring, Australia. Centaurus A is a most unusual galaxy. The circular, uniformly bright portion is composed of several thousand million stars, most of them old and yellowish. The galaxy is girded by a dense dust lane which obscures and reddens the light of stars behind it. Some younger, blue stars can be seen at the edges of the dust cloud. One of the nearer galaxies, 13 million light years away, Centaurus A is the most powerful nearby radio source and is also a copious source of X - and gamma rays as well as visible and infrared radiation

Centaurus A elliptical galaxy (NGC 5128) in the Centaurus - Galaxy Centaurus A (NGC 5128) - The galaxy NGC 5128 is located about 13 million years away from Earth. This Giant Galaxy is a powerful radio source known as Centaurus A. It is an active galaxy whose energy comes from a supermassive black hole. Image obtained from the 3.9m telescope of Siding Spring, Australia. Centaurus A is a most unusual galaxy. The circular, uniformly bright portion is composed of several thousand million stars, most of them old and yellowish. The galaxy is girded by a dense dust lane which obscures and reddens the light of stars behind it. Some younger, blue stars can be seen at the edges of the dust cloud. One of the nearer galaxies, 13 million light years away, Centaurus A is the most powerful nearby radio source and is also a copious source of X - and gamma rays as well as visible and infrared radiation

PIX4612201

Spiral galaxy NGC 5907 in the Dragon - Spiral galaxy NGC 5907 in Draco - The galaxy NGC 5907 is about 35 million years away - light from Earth. In this image, traces left by the passage of a dwarf galaxy appear as a stellar current around this galaxy. Here is an extragalactic perspective of an extended stellar tidal stream wrapping around the edge - on, spiral galaxy NGC 5907. Our deep images reveal for the first time a large scale complex of arcing loops that is an excellent example of how a low - mass satellite accretion can produce a interweaved, rosette - like structure of debris dispersed in the halo of its host galaxy. The existence of this structure, which has probably survived for several Gigayears, confirms that halos of spiral galaxies in the Local Universe still contain a significant number of galactic fossils from their hierarchical formation. This edge - on spiral galaxy is located at 35 million light years away

Spiral galaxy NGC 5907 in the Dragon - Spiral galaxy NGC 5907 in Draco - The galaxy NGC 5907 is about 35 million years away - light from Earth. In this image, traces left by the passage of a dwarf galaxy appear as a stellar current around this galaxy. Here is an extragalactic perspective of an extended stellar tidal stream wrapping around the edge - on, spiral galaxy NGC 5907. Our deep images reveal for the first time a large scale complex of arcing loops that is an excellent example of how a low - mass satellite accretion can produce a interweaved, rosette - like structure of debris dispersed in the halo of its host galaxy. The existence of this structure, which has probably survived for several Gigayears, confirms that halos of spiral galaxies in the Local Universe still contain a significant number of galactic fossils from their hierarchical formation. This edge - on spiral galaxy is located at 35 million light years away

R. Jay GaBany

PIX4612856

Spiral galaxy M33 in the Triangle - Spiral galaxy M33 in Triangulum - M33, (NGC 598), the galaxy of the Triangle, is located about 2 million years ago - light from Earth. It belongs to the local group, just like our galaxy or Andromede galaxy. In red the star-forming regions appear. Also known as M33 or NGC 598, the Triangulum Galaxy is part of the Local Group of galaxies, which includes the Andromeda Galaxy (M31) and our galaxy, the Milky Way. M33 is over thirty thousand light - years across, and more than two million light - years away. The data in this image show the many stars within the galaxy as well as reddish star forming regions that are filled with hot hydrogen gas. Hot, massive stars which recently formed in M33 give the galaxy its bluish color. The reddish areas are nebulae in the galaxy in which stars are rapidly forming

Spiral galaxy M33 in the Triangle - Spiral galaxy M33 in Triangulum - M33, (NGC 598), the galaxy of the Triangle, is located about 2 million years ago - light from Earth. It belongs to the local group, just like our galaxy or Andromede galaxy. In red the star-forming regions appear. Also known as M33 or NGC 598, the Triangulum Galaxy is part of the Local Group of galaxies, which includes the Andromeda Galaxy (M31) and our galaxy, the Milky Way. M33 is over thirty thousand light - years across, and more than two million light - years away. The data in this image show the many stars within the galaxy as well as reddish star forming regions that are filled with hot hydrogen gas. Hot, massive stars which recently formed in M33 give the galaxy its bluish color. The reddish areas are nebulae in the galaxy in which stars are rapidly forming

R. Gendler

PIX4609299

Cephee Constellation - Constellation of Cepheus - At the bottom left, the constellation Cassiopee; at the top, the bright star is the polar star. Cepheus is a representation of King Cepheus of Ethiopia, who has stellar connections, being husband to Cassiopeia and the father of Andromeda. It is a large northern constellation of 588 square degrees, 27th out of 88 in size and is best seen in the early evening in November. It is distinguished by having two unusual stars that are easily seen. Delta Cephei is the prototype for an intrinsically bright class of regularly pulsating variable stars whose period of variability is closely related to their absolute magnitudes. The brightest stars have the longest period, so distance can be estimated by measuring the period and the apparent magnitude of a star. And these stars are bright, so the method can be extended to nearby galaxies. Mu (u) Cephei is an extremely red, irregular variable star easily seen in binoculars. This too is a prototype, of

Cephee Constellation - Constellation of Cepheus - At the bottom left, the constellation Cassiopee; at the top, the bright star is the polar star. Cepheus is a representation of King Cepheus of Ethiopia, who has stellar connections, being husband to Cassiopeia and the father of Andromeda. It is a large northern constellation of 588 square degrees, 27th out of 88 in size and is best seen in the early evening in November. It is distinguished by having two unusual stars that are easily seen. Delta Cephei is the prototype for an intrinsically bright class of regularly pulsating variable stars whose period of variability is closely related to their absolute magnitudes. The brightest stars have the longest period, so distance can be estimated by measuring the period and the apparent magnitude of a star. And these stars are bright, so the method can be extended to nearby galaxies. Mu (u) Cephei is an extremely red, irregular variable star easily seen in binoculars. This too is a prototype, of

PIX4589796

Spiral Galaxy NGC 253 in Sculptor - Spiral galaxy NGC 253 in Sculptor - NGC 253 is the brightest galaxy of the Sculptor's group, the closest galaxy group to the Local Group. It is about 12 million light years away. NGC 253 is a spiral galaxy (about 12 million light years away), a member of a small group straggling across the southern constellation of Sculptor. It appears elongated because we see it almost edge - on. NGC 253 is a prototypical starburst galaxy.This galaxy is also one of the dustiest galaxies known and much of its internal detail is hidden by obscuring matter which can be seen as dark patches against the background stars. Despite the obscuration, two spiral arms and many bluish clusters of stars can be seen around the edge of the galaxy. NGC 253 is so close to us that some of the brightest stars are apparent as individuals within the spiral arms

Spiral Galaxy NGC 253 in Sculptor - Spiral galaxy NGC 253 in Sculptor - NGC 253 is the brightest galaxy of the Sculptor's group, the closest galaxy group to the Local Group. It is about 12 million light years away. NGC 253 is a spiral galaxy (about 12 million light years away), a member of a small group straggling across the southern constellation of Sculptor. It appears elongated because we see it almost edge - on. NGC 253 is a prototypical starburst galaxy.This galaxy is also one of the dustiest galaxies known and much of its internal detail is hidden by obscuring matter which can be seen as dark patches against the background stars. Despite the obscuration, two spiral arms and many bluish clusters of stars can be seen around the edge of the galaxy. NGC 253 is so close to us that some of the brightest stars are apparent as individuals within the spiral arms

R. Gendler

PIX4609066

Barree spiral galaxy NGC 4945 in Centaurus - Barred spiral galaxy NGC 4945 in Centaurus - The barree spiral galaxy NGC 4945 is located about 13 million years away - light from Earth. This image was obtained by Siding Spring's 3.9m telescope. This is one of many peculiar galaxies that populate the large southern constellation of Centaurus. This remarkable spiral galaxy seen almost edge - on, and the spiral structure is chaotic and difficult to discern. In part this is because the galaxy is itself extremely dusty, and it is seen through dust in the Milky Way. These effects together account for its yellowish hue, though patches of bluish stars can be seen. The dust in NGC 4945 absorbs most of the visible light, especially the blue light from the numerous bright stars known present within the galaxy. This energy is re - radiated at infrared wavelengths, which penetrate dust more readily, which is why the galaxy is found to be unusually bright in the infrared

Barree spiral galaxy NGC 4945 in Centaurus - Barred spiral galaxy NGC 4945 in Centaurus - The barree spiral galaxy NGC 4945 is located about 13 million years away - light from Earth. This image was obtained by Siding Spring's 3.9m telescope. This is one of many peculiar galaxies that populate the large southern constellation of Centaurus. This remarkable spiral galaxy seen almost edge - on, and the spiral structure is chaotic and difficult to discern. In part this is because the galaxy is itself extremely dusty, and it is seen through dust in the Milky Way. These effects together account for its yellowish hue, though patches of bluish stars can be seen. The dust in NGC 4945 absorbs most of the visible light, especially the blue light from the numerous bright stars known present within the galaxy. This energy is re - radiated at infrared wavelengths, which penetrate dust more readily, which is why the galaxy is found to be unusually bright in the infrared

PIX4612044

Spiral Galaxy M51 in Hunting Dogs - Spiral galaxy M51 in Canes Venatici - The spiral galaxy M51 (NGC 5194) is located about 31 million years ago - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. Image obtained by the Hubble Space Telescope in 2005. M51 (NGC 5194) is located 31 million light - years away in the constellation Canes Venatici (the Hunting Dogs). The Whirlpool's beautiful face - on view and closeness to Earth allow astronomers to study a classic spiral galaxy's structure and star - forming processes. This image of the Whirlpool Galaxy, taken in January 2005 with the Advanced Camera for Surveys aboard Nasa's Hubble Space Telescope, illustrates a spiral galaxy's grand design, from its curving spiral arms, where young stars reside, to its yellowish central core, a home of older stars. The galaxy is nicknamed the Whirlpool because of its swirling structure

Spiral Galaxy M51 in Hunting Dogs - Spiral galaxy M51 in Canes Venatici - The spiral galaxy M51 (NGC 5194) is located about 31 million years ago - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. Image obtained by the Hubble Space Telescope in 2005. M51 (NGC 5194) is located 31 million light - years away in the constellation Canes Venatici (the Hunting Dogs). The Whirlpool's beautiful face - on view and closeness to Earth allow astronomers to study a classic spiral galaxy's structure and star - forming processes. This image of the Whirlpool Galaxy, taken in January 2005 with the Advanced Camera for Surveys aboard Nasa's Hubble Space Telescope, illustrates a spiral galaxy's grand design, from its curving spiral arms, where young stars reside, to its yellowish central core, a home of older stars. The galaxy is nicknamed the Whirlpool because of its swirling structure

PIX4612337

Spiral galaxy NGC 300 in the Sculptor - Spiral galaxy NGC 300 in Sculptor - Located about 7 million years ago - light from Earth, the spiral galaxy NGC 300 belongs to the Sculptor's group. It appears to us as a great object in the sky since its apparent diameter is almost that of the full moon

Spiral galaxy NGC 300 in the Sculptor - Spiral galaxy NGC 300 in Sculptor - Located about 7 million years ago - light from Earth, the spiral galaxy NGC 300 belongs to the Sculptor's group. It appears to us as a great object in the sky since its apparent diameter is almost that of the full moon

PIX4609181

NGC 2521: Mysterious Galaxy, 2018 (digital photo)

NGC 2521: Mysterious Galaxy, 2018 (digital photo)

Mohr, Steven (21st century)

MMM7342751

Irregular Galaxy IC 5152 in the Indian - A nearby galaxy, IC 5152 - IC 5152 is an irregular galaxy located about 5.8 million years ago - light. In the foreground, a star in our galaxy of 8th magnitude. Image made in 1982 with the 3.9m telescope of Siding Spring. This small blue galaxy is resolved into stars in this deep AAT picture, which means that it is relatively nearby. However despite its proximity, it is probably just beyond the Local Group, which is a loose collection of 30 or so galaxies within 2 or 3 million light years of the Milky Way. Apart from the Milky Way and the similarly massive M31 galaxy in Andromeda, most of our immediate extra - galactic neighbours are light - weight collections of stars and gas like IC 5152, though few (except the Large Magellanic Cloud) show such strong evidence of recent star formation The bright object which appears at the eastern end of the galaxy is an 8th magnitude blue star in the Milky Way

Irregular Galaxy IC 5152 in the Indian - A nearby galaxy, IC 5152 - IC 5152 is an irregular galaxy located about 5.8 million years ago - light. In the foreground, a star in our galaxy of 8th magnitude. Image made in 1982 with the 3.9m telescope of Siding Spring. This small blue galaxy is resolved into stars in this deep AAT picture, which means that it is relatively nearby. However despite its proximity, it is probably just beyond the Local Group, which is a loose collection of 30 or so galaxies within 2 or 3 million light years of the Milky Way. Apart from the Milky Way and the similarly massive M31 galaxy in Andromeda, most of our immediate extra - galactic neighbours are light - weight collections of stars and gas like IC 5152, though few (except the Large Magellanic Cloud) show such strong evidence of recent star formation The bright object which appears at the eastern end of the galaxy is an 8th magnitude blue star in the Milky Way

PIX4613299

Spiral galaxy NGC 300 in the Sculptor - Spiral galaxy NGC 300 in Sculptor - Located about 7 million years ago - light from Earth, the spiral galaxy NGC 300 belongs to the Sculptor's group. It appears to us as a great object in the sky since its apparent diameter is almost that of the full moon

Spiral galaxy NGC 300 in the Sculptor - Spiral galaxy NGC 300 in Sculptor - Located about 7 million years ago - light from Earth, the spiral galaxy NGC 300 belongs to the Sculptor's group. It appears to us as a great object in the sky since its apparent diameter is almost that of the full moon

PIX4609175

Spiral galaxy M33 in the Triangle - Spiral galaxy M33 in Triangulum - M33, the galaxy of the Triangle is located about 2 million years from Earth. It belongs to the local group, just like our galaxy or Andromede galaxy. In red, star-forming regions appear. Image obtained from the Isaac Newton telescope of La Palma. M33 is a large, almost face - on spiral galaxy about 2.5 million light years distant in the northern constellation of Triangulum. It is a member of the 'Local Group' of galaxies, which is dominated by the Milky Way and M31. Like M31, M33 is approaching the Milky Way at a velocity of about 180km/s. Although the total light M33 galaxy is that of a star of magnitude 5.3, its large diameter makes it hard to see. However, despite its low surface brightness, this galaxy was among the first to be identified as a 'spiral nebula' by Lord Rosse in the 1840s. On shorter exposures, the nucleus appears very bright and almost stellar, like that in its southern cousin, NGC 300

Spiral galaxy M33 in the Triangle - Spiral galaxy M33 in Triangulum - M33, the galaxy of the Triangle is located about 2 million years from Earth. It belongs to the local group, just like our galaxy or Andromede galaxy. In red, star-forming regions appear. Image obtained from the Isaac Newton telescope of La Palma. M33 is a large, almost face - on spiral galaxy about 2.5 million light years distant in the northern constellation of Triangulum. It is a member of the 'Local Group' of galaxies, which is dominated by the Milky Way and M31. Like M31, M33 is approaching the Milky Way at a velocity of about 180km/s. Although the total light M33 galaxy is that of a star of magnitude 5.3, its large diameter makes it hard to see. However, despite its low surface brightness, this galaxy was among the first to be identified as a 'spiral nebula' by Lord Rosse in the 1840s. On shorter exposures, the nucleus appears very bright and almost stellar, like that in its southern cousin, NGC 300

PIX4609297

Spiral galaxy M74 in Pisces - Spiral galaxy M74 in Pisces - This galaxy measures about 80,000 years - light and is 30 million years away - light. Image obtained with a 50 cm telescope, composite of several poses. M74 is located roughly 30 million light - years away in the direction of the constellation Pisces, the Fish. It is the dominant member of a small group of about half a dozen galaxies, the M74 galaxy group. In its entirety, it is estimated that M74 is home to about 100 billion stars, making it slightly smaller than our Milky Way. Its perfectly symmetrical spiral arms emanate from the central nucleus and are dotted with clusters of young blue stars and glowing pink regions of ionized hydrogen (hydrogen atoms that have lost their electrons). These regions of star formation show an excess of light at ultraviolet wavelengths. Tracing along the spiral arms are winding dust lanes that also begin very near the galaxy's nucleus and follow along the length of the spiral arms

Spiral galaxy M74 in Pisces - Spiral galaxy M74 in Pisces - This galaxy measures about 80,000 years - light and is 30 million years away - light. Image obtained with a 50 cm telescope, composite of several poses. M74 is located roughly 30 million light - years away in the direction of the constellation Pisces, the Fish. It is the dominant member of a small group of about half a dozen galaxies, the M74 galaxy group. In its entirety, it is estimated that M74 is home to about 100 billion stars, making it slightly smaller than our Milky Way. Its perfectly symmetrical spiral arms emanate from the central nucleus and are dotted with clusters of young blue stars and glowing pink regions of ionized hydrogen (hydrogen atoms that have lost their electrons). These regions of star formation show an excess of light at ultraviolet wavelengths. Tracing along the spiral arms are winding dust lanes that also begin very near the galaxy's nucleus and follow along the length of the spiral arms

R. Jay GaBany

PIX4609387

Spiral galaxy NGC 6814 in the Eagle - Spiral Galaxy NGC 6814: NGC 6814 is a spiral galaxy located in the constellation Eagle. It is an active galaxy called Seyfert, which probably houses a black hole in its heart. Image obtained with the Hubble telescope - Spiral galaxy NGC 6814 seen by Hubble Space Telescope. NGC 6814 has an extremely bright nucleus, a telltale sign that the galaxy is a Seyfert galaxy. These galaxies have very active centres that can emit strong bursts of radiation. The luminous heart of NGC 6814 is a highly variable source of X-ray radiation, causing scientists to suspect that it hosts a supermassive black hole with a mass about 18 million times that of the Sun. As NGC 6814 is a very active galaxy, many regions of ionised gas are studded along its spiral arms. In these large clouds of gas, a burst of star formation has recently taken place, forging the brilliant blue stars that are visible scattered throughout the galaxy

Spiral galaxy NGC 6814 in the Eagle - Spiral Galaxy NGC 6814: NGC 6814 is a spiral galaxy located in the constellation Eagle. It is an active galaxy called Seyfert, which probably houses a black hole in its heart. Image obtained with the Hubble telescope - Spiral galaxy NGC 6814 seen by Hubble Space Telescope. NGC 6814 has an extremely bright nucleus, a telltale sign that the galaxy is a Seyfert galaxy. These galaxies have very active centres that can emit strong bursts of radiation. The luminous heart of NGC 6814 is a highly variable source of X-ray radiation, causing scientists to suspect that it hosts a supermassive black hole with a mass about 18 million times that of the Sun. As NGC 6814 is a very active galaxy, many regions of ionised gas are studded along its spiral arms. In these large clouds of gas, a burst of star formation has recently taken place, forging the brilliant blue stars that are visible scattered throughout the galaxy

PIX4613024

Black Holes in 3C75 - Black Holes in 3C75 - Composite X-ray image (blue) and radio (pink) of the active galaxy 3C 75. At the center of this very hot gas mass, two supermassive black holes separated by 25,000 years - light form a binary system of black holes (the two bright points). This composite X - ray/radio image of Abell 400 shows radio jets (pink), immersed in a vast cloud of multimillion degree X - ray emitting gas (blue) that pervades the cluster. The jets emanate from the vicinity of two supermassive black holes (bright spots in the image) in the galaxy. Chandra and radio data confirm that the unusual structure is due to the merger of two large galaxies, whose supermassive black holes are bound together by their mutual gravity. The swept - back appearance of the radio jets is produced by the rapid motion of the galaxy through the hot gas of the cluster, in much the same way that a motorcyclist's scarf is swept back while speeding down the road

Black Holes in 3C75 - Black Holes in 3C75 - Composite X-ray image (blue) and radio (pink) of the active galaxy 3C 75. At the center of this very hot gas mass, two supermassive black holes separated by 25,000 years - light form a binary system of black holes (the two bright points). This composite X - ray/radio image of Abell 400 shows radio jets (pink), immersed in a vast cloud of multimillion degree X - ray emitting gas (blue) that pervades the cluster. The jets emanate from the vicinity of two supermassive black holes (bright spots in the image) in the galaxy. Chandra and radio data confirm that the unusual structure is due to the merger of two large galaxies, whose supermassive black holes are bound together by their mutual gravity. The swept - back appearance of the radio jets is produced by the rapid motion of the galaxy through the hot gas of the cluster, in much the same way that a motorcyclist's scarf is swept back while speeding down the road

PIX4613531

Spiral galaxy NGC 6503 in the Dragon - Spiral galaxy NGC 6503 in Draco - The dwarf spiral galaxy NGC 6503 is located about 17 million years ago - light from Earth. It spans 30,000 light years and shows many star-forming regions. Image obtained by the Hubble Space Telescope. Fresh starbirth infuses the galaxy NGC 6503 with a vital pink glow in this image from the NASA/ESA Hubble Space Telescope. This galaxy, a smaller version of the Milky Way, is perched near a great void in space where few other galaxies reside. This new image from Hubble's Advanced Camera for Surveys displays, with particular clarity, the pink - colored puffs marking where stars have recently formed in NGC 6503's swirling spiral arms. Although structurally similar to the Milky Way, the disc of NGC 6503 spans just 30 000 light - years, or just about a third of the size of the Milky Way, leading astronomers to classify NGC 6503 as a dwarf spiral galaxy. NGC 6503 lies approximately 17 million light - years away in the co

Spiral galaxy NGC 6503 in the Dragon - Spiral galaxy NGC 6503 in Draco - The dwarf spiral galaxy NGC 6503 is located about 17 million years ago - light from Earth. It spans 30,000 light years and shows many star-forming regions. Image obtained by the Hubble Space Telescope. Fresh starbirth infuses the galaxy NGC 6503 with a vital pink glow in this image from the NASA/ESA Hubble Space Telescope. This galaxy, a smaller version of the Milky Way, is perched near a great void in space where few other galaxies reside. This new image from Hubble's Advanced Camera for Surveys displays, with particular clarity, the pink - colored puffs marking where stars have recently formed in NGC 6503's swirling spiral arms. Although structurally similar to the Milky Way, the disc of NGC 6503 spans just 30 000 light - years, or just about a third of the size of the Milky Way, leading astronomers to classify NGC 6503 as a dwarf spiral galaxy. NGC 6503 lies approximately 17 million light - years away in the co

PIX4612940

Eagle Nebula (IC 4703) and M16 star cluster in the Snake - Eagle nebula in Serpens - The Eagle Nebula is a cluster of massive young stars (M16) surrounded by clouds of gas and dust. The three columns in the center of the image were sculpted by the intense radiation emitted by these massive stars. Stars will be born in these clouds if they survive the intense radiation that erodes these pillars. Messier 16 is a cluster of young stars which formed about 2 million years ago from the gas and dust which still surrounds them. Brilliant blue stars of this type are much hotter than the Sun and can be up to thirty times more massive. The dark intrusions visible across the face of the nebula are condensations of dusty material which might one day collapse into yet more stars, should they survive the radiation from the bright stars, which is gradually etching them away. Bright red regions of photo - ionised hydrogen such as M16 are usually found in the spiral arms of galaxies and are often associ

Eagle Nebula (IC 4703) and M16 star cluster in the Snake - Eagle nebula in Serpens - The Eagle Nebula is a cluster of massive young stars (M16) surrounded by clouds of gas and dust. The three columns in the center of the image were sculpted by the intense radiation emitted by these massive stars. Stars will be born in these clouds if they survive the intense radiation that erodes these pillars. Messier 16 is a cluster of young stars which formed about 2 million years ago from the gas and dust which still surrounds them. Brilliant blue stars of this type are much hotter than the Sun and can be up to thirty times more massive. The dark intrusions visible across the face of the nebula are condensations of dusty material which might one day collapse into yet more stars, should they survive the radiation from the bright stars, which is gradually etching them away. Bright red regions of photo - ionised hydrogen such as M16 are usually found in the spiral arms of galaxies and are often associ

PIX4620028

Nebulae IC 1848 and IC 1805 in Cassiopee - The north is at top. IC1848 nebula and the star cluster embedded in it are located just 4 degrees north of h Persei, one of the two members of the famous Double Cluster. The same nebula also hosts Collinder 33 (Cr33) and Collinder 34 (Cr34) star clusters. The faint nebulae IC1871 and Sh2 - 198 are just near the IC1848. Just one and a half degree north - west from IC1848 is located the IC1805 complex. This rich but faint nebular complex resides 5* NNE of the Double Cluster in Perseus. The largest and very diffuse part of it, IC1805, contains large and bright star cluster Melotte 15 at its center. Other star clusters (NGC1027, Berkeley 65 and Markarian 6) are located around its edges. The brightest part of IC1805 complex consists of nebulae IC1795 and NGC896 which together are intersected by narrow NW to SE streaks of dust. Also the two Maffei galaxies are included in this view at bottom center. This image is based on data acquired by the Oschin

Nebulae IC 1848 and IC 1805 in Cassiopee - The north is at top. IC1848 nebula and the star cluster embedded in it are located just 4 degrees north of h Persei, one of the two members of the famous Double Cluster. The same nebula also hosts Collinder 33 (Cr33) and Collinder 34 (Cr34) star clusters. The faint nebulae IC1871 and Sh2 - 198 are just near the IC1848. Just one and a half degree north - west from IC1848 is located the IC1805 complex. This rich but faint nebular complex resides 5* NNE of the Double Cluster in Perseus. The largest and very diffuse part of it, IC1805, contains large and bright star cluster Melotte 15 at its center. Other star clusters (NGC1027, Berkeley 65 and Markarian 6) are located around its edges. The brightest part of IC1805 complex consists of nebulae IC1795 and NGC896 which together are intersected by narrow NW to SE streaks of dust. Also the two Maffei galaxies are included in this view at bottom center. This image is based on data acquired by the Oschin

D. De Martin

PIX4622341

Spiral Galaxy NGC 253 in Sculptor - Spiral galaxy NGC 253 in Sculptor - NGC 253 is the brightest galaxy of the Sculptor's group, the closest galaxy group to the Local Group. It is about 12 million light years away. Image made with the 1.5m Danish telescope of La Silla in Chile in 2009. NGC 253 is a spiral galaxy (about 12 million light years away), a member of a small group straggling across the southern constellation of Sculptor. It appears elongated because we see it almost edge - on. NGC 253 is a prototypical starburst galaxy.This galaxy is also one of the dustiest galaxies known and much of its internal detail is hidden by obscuring matter which can be seen as dark patches against the background stars. Despite the obscuration, two spiral arms and many bluish clusters of stars can be seen around the edge of the galaxy. NGC 253 is so close to us that some of the brightest stars are apparent as individuals within the spiral arms. Image taken with the ESO/Danish 1.5m telescope at La Si

Spiral Galaxy NGC 253 in Sculptor - Spiral galaxy NGC 253 in Sculptor - NGC 253 is the brightest galaxy of the Sculptor's group, the closest galaxy group to the Local Group. It is about 12 million light years away. Image made with the 1.5m Danish telescope of La Silla in Chile in 2009. NGC 253 is a spiral galaxy (about 12 million light years away), a member of a small group straggling across the southern constellation of Sculptor. It appears elongated because we see it almost edge - on. NGC 253 is a prototypical starburst galaxy.This galaxy is also one of the dustiest galaxies known and much of its internal detail is hidden by obscuring matter which can be seen as dark patches against the background stars. Despite the obscuration, two spiral arms and many bluish clusters of stars can be seen around the edge of the galaxy. NGC 253 is so close to us that some of the brightest stars are apparent as individuals within the spiral arms. Image taken with the ESO/Danish 1.5m telescope at La Si

PIX4609096

Spiral galaxy NGC 300 in the Sculptor - Galaxy NGC 300 in Sculptor - Located about 7 million years ago - light from Earth, the spiral galaxy NGC 300 belongs to the Sculptor's group. It appears to us as a great object in the sky since its apparent diameter is almost that of the full moon. This photo made by the Hubble space telesope in 2002 shows the central part of the galaxy and reveals myriad stars. NGC 300 is a spiral galaxy similar to our own Milky Way galaxy. It is a member of a nearby group of galaxies known as the Sculptor group, named for the southern constellation where the group can be found. The distance to NGC 300 is 6.5 million light - years, making it one of the Milky Way's closer neighbors. At this distance, only the brightest stars can be picked out from ground - based images. With a resolution some 10 times better than ground - based telescopes, Hubble's Advanced Camera for Surveys (ACS) resolves many more stars in this galaxy than can be detected from the ground

Spiral galaxy NGC 300 in the Sculptor - Galaxy NGC 300 in Sculptor - Located about 7 million years ago - light from Earth, the spiral galaxy NGC 300 belongs to the Sculptor's group. It appears to us as a great object in the sky since its apparent diameter is almost that of the full moon. This photo made by the Hubble space telesope in 2002 shows the central part of the galaxy and reveals myriad stars. NGC 300 is a spiral galaxy similar to our own Milky Way galaxy. It is a member of a nearby group of galaxies known as the Sculptor group, named for the southern constellation where the group can be found. The distance to NGC 300 is 6.5 million light - years, making it one of the Milky Way's closer neighbors. At this distance, only the brightest stars can be picked out from ground - based images. With a resolution some 10 times better than ground - based telescopes, Hubble's Advanced Camera for Surveys (ACS) resolves many more stars in this galaxy than can be detected from the ground

PIX4609146

Mirror of the Herschel satellite - Herschel spacecraft's mirror - Inspection of the mirror of the European Herschel satellite. The Herschel Space Observatory, scheduled to launch in 2009, will study in the infrared the formation of galaxies, stars and planetary systems. This satellite measures nearly 7 metres high by 4.3 metres wide and weighs 3.25 tonnes. Its telescope has a 3.5-meter mirror, making it the largest mirror ever made for a scientific space mission. Herschel will orbit around Lagrange 2, approximately 1.5 million kilometres from Earth. The gigantic telescope of ESA's space - based infrared observatory, Herschel, is being prepared to be assembled with its spacecraft. Herschel's telescope, which will carry the largest mirror ever flown in space, has been delivered to ESA's European Space Research and Technology Centre, ESTEC, where engineers and scientists are busy with the final steps that will prepare the infrared observatory for launch in 2009. ESA's Herschel Space Obser

Mirror of the Herschel satellite - Herschel spacecraft's mirror - Inspection of the mirror of the European Herschel satellite. The Herschel Space Observatory, scheduled to launch in 2009, will study in the infrared the formation of galaxies, stars and planetary systems. This satellite measures nearly 7 metres high by 4.3 metres wide and weighs 3.25 tonnes. Its telescope has a 3.5-meter mirror, making it the largest mirror ever made for a scientific space mission. Herschel will orbit around Lagrange 2, approximately 1.5 million kilometres from Earth. The gigantic telescope of ESA's space - based infrared observatory, Herschel, is being prepared to be assembled with its spacecraft. Herschel's telescope, which will carry the largest mirror ever flown in space, has been delivered to ESA's European Space Research and Technology Centre, ESTEC, where engineers and scientists are busy with the final steps that will prepare the infrared observatory for launch in 2009. ESA's Herschel Space Obser

P. Dumas

PIX4646082

Pegase Constellation - Constellation of Pegasus - Pegasus represents a winged horse of Greek mythology, a figure that appears quite often, most spectacularly as the great winged steed of Bellerophon. The word Pegasus itself is derived from the Greek meaning 'strong'. Pegasus was the son of Neptune and Medusa the Gorgon, and sprang from the blood of his mother when her head had been severed by Perseus. Because Pegasus was considered a mortal, when he died he was placed in the heavens as a constellation by Zeus. Adjoining Pegasus is Equuleus, the foal. The most distinctive part of constellation is the Great Square of Pegasus. Its northernmost star, Sirrah, was incorparated into Andromeda when the constellation boundaries were formalized in the 1930s; it used to be delta (d) Pegasi. Because of its position in the sky, the first two objects in the New General Catalogue (NGC) appear in the Pegasus. NGC 1 and NGC 2 are distant, unremarkable galaxies, indeed this large constellation as a whol

Pegase Constellation - Constellation of Pegasus - Pegasus represents a winged horse of Greek mythology, a figure that appears quite often, most spectacularly as the great winged steed of Bellerophon. The word Pegasus itself is derived from the Greek meaning 'strong'. Pegasus was the son of Neptune and Medusa the Gorgon, and sprang from the blood of his mother when her head had been severed by Perseus. Because Pegasus was considered a mortal, when he died he was placed in the heavens as a constellation by Zeus. Adjoining Pegasus is Equuleus, the foal. The most distinctive part of constellation is the Great Square of Pegasus. Its northernmost star, Sirrah, was incorparated into Andromeda when the constellation boundaries were formalized in the 1930s; it used to be delta (d) Pegasi. Because of its position in the sky, the first two objects in the New General Catalogue (NGC) appear in the Pegasus. NGC 1 and NGC 2 are distant, unremarkable galaxies, indeed this large constellation as a whol

PIX4593125

Eagle Nebula (IC 4703) and M16 star cluster in the Snake - The Eagle nebula in Serpens - The M16 star cluster is a cluster of young stars distant from 7000 years - light, formed about 2 million years ago in the Eagle nebula, IC 4703. These stars are much warmer than the Sun and can be 30 times more massive. Messier 16 is a cluster of young stars which formed about 2 million years ago from the gas and dust which still surrounds them. Brilliant blue stars of this type are much hotter than the Sun and can be up to thirty times more massive. The dark intrusions visible across the face of the nebula are condensations of dusty material which might one day collapse into yet more stars, should they survive the radiation from the bright stars, which is gradually etching them away. Bright red regions of photo - ionised hydrogen such as M16 are usually found in the spiral arms of galaxies and are often associated recent star formation. This example is about 7000 light years distant

Eagle Nebula (IC 4703) and M16 star cluster in the Snake - The Eagle nebula in Serpens - The M16 star cluster is a cluster of young stars distant from 7000 years - light, formed about 2 million years ago in the Eagle nebula, IC 4703. These stars are much warmer than the Sun and can be 30 times more massive. Messier 16 is a cluster of young stars which formed about 2 million years ago from the gas and dust which still surrounds them. Brilliant blue stars of this type are much hotter than the Sun and can be up to thirty times more massive. The dark intrusions visible across the face of the nebula are condensations of dusty material which might one day collapse into yet more stars, should they survive the radiation from the bright stars, which is gradually etching them away. Bright red regions of photo - ionised hydrogen such as M16 are usually found in the spiral arms of galaxies and are often associated recent star formation. This example is about 7000 light years distant

R. Gendler

PIX4620019

Mirror of the Herschel satellite - Herschel spacecraft's mirror - Inspection of the mirror of the European Herschel satellite. The Herschel Space Observatory, scheduled to launch in 2009, will study in the infrared the formation of galaxies, stars and planetary systems. This satellite measures nearly 7 metres high by 4.3 metres wide and weighs 3.25 tonnes. Its telescope has a 3.5-meter mirror, making it the largest mirror ever made for a scientific space mission. Herschel will orbit around Lagrange 2, approximately 1.5 million kilometres from Earth. The gigantic telescope of ESA's space - based infrared observatory, Herschel, is being prepared to be assembled with its spacecraft. Herschel's telescope, which will carry the largest mirror ever flown in space, has been delivered to ESA's European Space Research and Technology Centre, ESTEC, where engineers and scientists are busy with the final steps that will prepare the infrared observatory for launch in 2009. ESA's Herschel Space Obser

Mirror of the Herschel satellite - Herschel spacecraft's mirror - Inspection of the mirror of the European Herschel satellite. The Herschel Space Observatory, scheduled to launch in 2009, will study in the infrared the formation of galaxies, stars and planetary systems. This satellite measures nearly 7 metres high by 4.3 metres wide and weighs 3.25 tonnes. Its telescope has a 3.5-meter mirror, making it the largest mirror ever made for a scientific space mission. Herschel will orbit around Lagrange 2, approximately 1.5 million kilometres from Earth. The gigantic telescope of ESA's space - based infrared observatory, Herschel, is being prepared to be assembled with its spacecraft. Herschel's telescope, which will carry the largest mirror ever flown in space, has been delivered to ESA's European Space Research and Technology Centre, ESTEC, where engineers and scientists are busy with the final steps that will prepare the infrared observatory for launch in 2009. ESA's Herschel Space Obser

P. Dumas

PIX4646096

Galaxy NGC 4027 in the Raven - Galaxy NGC 4027 in Corvus - NGC 4027 is a spiral galaxy located about 80 million years ago - light. One of his arms is more extended, probably by the presence of a nearby dwarf galaxy. Image made with Siding Spring's 3.9m telescope. This galaxy is of interest because of its similarity to the Large Magellanic Cloud, (LMC) our nearest extra - galactic neighbour. Like the LMC, its light comes predominantly from young stars, which are hotter than the Sun and give the galaxy a bluish colour. However, because this galaxy is over 80 million light - years distant we see only the integrated light of millions of unresolved stars, rather than the individuals we see in the LMC. NGC 4027 has a somewhat distorted appearance and an elongated spiral arm, probably due to the gravitational effect of a smaller companion galaxy, not visible in this photograph but rather obvious on a much deeper image. NGC 4027 is less than half a degree south of the Antennae interacting gala

Galaxy NGC 4027 in the Raven - Galaxy NGC 4027 in Corvus - NGC 4027 is a spiral galaxy located about 80 million years ago - light. One of his arms is more extended, probably by the presence of a nearby dwarf galaxy. Image made with Siding Spring's 3.9m telescope. This galaxy is of interest because of its similarity to the Large Magellanic Cloud, (LMC) our nearest extra - galactic neighbour. Like the LMC, its light comes predominantly from young stars, which are hotter than the Sun and give the galaxy a bluish colour. However, because this galaxy is over 80 million light - years distant we see only the integrated light of millions of unresolved stars, rather than the individuals we see in the LMC. NGC 4027 has a somewhat distorted appearance and an elongated spiral arm, probably due to the gravitational effect of a smaller companion galaxy, not visible in this photograph but rather obvious on a much deeper image. NGC 4027 is less than half a degree south of the Antennae interacting gala

PIX4611054

Eagle Nebula (IC 4703) and M16 star cluster in the Snake - Eagle nebula in Serpens - The Eagle Nebula is a cluster of massive young stars (M16) surrounded by clouds of gas and dust. The three columns in the center of the image were sculpted by the intense radiation emitted by these massive stars. Stars will be born in these clouds if they survive the intense radiation that erodes these pillars. Messier 16 is a cluster of young stars which formed about 2 million years ago from the gas and dust which still surrounds them. Brilliant blue stars of this type are much hotter than the Sun and can be up to thirty times more massive. The dark intrusions visible across the face of the nebula are condensations of dusty material which might one day collapse into yet more stars, should they survive the radiation from the bright stars, which is gradually etching them away. Bright red regions of photo - ionised hydrogen such as M16 are usually found in the spiral arms of galaxies and are often associ

Eagle Nebula (IC 4703) and M16 star cluster in the Snake - Eagle nebula in Serpens - The Eagle Nebula is a cluster of massive young stars (M16) surrounded by clouds of gas and dust. The three columns in the center of the image were sculpted by the intense radiation emitted by these massive stars. Stars will be born in these clouds if they survive the intense radiation that erodes these pillars. Messier 16 is a cluster of young stars which formed about 2 million years ago from the gas and dust which still surrounds them. Brilliant blue stars of this type are much hotter than the Sun and can be up to thirty times more massive. The dark intrusions visible across the face of the nebula are condensations of dusty material which might one day collapse into yet more stars, should they survive the radiation from the bright stars, which is gradually etching them away. Bright red regions of photo - ionised hydrogen such as M16 are usually found in the spiral arms of galaxies and are often associ

PIX4619956

Mirror of the Herschel satellite - Herschel spacecraft's mirror - Inspection of the mirror of the European Herschel satellite. The Herschel Space Observatory, scheduled to launch in 2009, will study in the infrared the formation of galaxies, stars and planetary systems. This satellite measures nearly 7 metres high by 4.3 metres wide and weighs 3.25 tonnes. Its telescope has a 3.5-meter mirror, making it the largest mirror ever made for a scientific space mission. Herschel will orbit around Lagrange 2, approximately 1.5 million kilometres from Earth. The gigantic telescope of ESA's space - based infrared observatory, Herschel, is being prepared to be assembled with its spacecraft. Herschel's telescope, which will carry the largest mirror ever flown in space, has been delivered to ESA's European Space Research and Technology Centre, ESTEC, where engineers and scientists are busy with the final steps that will prepare the infrared observatory for launch in 2009. ESA's Herschel Space Obser

Mirror of the Herschel satellite - Herschel spacecraft's mirror - Inspection of the mirror of the European Herschel satellite. The Herschel Space Observatory, scheduled to launch in 2009, will study in the infrared the formation of galaxies, stars and planetary systems. This satellite measures nearly 7 metres high by 4.3 metres wide and weighs 3.25 tonnes. Its telescope has a 3.5-meter mirror, making it the largest mirror ever made for a scientific space mission. Herschel will orbit around Lagrange 2, approximately 1.5 million kilometres from Earth. The gigantic telescope of ESA's space - based infrared observatory, Herschel, is being prepared to be assembled with its spacecraft. Herschel's telescope, which will carry the largest mirror ever flown in space, has been delivered to ESA's European Space Research and Technology Centre, ESTEC, where engineers and scientists are busy with the final steps that will prepare the infrared observatory for launch in 2009. ESA's Herschel Space Obser

P. Dumas

PIX4646089

Planetary nebula Helix (NGC 7293), located in Aquarius, is one of the closest to Earth (c. 690 light years) Image by the 2.2m Max Planck Society/ESO/MPG telescope of the La Silla Observatory in Chile.

Planetary nebula Helix (NGC 7293), located in Aquarius, is one of the closest to Earth (c. 690 light years) Image by the 2.2m Max Planck Society/ESO/MPG telescope of the La Silla Observatory in Chile.

PIX4623684

Panorama of the Milky Way - Panorama of the Milky Way - Photographic mosaic reconstructing the entire lactee path. The shots taken between summer 2008 and summer 2009 were taken from two perfect astronomical sites, the Atacama desert for the southern hemisphere, the Caldera de Taburiente in the Canary Islands for the boreal hemisphere. This magnificent 360-degree panoramic image, covering the entire southern and northern celestial sphere, reveals the cosmic landscape that surrounds our tiny blue planet. The plane of our Milky Way Galaxy, which we see edge-on from our perspective on Earth, cuts a luminous swath across the image. From this vantage point, the general components of our spiral galaxy come clearly into view, including its disc, marbled with both dark and glowing nebulae, which harbours bright, young stars, as well as the Galaxy's central bulge and its satellite galaxies. As filming extended over several months, objects from the Solar System came and went through the star fie

Panorama of the Milky Way - Panorama of the Milky Way - Photographic mosaic reconstructing the entire lactee path. The shots taken between summer 2008 and summer 2009 were taken from two perfect astronomical sites, the Atacama desert for the southern hemisphere, the Caldera de Taburiente in the Canary Islands for the boreal hemisphere. This magnificent 360-degree panoramic image, covering the entire southern and northern celestial sphere, reveals the cosmic landscape that surrounds our tiny blue planet. The plane of our Milky Way Galaxy, which we see edge-on from our perspective on Earth, cuts a luminous swath across the image. From this vantage point, the general components of our spiral galaxy come clearly into view, including its disc, marbled with both dark and glowing nebulae, which harbours bright, young stars, as well as the Galaxy's central bulge and its satellite galaxies. As filming extended over several months, objects from the Solar System came and went through the star fie

Serge Brunier

PIX4637908

Pegase Constellation - Constellation of Pegasus - Pegasus represents a winged horse of Greek mythology, a figure that appears quite often, most spectacularly as the great winged steed of Bellerophon. The word Pegasus itself is derived from the Greek meaning 'strong'. Pegasus was the son of Neptune and Medusa the Gorgon, and sprang from the blood of his mother when her head had been severed by Perseus. Because Pegasus was considered a mortal, when he died he was placed in the heavens as a constellation by Zeus. Adjoining Pegasus is Equuleus, the foal. The most distinctive part of constellation is the Great Square of Pegasus. Its northernmost star, Sirrah, was incorparated into Andromeda when the constellation boundaries were formalized in the 1930s; it used to be delta (d) Pegasi. Because of its position in the sky, the first two objects in the New General Catalogue (NGC) appear in the Pegasus. NGC 1 and NGC 2 are distant, unremarkable galaxies, indeed this large constellation as a whol

Pegase Constellation - Constellation of Pegasus - Pegasus represents a winged horse of Greek mythology, a figure that appears quite often, most spectacularly as the great winged steed of Bellerophon. The word Pegasus itself is derived from the Greek meaning 'strong'. Pegasus was the son of Neptune and Medusa the Gorgon, and sprang from the blood of his mother when her head had been severed by Perseus. Because Pegasus was considered a mortal, when he died he was placed in the heavens as a constellation by Zeus. Adjoining Pegasus is Equuleus, the foal. The most distinctive part of constellation is the Great Square of Pegasus. Its northernmost star, Sirrah, was incorparated into Andromeda when the constellation boundaries were formalized in the 1930s; it used to be delta (d) Pegasi. Because of its position in the sky, the first two objects in the New General Catalogue (NGC) appear in the Pegasus. NGC 1 and NGC 2 are distant, unremarkable galaxies, indeed this large constellation as a whol

PIX4593156

Mirror of the Herschel satellite - Herschel spacecraft's mirror - Inspection of the mirror of the European Herschel satellite. The Herschel Space Observatory, scheduled to launch in 2009, will study in the infrared the formation of galaxies, stars and planetary systems. This satellite measures nearly 7 metres high by 4.3 metres wide and weighs 3.25 tonnes. Its telescope has a 3.5-meter mirror, making it the largest mirror ever made for a scientific space mission. Herschel will orbit around Lagrange 2, approximately 1.5 million kilometres from Earth. The gigantic telescope of ESA's space - based infrared observatory, Herschel, is being prepared to be assembled with its spacecraft. Herschel's telescope, which will carry the largest mirror ever flown in space, has been delivered to ESA's European Space Research and Technology Centre, ESTEC, where engineers and scientists are busy with the final steps that will prepare the infrared observatory for launch in 2009. ESA's Herschel Space Obser

Mirror of the Herschel satellite - Herschel spacecraft's mirror - Inspection of the mirror of the European Herschel satellite. The Herschel Space Observatory, scheduled to launch in 2009, will study in the infrared the formation of galaxies, stars and planetary systems. This satellite measures nearly 7 metres high by 4.3 metres wide and weighs 3.25 tonnes. Its telescope has a 3.5-meter mirror, making it the largest mirror ever made for a scientific space mission. Herschel will orbit around Lagrange 2, approximately 1.5 million kilometres from Earth. The gigantic telescope of ESA's space - based infrared observatory, Herschel, is being prepared to be assembled with its spacecraft. Herschel's telescope, which will carry the largest mirror ever flown in space, has been delivered to ESA's European Space Research and Technology Centre, ESTEC, where engineers and scientists are busy with the final steps that will prepare the infrared observatory for launch in 2009. ESA's Herschel Space Obser

P. Dumas

PIX4646076

Jet from the elliptical galaxy M87 by Hubble - Jet in the elliptical galaxy M87 - The galaxy M87 (NGC 4486) is located about 60 million years ago - light from Earth, in the heart of the Virgin's cluster. This image obtained by the Hubble space telescope in February 1998 shows a gigantic jet of gas material ejected from the heart of the galaxy. A supermassive black hole would have caused this jet. M87 is the brightest radio source of the constellation, it is also called Virgo A. M87 (also known as NGC 4486) is a giant elliptical galaxy; one of many ellipticals in the nearby Virgo cluster of galaxies. In the 1950s when the field of radio was blossoming, one of the brightest radio sources in the sky, Virgo A, was discovered to be associated with M87 and its jet. <BR>After decades of study, prompted by these discoveries, the source of this incredible amount of energy powering the jet has become clear. Lying at the center of M87 is a supermassive black hole, which has swallowed up a mass eq

Jet from the elliptical galaxy M87 by Hubble - Jet in the elliptical galaxy M87 - The galaxy M87 (NGC 4486) is located about 60 million years ago - light from Earth, in the heart of the Virgin's cluster. This image obtained by the Hubble space telescope in February 1998 shows a gigantic jet of gas material ejected from the heart of the galaxy. A supermassive black hole would have caused this jet. M87 is the brightest radio source of the constellation, it is also called Virgo A. M87 (also known as NGC 4486) is a giant elliptical galaxy; one of many ellipticals in the nearby Virgo cluster of galaxies. In the 1950s when the field of radio was blossoming, one of the brightest radio sources in the sky, Virgo A, was discovered to be associated with M87 and its jet. <BR>After decades of study, prompted by these discoveries, the source of this incredible amount of energy powering the jet has become clear. Lying at the center of M87 is a supermassive black hole, which has swallowed up a mass eq

PIX4611395

Fireworks Galaxy NGC6939-SN 2017EAW, 2017 (digital photo)

Fireworks Galaxy NGC6939-SN 2017EAW, 2017 (digital photo)

González, César Blanco (21st century)

MMM7339135

M87 elliptical galaxy in Virgo - M87 elliptical galaxy in Virgo - The M87 galaxy (NGC 4486) is located about 60 million years ago - light from Earth, in the heart of the Virgin's cluster. M87 is the brightest radio source in the constellation, it is also called Virgo A. Image made with Siding Spring's 3.9m telescope. Messier 87 (NGC 4486) is at the heart of the Virgo cluster and has a mass many times that of the Milky Way, itself no lightweight. Unlike our galaxy however, M87 is an elliptical galaxy. Though it appears more - or - less spherical on this photograph, a deep image shows it to be markedly elongated. Also unlike the Milky Way, M87 contains relatively little gas and dust. It is composed mainly of cool stars, which gives it a yellowish colour, in contrast to the blue of spiral galaxies. Despite the lack of star - forming materials, M87 is not a quiescent backwater. It is a powerful source of radio waves and the orbits of stars near its nucleus suggest they are held by a very m

M87 elliptical galaxy in Virgo - M87 elliptical galaxy in Virgo - The M87 galaxy (NGC 4486) is located about 60 million years ago - light from Earth, in the heart of the Virgin's cluster. M87 is the brightest radio source in the constellation, it is also called Virgo A. Image made with Siding Spring's 3.9m telescope. Messier 87 (NGC 4486) is at the heart of the Virgo cluster and has a mass many times that of the Milky Way, itself no lightweight. Unlike our galaxy however, M87 is an elliptical galaxy. Though it appears more - or - less spherical on this photograph, a deep image shows it to be markedly elongated. Also unlike the Milky Way, M87 contains relatively little gas and dust. It is composed mainly of cool stars, which gives it a yellowish colour, in contrast to the blue of spiral galaxies. Despite the lack of star - forming materials, M87 is not a quiescent backwater. It is a powerful source of radio waves and the orbits of stars near its nucleus suggest they are held by a very m

PIX4611429

Towards the Small Magellanic Cloud, 2015 (digital photo)

Towards the Small Magellanic Cloud, 2015 (digital photo)

Bobillo, Ignacio Diaz (20th-21st century)

MMM7340387

Open cluster M11 in the ECU of Sobieski - M11 open cluster in Scutum - M11 (NGC 6705) is a cluster of about 3000 stars. Image obtained by Siding Spring Clusters of bright blue stars like M11 are found scattered among the spiral arms of the Milky Way and other galaxies like it. They are a clear sign that star formation is active, because such clusters are usually very young and short lived. The stars in M11 all formed from the same material and at about the same time, a few million years ago. In 100 million years or so, all the brightest stars in the group will have evolved into cool supergiants and exploded as supernovae, leaving behind large numbers of low mass, relatively faint stars whose lives will be much longer and whose end will be much less dramatic. Located in the constellation of Scutum, it is sometimes mistaken for a loose globular cluster. M11 is also called the “” Wild Duck Cluster”” because of it's resemblance to a flight of wild ducks when viewed in a telescope. M11, wit

Open cluster M11 in the ECU of Sobieski - M11 open cluster in Scutum - M11 (NGC 6705) is a cluster of about 3000 stars. Image obtained by Siding Spring Clusters of bright blue stars like M11 are found scattered among the spiral arms of the Milky Way and other galaxies like it. They are a clear sign that star formation is active, because such clusters are usually very young and short lived. The stars in M11 all formed from the same material and at about the same time, a few million years ago. In 100 million years or so, all the brightest stars in the group will have evolved into cool supergiants and exploded as supernovae, leaving behind large numbers of low mass, relatively faint stars whose lives will be much longer and whose end will be much less dramatic. Located in the constellation of Scutum, it is sometimes mistaken for a loose globular cluster. M11 is also called the “” Wild Duck Cluster”” because of it's resemblance to a flight of wild ducks when viewed in a telescope. M11, wit

PIX4568454

Spiral Galaxy M51 in Hunting Dogs and Supernova - The Whirlpool Galaxy (M51) in Canes Venatici with SN 2005cs - The spiral galaxy M51 (NGC 5194) is located about 37 million years ago - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. On June 28, 2005 a supernova of type II appeared in M51; this supernova (SN 2005cs) is visible just under the nucleus, in the first arm. Image obtained with two telescopes of 50 cm and 30 cm, composite of several poses. The Whirlpool Galaxy lies approximately 31 million light years from earth. This spectacular galaxy is paired with a smaller, more distant companion whose matter is being disrupted by the larger spiral in a gravitational tug of war. Eventually, the shape of both will be altered over many more millions of years. On June 28, 2005, a new star was noticed in this galaxy. It was confirmed to be a bright supernova, one of the brightest in recent years and similar to the brightest superno

Spiral Galaxy M51 in Hunting Dogs and Supernova - The Whirlpool Galaxy (M51) in Canes Venatici with SN 2005cs - The spiral galaxy M51 (NGC 5194) is located about 37 million years ago - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. On June 28, 2005 a supernova of type II appeared in M51; this supernova (SN 2005cs) is visible just under the nucleus, in the first arm. Image obtained with two telescopes of 50 cm and 30 cm, composite of several poses. The Whirlpool Galaxy lies approximately 31 million light years from earth. This spectacular galaxy is paired with a smaller, more distant companion whose matter is being disrupted by the larger spiral in a gravitational tug of war. Eventually, the shape of both will be altered over many more millions of years. On June 28, 2005, a new star was noticed in this galaxy. It was confirmed to be a bright supernova, one of the brightest in recent years and similar to the brightest superno

R. Jay GaBany

PIX4612380

Spiral Galaxy M66 in the Lion - Spiral galaxy M66 in Leo - M66 (NGC 3627) is a spiral galaxy located at a distance of about 35 million years - light. M66, with its neighbors M65 and NGC 3628, forms a remarkable triplet of galaxies, called the Lion Triplet or the M66 Group. Image obtained at the VLT in December 2001. NGC 3627, also known as Messier 66, is a beautiful spiral with a well - developed central bulge. It also displays large - scale dust lanes. Many regions of warm hydrogen gas are seen throughout the disc of this galaxy. The latter regions are being ionised by radiation from clusters of newborn stars. Very active star - formation is most likely also occurring in the nuclear regions of NGC 3627.The galaxy forms, together with its neighbours M 65 and NGC 3628, the so - called “Leo Triplet””; they are located at a distance of about 35 million light - years. M 66 is the largest of the three. Its spiral arms appear distorted and displaced above the main plane of the galaxy. The as

Spiral Galaxy M66 in the Lion - Spiral galaxy M66 in Leo - M66 (NGC 3627) is a spiral galaxy located at a distance of about 35 million years - light. M66, with its neighbors M65 and NGC 3628, forms a remarkable triplet of galaxies, called the Lion Triplet or the M66 Group. Image obtained at the VLT in December 2001. NGC 3627, also known as Messier 66, is a beautiful spiral with a well - developed central bulge. It also displays large - scale dust lanes. Many regions of warm hydrogen gas are seen throughout the disc of this galaxy. The latter regions are being ionised by radiation from clusters of newborn stars. Very active star - formation is most likely also occurring in the nuclear regions of NGC 3627.The galaxy forms, together with its neighbours M 65 and NGC 3628, the so - called “Leo Triplet””; they are located at a distance of about 35 million light - years. M 66 is the largest of the three. Its spiral arms appear distorted and displaced above the main plane of the galaxy. The as

PIX4610814

Andromede Galaxy (M31) view in ultraviolet - The Andromeda galaxy seen in UV - This ultraviolet image is a mosaic of 10 images obtained by the GALEX satellite in September and October 2003. Regions of blue stars, young, warm and massive stars are clearly visible in the arms, where the stars are formed; in the center near the core, colder, orange-white, much older stars. The stars visible in the foreground belong to our Lactee Way. The GALEX observation of the large galaxy in Andromeda, Messier 31, was performed during September and October 2003. The image is a mosaic of 10 separate GALEX images combining the Far UV (colored blue) and Near UV detector (colored red) images together to make a color image of the sky almost six full moons across. The Andromeda galaxy is the most massive in the local group of galaxies, which includes our Milky Way, and is the nearest large galaxy to our own. The GALEX image shows blue regions of young, hot, high mass stars tracing out the spiral arms where s

Andromede Galaxy (M31) view in ultraviolet - The Andromeda galaxy seen in UV - This ultraviolet image is a mosaic of 10 images obtained by the GALEX satellite in September and October 2003. Regions of blue stars, young, warm and massive stars are clearly visible in the arms, where the stars are formed; in the center near the core, colder, orange-white, much older stars. The stars visible in the foreground belong to our Lactee Way. The GALEX observation of the large galaxy in Andromeda, Messier 31, was performed during September and October 2003. The image is a mosaic of 10 separate GALEX images combining the Far UV (colored blue) and Near UV detector (colored red) images together to make a color image of the sky almost six full moons across. The Andromeda galaxy is the most massive in the local group of galaxies, which includes our Milky Way, and is the nearest large galaxy to our own. The GALEX image shows blue regions of young, hot, high mass stars tracing out the spiral arms where s

PIX4608970

Tarantula Nebula (NGC 2070) in the Sea bream - Around the Tarantula nebula in the Large Magellanic Cloud - The Tarantula Nebula (or 30 Bream bream) is the largest star-forming region of the Great Magellan Cloud. It is located 170,000 light years ago in the constellation Dorado (southern hemisphere). At the center of this nebula, the open cluster of R136 stars, clusters of hot and massive stars. Mosaic of 14 images, 70 hours of cumulative poses. Known as the Tarantula Nebula for its spidery appearance, the 30 Doradus complex is a huge stellar factory. It is the largest emission nebula in the sky, and can be seen far down in the southern sky at a distance of about 170,000 light - years, in the southern constellation Dorado. It is part of one of the Milky Way's neighbouring galaxies, the Large Magellanic Cloud. The Tarantula Nebula is thought to contain more than half a million times the mass of the Sun in gas and this vast, blazing labyrinth hosts some of the most massive stars known. Su

Tarantula Nebula (NGC 2070) in the Sea bream - Around the Tarantula nebula in the Large Magellanic Cloud - The Tarantula Nebula (or 30 Bream bream) is the largest star-forming region of the Great Magellan Cloud. It is located 170,000 light years ago in the constellation Dorado (southern hemisphere). At the center of this nebula, the open cluster of R136 stars, clusters of hot and massive stars. Mosaic of 14 images, 70 hours of cumulative poses. Known as the Tarantula Nebula for its spidery appearance, the 30 Doradus complex is a huge stellar factory. It is the largest emission nebula in the sky, and can be seen far down in the southern sky at a distance of about 170,000 light - years, in the southern constellation Dorado. It is part of one of the Milky Way's neighbouring galaxies, the Large Magellanic Cloud. The Tarantula Nebula is thought to contain more than half a million times the mass of the Sun in gas and this vast, blazing labyrinth hosts some of the most massive stars known. Su

R. Gendler

PIX4618276

The Large Magellanic Cloud - The Large Magellanic Cloud - The Great Magellan Cloud galaxy is located about 160,000 light years away from Earth in the southern constellation of Dorado. Visible with the naked eye in the southern hemishere it is one of the closest galaxies to us. It contains large star-forming zones such as the Tarantula Nebula (30 Sea bream, visible to the left), the most active star-forming regions of the local group. Image obtained by the 1.2m UK Schmidt telescope from Siding Spring, Australia. The Large Magellanic Cloud (LMC) is the nearest galaxy to the Milky Way but less than one tenth as massive; even so it contains the equivalent of over ten billion solar masses of material in the form of stars, gas and dust. The LMC is at a distance of 160,000 light years and is visible to the unaided eye from southern latitudes, rather like a detached piece of the Milky Way. The nearness of the LMC ensures that it is well resolved into stars in quite a modest telescope, and deep

The Large Magellanic Cloud - The Large Magellanic Cloud - The Great Magellan Cloud galaxy is located about 160,000 light years away from Earth in the southern constellation of Dorado. Visible with the naked eye in the southern hemishere it is one of the closest galaxies to us. It contains large star-forming zones such as the Tarantula Nebula (30 Sea bream, visible to the left), the most active star-forming regions of the local group. Image obtained by the 1.2m UK Schmidt telescope from Siding Spring, Australia. The Large Magellanic Cloud (LMC) is the nearest galaxy to the Milky Way but less than one tenth as massive; even so it contains the equivalent of over ten billion solar masses of material in the form of stars, gas and dust. The LMC is at a distance of 160,000 light years and is visible to the unaided eye from southern latitudes, rather like a detached piece of the Milky Way. The nearness of the LMC ensures that it is well resolved into stars in quite a modest telescope, and deep

PIX4613427

Irregular galaxy NGC 3239 in the Lion - Irregular galaxy NGC 3239 in Leo - The irregular galaxy NGC 3239 is located 25 million light years ago in the constellation Lion. Also visible on this image is the supernova SN 2012a (under the bright star in the center of the image). About 40,000 light - years across, irregular galaxy NGC 3239 lies near the center of this field of galaxies in the galaxy rich constellation Leo. At a distance of only 25 million light - years it dominates the frame, sporting a peculiar arrangement of structures, young blue star clusters and star forming regions, suggesting that NGC 3239 (aka Arp 263) is the result of a galaxy merger. Appearing almost on top of the pretty galaxy is a bright, spiky, foreground star, a nearby member of our own Milky Way galaxy almost directly along our line - of - sight to NGC 3239. Still, NGC 3239 is notable for hosting this year's first confirmed supernova, designated SN 2012A. SN 2012A is just below and right of the bright foregrou

Irregular galaxy NGC 3239 in the Lion - Irregular galaxy NGC 3239 in Leo - The irregular galaxy NGC 3239 is located 25 million light years ago in the constellation Lion. Also visible on this image is the supernova SN 2012a (under the bright star in the center of the image). About 40,000 light - years across, irregular galaxy NGC 3239 lies near the center of this field of galaxies in the galaxy rich constellation Leo. At a distance of only 25 million light - years it dominates the frame, sporting a peculiar arrangement of structures, young blue star clusters and star forming regions, suggesting that NGC 3239 (aka Arp 263) is the result of a galaxy merger. Appearing almost on top of the pretty galaxy is a bright, spiky, foreground star, a nearby member of our own Milky Way galaxy almost directly along our line - of - sight to NGC 3239. Still, NGC 3239 is notable for hosting this year's first confirmed supernova, designated SN 2012A. SN 2012A is just below and right of the bright foregrou

Adam Block

PIX4610534

The Magnificent Omega Centauri, 2014 (digital photo)

The Magnificent Omega Centauri, 2014 (digital photo)

Bobillo, Ignacio Diaz (20th-21st century)

MMM7340386

Inverted colours of the boundary between Mare Serenitatis and Mare Tranquilitatis, 2017 (digital photo)

Inverted colours of the boundary between Mare Serenitatis and Mare Tranquilitatis, 2017 (digital photo)

Borrell, Jordi Delpeix (21st century)

MMM7340397

Spiral galaxy NGC 7424 in the Crane - Galaxy NGC 7424 in Grus - The barree spiral galaxy NGC 7424 is located about 40 million years away from Earth. NGC 7424 extends over nearly 100,000 light years, like our galaxy. Numerous bright blue clusters of massive young stars are visible along the spiral arms. Image obtained by the telescope MELIPAL of the VLT on October 9, 2004 Composite colour - coded image of spiral galaxy, NGC 7424, at a distance of 40 million light - years. This galaxy is classified as “” SAB (rs) cd””, meaning that it is intermediate between normal spirals (SA) and strongly barred galaxies (SB) and that it has rather open arms with a small central region. It also shows many ionised regions as well as clusters of young and massive stars. Ten young massive star clusters can be identified whose size span the range from 1 to 200 light - years. The galaxy itself is roughly 100,000 light - years across, that is, quite similar in size to our own Milky Way galaxy. Images obtaine

Spiral galaxy NGC 7424 in the Crane - Galaxy NGC 7424 in Grus - The barree spiral galaxy NGC 7424 is located about 40 million years away from Earth. NGC 7424 extends over nearly 100,000 light years, like our galaxy. Numerous bright blue clusters of massive young stars are visible along the spiral arms. Image obtained by the telescope MELIPAL of the VLT on October 9, 2004 Composite colour - coded image of spiral galaxy, NGC 7424, at a distance of 40 million light - years. This galaxy is classified as “” SAB (rs) cd””, meaning that it is intermediate between normal spirals (SA) and strongly barred galaxies (SB) and that it has rather open arms with a small central region. It also shows many ionised regions as well as clusters of young and massive stars. Ten young massive star clusters can be identified whose size span the range from 1 to 200 light - years. The galaxy itself is roughly 100,000 light - years across, that is, quite similar in size to our own Milky Way galaxy. Images obtaine

PIX4613160

Spiral galaxy M74 in Pisces - Spiral galaxy M74 in Pisces - Image of the spiral galaxy M74 (NGC 628). This galaxy is about 80,000 light years and is 30 million light years apart. Viewed face on, as it appeared about 30 million years ago, M74 is considered to be one of the most photogenic spiral galaxies in the sky. The galaxy is rich in young bright blue stars and glowing red regions of dust and molecular hydrogen where new stars are being created. M74, however, is quite camera shy - it has a low surface brightness that makes it challenging for both visual observers and astrophotographers to see it's entire form. The Chandra X - Ray observatory, discovered M74 to be the home of a super massive black hole, tucked away in one of it's outer arms. This black hole is one of the largest ever discovered and has the mass of over 10,000 suns. Thirty six, fifteen minute photographs were combined to create this picture, with a total exposure time of almost nine hours. The images were taken with a

Spiral galaxy M74 in Pisces - Spiral galaxy M74 in Pisces - Image of the spiral galaxy M74 (NGC 628). This galaxy is about 80,000 light years and is 30 million light years apart. Viewed face on, as it appeared about 30 million years ago, M74 is considered to be one of the most photogenic spiral galaxies in the sky. The galaxy is rich in young bright blue stars and glowing red regions of dust and molecular hydrogen where new stars are being created. M74, however, is quite camera shy - it has a low surface brightness that makes it challenging for both visual observers and astrophotographers to see it's entire form. The Chandra X - Ray observatory, discovered M74 to be the home of a super massive black hole, tucked away in one of it's outer arms. This black hole is one of the largest ever discovered and has the mass of over 10,000 suns. Thirty six, fifteen minute photographs were combined to create this picture, with a total exposure time of almost nine hours. The images were taken with a

R. Jay GaBany

PIX4609403

Globular cluster 47 Toucan - The globular cluster 47 Tucanae, NGC 104 - The globular cluster 47 Toucan (or NGC 104) is visible to the naked eye from the southern hemisphere. Located about 15000 years ago - light it contains several million stars, some of which are among the oldest stars known today. Image obtained from the 3.9m telescope of Siding Spring, Australia. Among the many spectacular objects in the southern skies are two magnificent naked - eye globular clusters, omega Centauri and 47 Tucanae. These ancient cities of stars are captives of the Milky Way but were formed long before our Galaxy assumed its present shape, indeed these clusters have some of the oldest known stars. 47 Tuc is about 15,000 light years distant and contains several million stars, as many as some minor galaxies. The crowded central region leads to occasional stellar encounters and it is in 47 Tuc that rapidly - spinning pulsars have been discovered by radio astronomers. Although the light of globular clus

Globular cluster 47 Toucan - The globular cluster 47 Tucanae, NGC 104 - The globular cluster 47 Toucan (or NGC 104) is visible to the naked eye from the southern hemisphere. Located about 15000 years ago - light it contains several million stars, some of which are among the oldest stars known today. Image obtained from the 3.9m telescope of Siding Spring, Australia. Among the many spectacular objects in the southern skies are two magnificent naked - eye globular clusters, omega Centauri and 47 Tucanae. These ancient cities of stars are captives of the Milky Way but were formed long before our Galaxy assumed its present shape, indeed these clusters have some of the oldest known stars. 47 Tuc is about 15,000 light years distant and contains several million stars, as many as some minor galaxies. The crowded central region leads to occasional stellar encounters and it is in 47 Tuc that rapidly - spinning pulsars have been discovered by radio astronomers. Although the light of globular clus

PIX4564283

Globular cluster M72 in Aquarius - Globular cluster M72 in Aquarius - M72 (NGC 6981) is a cluster of stars located about 50,000 years from Earth. Image obtained by the Hubble Space Telescope. This rich collection of scattered stars, known as Messier 72, is actually a globular cluster, an ancient spherical collection of old stars packed much closer together at its centre. As well as huge numbers of stars in the cluster itself the picture also captures the images of many much more distant galaxies seen between and around the cluster stars. English astronomer Pierre Megchain discovered this rich cluster in August of 1780, but we take Messier 72's most common name from Mechain's colleague Charles Messier, who recorded it as the 72nd entry in his famous catalog of comet - like objects just two months later. This globular cluster lies in the constellation of Aquarius (the Water Bearer) about 50 000 light - years from Earth. This image was taken with the Wide Field Channel of the Advanced Cam

Globular cluster M72 in Aquarius - Globular cluster M72 in Aquarius - M72 (NGC 6981) is a cluster of stars located about 50,000 years from Earth. Image obtained by the Hubble Space Telescope. This rich collection of scattered stars, known as Messier 72, is actually a globular cluster, an ancient spherical collection of old stars packed much closer together at its centre. As well as huge numbers of stars in the cluster itself the picture also captures the images of many much more distant galaxies seen between and around the cluster stars. English astronomer Pierre Megchain discovered this rich cluster in August of 1780, but we take Messier 72's most common name from Mechain's colleague Charles Messier, who recorded it as the 72nd entry in his famous catalog of comet - like objects just two months later. This globular cluster lies in the constellation of Aquarius (the Water Bearer) about 50 000 light - years from Earth. This image was taken with the Wide Field Channel of the Advanced Cam

PIX4565111

Galaxy NGC 1427A in the Furnace - The irregular galaxy NGC 1427A in Fornax - The galaxy NGC 1427A is located in the Furnace cluster about 62 million years ago - light from Earth. It is an irregular galaxy populated with young clusters of blue stars and many star-forming regions. Further away, other galaxies are visible in the background. The irregular galaxy NGC 1427A is a small bluish galaxy plunging headlong into the Fornax galaxy group at 600 kilometers per second or nearly 400 miles per second. NGC 1427A, which is located some 62 million light - years away from Earth in the direction of the constellation Fornax, shows numerous hot, blue stars in this image obtained by the Hubble Space Telescope. These blue stars have been formed very recently, showing that star formation is occurring extensively throughout the galaxy. NGC 1427A will not survive long as an identifiable galaxy passing through the cluster. Within the next billion years, it will be completely disrupted, spilling its st

Galaxy NGC 1427A in the Furnace - The irregular galaxy NGC 1427A in Fornax - The galaxy NGC 1427A is located in the Furnace cluster about 62 million years ago - light from Earth. It is an irregular galaxy populated with young clusters of blue stars and many star-forming regions. Further away, other galaxies are visible in the background. The irregular galaxy NGC 1427A is a small bluish galaxy plunging headlong into the Fornax galaxy group at 600 kilometers per second or nearly 400 miles per second. NGC 1427A, which is located some 62 million light - years away from Earth in the direction of the constellation Fornax, shows numerous hot, blue stars in this image obtained by the Hubble Space Telescope. These blue stars have been formed very recently, showing that star formation is occurring extensively throughout the galaxy. NGC 1427A will not survive long as an identifiable galaxy passing through the cluster. Within the next billion years, it will be completely disrupted, spilling its st

PIX4609868

Nebula N70 in the Great Magellan Cloud - The N 70 nebula in Large Magellanic Cloud (LMC) - The Henize 70 nebula extends for about 400 years - light, it is located in the Great Magellan Cloud. In the center, a small group of very massive and extremely hot stars, stars of Wolf - Rayet. Image obtained by Siding Spring's 3.9m telescope. At the centre of this remarkable bubble - like nebula nebula is a small group of extremely hot stars. Some of these stars are rapdly losing mass and have stellar winds blowing from their surfaces with velocities that approach 4000 kilometers per second. Such stars are known as Wolf - Rayet stars and are found in galaxies capable of forming massive stars. There are many such stars in the Large Magellanic Cloud (LMC) but not all of them are associated with distinctive nebulae. The outward flowing streams of energetic particles from Wolf - Rayet (and other energetic stars) eventually interact with the relatively stationary interstellar medium pervading the LMC

Nebula N70 in the Great Magellan Cloud - The N 70 nebula in Large Magellanic Cloud (LMC) - The Henize 70 nebula extends for about 400 years - light, it is located in the Great Magellan Cloud. In the center, a small group of very massive and extremely hot stars, stars of Wolf - Rayet. Image obtained by Siding Spring's 3.9m telescope. At the centre of this remarkable bubble - like nebula nebula is a small group of extremely hot stars. Some of these stars are rapdly losing mass and have stellar winds blowing from their surfaces with velocities that approach 4000 kilometers per second. Such stars are known as Wolf - Rayet stars and are found in galaxies capable of forming massive stars. There are many such stars in the Large Magellanic Cloud (LMC) but not all of them are associated with distinctive nebulae. The outward flowing streams of energetic particles from Wolf - Rayet (and other energetic stars) eventually interact with the relatively stationary interstellar medium pervading the LMC

PIX4620872

Globular cluster 47 Toucan - The globular cluster 47 Tucanae NGC 104 - The globular cluster 47 Toucan (or NGC 104) is visible to the naked eye from the southern hemisphere. Located about 15000 years ago - light it contains several million stars, some of which are among the oldest stars known today. Image obtained from the 3.9m telescope of Siding Spring, Australia. Among the many spectacular objects in the southern skies are two magnificent naked - eye globular clusters, omega Centauri and 47 Tucanae. These ancient cities of stars are captives of the Milky Way but were formed long before our Galaxy assumed its present shape, indeed these clusters have some of the oldest known stars. 47 Tuc is about 15,000 light years distant and contains several million stars, as many as some minor galaxies. The crowded central region leads to occasional stellar encounters and it is in 47 Tuc that rapidly - spinning pulsars have been discovered by radio astronomers. Although the light of globular clust

Globular cluster 47 Toucan - The globular cluster 47 Tucanae NGC 104 - The globular cluster 47 Toucan (or NGC 104) is visible to the naked eye from the southern hemisphere. Located about 15000 years ago - light it contains several million stars, some of which are among the oldest stars known today. Image obtained from the 3.9m telescope of Siding Spring, Australia. Among the many spectacular objects in the southern skies are two magnificent naked - eye globular clusters, omega Centauri and 47 Tucanae. These ancient cities of stars are captives of the Milky Way but were formed long before our Galaxy assumed its present shape, indeed these clusters have some of the oldest known stars. 47 Tuc is about 15,000 light years distant and contains several million stars, as many as some minor galaxies. The crowded central region leads to occasional stellar encounters and it is in 47 Tuc that rapidly - spinning pulsars have been discovered by radio astronomers. Although the light of globular clust

PIX4564306

Globular cluster 47 Toucan - The globular cluster 47 Tucanae NGC 104 - The globular cluster 47 Toucan (or NGC 104) is visible to the naked eye from the southern hemisphere. Located about 15000 years ago - light it contains several million stars, some of which are among the oldest stars known today. Image obtained from the 3.9m telescope of Siding Spring, Australia. Among the many spectacular objects in the southern skies are two magnificent naked - eye globular clusters, omega Centauri and 47 Tucanae. These ancient cities of stars are captives of the Milky Way but were formed long before our Galaxy assumed its present shape, indeed these clusters have some of the oldest known stars. 47 Tuc is about 15,000 light years distant and contains several million stars, as many as some minor galaxies. The crowded central region leads to occasional stellar encounters and it is in 47 Tuc that rapidly - spinning pulsars have been discovered by radio astronomers. Although the light of globular clust

Globular cluster 47 Toucan - The globular cluster 47 Tucanae NGC 104 - The globular cluster 47 Toucan (or NGC 104) is visible to the naked eye from the southern hemisphere. Located about 15000 years ago - light it contains several million stars, some of which are among the oldest stars known today. Image obtained from the 3.9m telescope of Siding Spring, Australia. Among the many spectacular objects in the southern skies are two magnificent naked - eye globular clusters, omega Centauri and 47 Tucanae. These ancient cities of stars are captives of the Milky Way but were formed long before our Galaxy assumed its present shape, indeed these clusters have some of the oldest known stars. 47 Tuc is about 15,000 light years distant and contains several million stars, as many as some minor galaxies. The crowded central region leads to occasional stellar encounters and it is in 47 Tuc that rapidly - spinning pulsars have been discovered by radio astronomers. Although the light of globular clust

PIX4564310

Nebula N159 in the Great Magellan Cloud - N159 star forming region in Large Magellanic Cloud (LMC): N159 is a star-forming region located in the galaxy of the Great Magellan Cloud. Image obtained by the Hubble Space Telescope (HST) - This shot from the NASA/ESA Hubble Space Telescope shows a maelstrom of glowing gas and dark dust within one of the Milky Way's satellite galaxies, the Large Magellanic Cloud (LMC). This stormy scene shows a stellar nursery known as N159, an HII region over 150 light-years across. N159 contains many hot young stars. These stars are emitting intense ultraviolet light, which causes nearby hydrogen gas to glow, and torrential stellar winds, which are carving out ridges, arcs, and filaments from the surrounding material. At the heart of this cosmic cloud lies the Papillon Nebula, a butterfly-shaped region of nebulosity. This small, dense object is classified as a High-Excitation Blob, and is thought to be tightly linked to the early stages of massive star form

Nebula N159 in the Great Magellan Cloud - N159 star forming region in Large Magellanic Cloud (LMC): N159 is a star-forming region located in the galaxy of the Great Magellan Cloud. Image obtained by the Hubble Space Telescope (HST) - This shot from the NASA/ESA Hubble Space Telescope shows a maelstrom of glowing gas and dark dust within one of the Milky Way's satellite galaxies, the Large Magellanic Cloud (LMC). This stormy scene shows a stellar nursery known as N159, an HII region over 150 light-years across. N159 contains many hot young stars. These stars are emitting intense ultraviolet light, which causes nearby hydrogen gas to glow, and torrential stellar winds, which are carving out ridges, arcs, and filaments from the surrounding material. At the heart of this cosmic cloud lies the Papillon Nebula, a butterfly-shaped region of nebulosity. This small, dense object is classified as a High-Excitation Blob, and is thought to be tightly linked to the early stages of massive star form

PIX4620798

Tarantula Nebula (NGC 2070) in the Sea bream - Around the Tarantula nebula in the Large Magellanic Cloud - The Tarantula Nebula (or 30 Bream bream) is the largest star-forming region of the Great Magellan Cloud. It is located 170,000 light years ago in the constellation Dorado (southern hemisphere). At the center of this nebula, the open cluster of R136 stars, clusters of hot and massive stars. Mosaic of 14 images, 70 hours of cumulative poses. Known as the Tarantula Nebula for its spidery appearance, the 30 Doradus complex is a huge stellar factory. It is the largest emission nebula in the sky, and can be seen far down in the southern sky at a distance of about 170,000 light - years, in the southern constellation Dorado. It is part of one of the Milky Way's neighbouring galaxies, the Large Magellanic Cloud. The Tarantula Nebula is thought to contain more than half a million times the mass of the Sun in gas and this vast, blazing labyrinth hosts some of the most massive stars known. Su

Tarantula Nebula (NGC 2070) in the Sea bream - Around the Tarantula nebula in the Large Magellanic Cloud - The Tarantula Nebula (or 30 Bream bream) is the largest star-forming region of the Great Magellan Cloud. It is located 170,000 light years ago in the constellation Dorado (southern hemisphere). At the center of this nebula, the open cluster of R136 stars, clusters of hot and massive stars. Mosaic of 14 images, 70 hours of cumulative poses. Known as the Tarantula Nebula for its spidery appearance, the 30 Doradus complex is a huge stellar factory. It is the largest emission nebula in the sky, and can be seen far down in the southern sky at a distance of about 170,000 light - years, in the southern constellation Dorado. It is part of one of the Milky Way's neighbouring galaxies, the Large Magellanic Cloud. The Tarantula Nebula is thought to contain more than half a million times the mass of the Sun in gas and this vast, blazing labyrinth hosts some of the most massive stars known. Su

R. Gendler

PIX4618298

Nebula N70 in the Great Magellan Cloud - The N 70 nebula in Large Magellanic Cloud (LMC) - The Henize 70 nebula extends for about 400 years - light, it is located in the Great Magellan Cloud. In the center, a small group of very massive and extremely hot stars, stars of Wolf - Rayet. Image obtained by Siding Spring's 3.9m telescope. At the centre of this remarkable bubble - like nebula nebula is a small group of extremely hot stars. Some of these stars are rapdly losing mass and have stellar winds blowing from their surfaces with velocities that approach 4000 kilometers per second. Such stars are known as Wolf - Rayet stars and are found in galaxies capable of forming massive stars. There are many such stars in the Large Magellanic Cloud (LMC) but not all of them are associated with distinctive nebulae. The outward flowing streams of energetic particles from Wolf - Rayet (and other energetic stars) eventually interact with the relatively stationary interstellar medium pervading the LMC

Nebula N70 in the Great Magellan Cloud - The N 70 nebula in Large Magellanic Cloud (LMC) - The Henize 70 nebula extends for about 400 years - light, it is located in the Great Magellan Cloud. In the center, a small group of very massive and extremely hot stars, stars of Wolf - Rayet. Image obtained by Siding Spring's 3.9m telescope. At the centre of this remarkable bubble - like nebula nebula is a small group of extremely hot stars. Some of these stars are rapdly losing mass and have stellar winds blowing from their surfaces with velocities that approach 4000 kilometers per second. Such stars are known as Wolf - Rayet stars and are found in galaxies capable of forming massive stars. There are many such stars in the Large Magellanic Cloud (LMC) but not all of them are associated with distinctive nebulae. The outward flowing streams of energetic particles from Wolf - Rayet (and other energetic stars) eventually interact with the relatively stationary interstellar medium pervading the LMC

PIX4620865

Eagle Nebula (IC 4703) and M16 star cluster in the Snake - M16, The Eagle Nebula in Serpens - The M16 star cluster is a cluster of young stars from 7000 years - light, formed about 2 million years ago in the Eagle nebula, IC 4703. These stars are much warmer than the Sun and can be 30 times more massive. Image obtained by combining light through 3 different filters that highlight oxygen, hydrogen, and sulfur. Messier 16 is a cluster of young stars which formed about 2 million years ago from the gas and dust which still surrounds them. Brilliant blue stars of this type are much hotter than the Sun and can be up to thirty times more massive. The dark intrusions visible across the face of the nebula are condensations of dusty material which might one day collapse into yet more stars, should they survive the radiation from the bright stars, which is gradually etching them away. Bright red regions of photo - ionised hydrogen such as M16 are usually found in the spiral arms of galaxies and a

Eagle Nebula (IC 4703) and M16 star cluster in the Snake - M16, The Eagle Nebula in Serpens - The M16 star cluster is a cluster of young stars from 7000 years - light, formed about 2 million years ago in the Eagle nebula, IC 4703. These stars are much warmer than the Sun and can be 30 times more massive. Image obtained by combining light through 3 different filters that highlight oxygen, hydrogen, and sulfur. Messier 16 is a cluster of young stars which formed about 2 million years ago from the gas and dust which still surrounds them. Brilliant blue stars of this type are much hotter than the Sun and can be up to thirty times more massive. The dark intrusions visible across the face of the nebula are condensations of dusty material which might one day collapse into yet more stars, should they survive the radiation from the bright stars, which is gradually etching them away. Bright red regions of photo - ionised hydrogen such as M16 are usually found in the spiral arms of galaxies and a

PIX4620021

Spiral galaxy NGC 300 in the Sculptor - Galaxy NGC 300 in Sculptor - Located about 7 million years ago - light from Earth, the spiral galaxy NGC 300 belongs to the Sculptor's group. It appears to us as a great object in the sky since its apparent diameter is almost that of the full moon. This photo was obtained by the MPG/ESO telesope of 2.2 - m in La Silla in Chile in 2000. Located some 7 million light - years away, the spiral galaxy NGC 300 is a beautiful representative of its class, a Milky - Way - like member of the prominent Sculptor group of galaxies in the southern constellation of that name. NGC 300 is a big object in the sky - being so close, it extends over an angle of almost 25 arcmin, only slightly less than the size of the full moon. It is also relative bright, even a small pair of binoculars will unveil this magnificent spiral galaxy as a hazy glowing patch on a dark sky background. The comparatively small distance of NGC 300 and its face - on orientation provide astronom

Spiral galaxy NGC 300 in the Sculptor - Galaxy NGC 300 in Sculptor - Located about 7 million years ago - light from Earth, the spiral galaxy NGC 300 belongs to the Sculptor's group. It appears to us as a great object in the sky since its apparent diameter is almost that of the full moon. This photo was obtained by the MPG/ESO telesope of 2.2 - m in La Silla in Chile in 2000. Located some 7 million light - years away, the spiral galaxy NGC 300 is a beautiful representative of its class, a Milky - Way - like member of the prominent Sculptor group of galaxies in the southern constellation of that name. NGC 300 is a big object in the sky - being so close, it extends over an angle of almost 25 arcmin, only slightly less than the size of the full moon. It is also relative bright, even a small pair of binoculars will unveil this magnificent spiral galaxy as a hazy glowing patch on a dark sky background. The comparatively small distance of NGC 300 and its face - on orientation provide astronom

PIX4609158

Eagle Nebula (IC 4703) and M16 star cluster in Snake - The Eagle nebula in Serpens - Eagle Nebula (IC 4703) and M16 star cluster in Snake. The M16 star cluster is a cluster of young stars distant from 7000 years - light, formed about 2 million years ago in the Eagle nebula, IC 4703. These stars are much warmer than the Sun and can be 30 times more massive. Image obtained with a telescope 61 cm in diameter. Messier 16 is a cluster of young stars which formed about 2 million years ago from the gas and dust which still surrounds them. Brilliant blue stars of this type are much hotter than the Sun and can be up to thirty times more massive. The dark intrusions visible across the face of the nebula are condensations of dusty material which might one day collapse into yet more stars, should they survive the radiation from the bright stars, which is gradually etching them away. Bright red regions of photo - ionised hydrogen such as M16 are usually found in the spiral arms of galaxies and are

Eagle Nebula (IC 4703) and M16 star cluster in Snake - The Eagle nebula in Serpens - Eagle Nebula (IC 4703) and M16 star cluster in Snake. The M16 star cluster is a cluster of young stars distant from 7000 years - light, formed about 2 million years ago in the Eagle nebula, IC 4703. These stars are much warmer than the Sun and can be 30 times more massive. Image obtained with a telescope 61 cm in diameter. Messier 16 is a cluster of young stars which formed about 2 million years ago from the gas and dust which still surrounds them. Brilliant blue stars of this type are much hotter than the Sun and can be up to thirty times more massive. The dark intrusions visible across the face of the nebula are condensations of dusty material which might one day collapse into yet more stars, should they survive the radiation from the bright stars, which is gradually etching them away. Bright red regions of photo - ionised hydrogen such as M16 are usually found in the spiral arms of galaxies and are

Adam Block

PIX4620009

Spiral galaxy NGC 300 in the Sculptor - Galaxy NGC 300 in Sculptor - Located about 7 million years ago - light from Earth, the spiral galaxy NGC 300 belongs to the Sculptor's group. It appears to us as a great object in the sky since its apparent diameter is almost that of the full moon. This photo was obtained by the MPG/ESO telesope of 2.2 - m in La Silla in Chile, total pose of 50 hours. Located some 7 million light - years away, the spiral galaxy NGC 300 is a beautiful representative of its class, a Milky - Way - like member of the prominent Sculptor group of galaxies in the southern constellation of that name. This picture of NGC 300 was taken using the Wide Field Imager (WFI) at Eso's La Silla Observatory in Chile. It was assembled from many individual images through a large set of different filters over many observing nights, spanning several years. The images were mostly taken through filters that transmit red, green or blue light. These were supplemented by images through spec

Spiral galaxy NGC 300 in the Sculptor - Galaxy NGC 300 in Sculptor - Located about 7 million years ago - light from Earth, the spiral galaxy NGC 300 belongs to the Sculptor's group. It appears to us as a great object in the sky since its apparent diameter is almost that of the full moon. This photo was obtained by the MPG/ESO telesope of 2.2 - m in La Silla in Chile, total pose of 50 hours. Located some 7 million light - years away, the spiral galaxy NGC 300 is a beautiful representative of its class, a Milky - Way - like member of the prominent Sculptor group of galaxies in the southern constellation of that name. This picture of NGC 300 was taken using the Wide Field Imager (WFI) at Eso's La Silla Observatory in Chile. It was assembled from many individual images through a large set of different filters over many observing nights, spanning several years. The images were mostly taken through filters that transmit red, green or blue light. These were supplemented by images through spec

PIX4609239

Herschel satellite - Herschel spacecraft being prepared for acoustic tests - The European satellite Herschel prepares for acoustic tests in June 2008. The Herschel Space Observatory, scheduled to launch in 2009, will study in the infrared the formation of galaxies, stars and planetary systems. This satellite measures nearly 7 metres high by 4.3 metres wide and weighs 3.25 tonnes. Its telescope has a 3.5-meter mirror, making it the largest mirror ever made for a scientific space mission. Herschel will orbit around Lagrange 2, approximately 1.5 million kilometres from Earth. A picture of the Herschel spacecraft being prepared for acoustic tests. On 5 and 6 June 2008, the Herschel spacecraft successfully passed its acoustic tests. During the tests, the spacecraft was subjected to acoustic noise, generated to simulate the noise levels during launch, at the European Space Research and Technology Centre's Large European Acoustic Facility (LEAF). ESA's Herschel Space Observatory will observe

Herschel satellite - Herschel spacecraft being prepared for acoustic tests - The European satellite Herschel prepares for acoustic tests in June 2008. The Herschel Space Observatory, scheduled to launch in 2009, will study in the infrared the formation of galaxies, stars and planetary systems. This satellite measures nearly 7 metres high by 4.3 metres wide and weighs 3.25 tonnes. Its telescope has a 3.5-meter mirror, making it the largest mirror ever made for a scientific space mission. Herschel will orbit around Lagrange 2, approximately 1.5 million kilometres from Earth. A picture of the Herschel spacecraft being prepared for acoustic tests. On 5 and 6 June 2008, the Herschel spacecraft successfully passed its acoustic tests. During the tests, the spacecraft was subjected to acoustic noise, generated to simulate the noise levels during launch, at the European Space Research and Technology Centre's Large European Acoustic Facility (LEAF). ESA's Herschel Space Observatory will observe

A. Le Floch

PIX4646080

Telescope E - ELT - Artist's view - European Extremely Large Telescope - Artwork - Artist's view of the E - ELT (European Extremely Large Telescope), a telescope project measuring 40 metres in diameter. Its main mirror will consist of 906 hexagonal mirrors assembled together, and its total surface will be equal to that of a football field. A new architectural concept drawing of Eso's planned European Extremely Large Telescope (E - ELT) shows the telescope at work, with its dome open and its record - setting 40 - metre - class primary mirror pointed to the sky. In this illustration, clouds float over the valley overlooked by the E - Elt's summit. The comparatively tiny pickup truck parked at the base of the E - ELT helps to give a sense of the scale of this massive telescope. The E - ELT dome will be similar in size to a football stadium, with a diameter at its base of over 100 m and a height of over 80 m. Scheduled to begin operations early in the next decade, the E - ELT will help tra

Telescope E - ELT - Artist's view - European Extremely Large Telescope - Artwork - Artist's view of the E - ELT (European Extremely Large Telescope), a telescope project measuring 40 metres in diameter. Its main mirror will consist of 906 hexagonal mirrors assembled together, and its total surface will be equal to that of a football field. A new architectural concept drawing of Eso's planned European Extremely Large Telescope (E - ELT) shows the telescope at work, with its dome open and its record - setting 40 - metre - class primary mirror pointed to the sky. In this illustration, clouds float over the valley overlooked by the E - Elt's summit. The comparatively tiny pickup truck parked at the base of the E - ELT helps to give a sense of the scale of this massive telescope. The E - ELT dome will be similar in size to a football stadium, with a diameter at its base of over 100 m and a height of over 80 m. Scheduled to begin operations early in the next decade, the E - ELT will help tra

PIX4653098

Globular cluster M71 in the Fleche - Globular cluster M71 in Sagitta - M71 is located about 12,000 light years away from Earth. Image of the central region of the cluster obtained by the Hubble space telescope. This NASA/ESA Hubble Space Telescope image shows a bright scattering of stars in the small constellation of Sagitta (the Arrow). This is the centre of the globular cluster Messier 71, a great ball of ancient stars on the edge of our galaxy around 13,000 light - years from Earth. M71 is around 27 light - years across. Globular clusters are like galactic suburbs, pockets of stars that exist on the edge of major galaxies. These clusters are tightly bound together by their gravitational attraction, hence their spherical shape and their name: globulus means little sphere”” in Latin. Around 150 such globular clusters are known to exist around our Milky Way, each one of them containing several hundred thousand stars. Despite being a familiar object, Messier 71's precise nature was disp

Globular cluster M71 in the Fleche - Globular cluster M71 in Sagitta - M71 is located about 12,000 light years away from Earth. Image of the central region of the cluster obtained by the Hubble space telescope. This NASA/ESA Hubble Space Telescope image shows a bright scattering of stars in the small constellation of Sagitta (the Arrow). This is the centre of the globular cluster Messier 71, a great ball of ancient stars on the edge of our galaxy around 13,000 light - years from Earth. M71 is around 27 light - years across. Globular clusters are like galactic suburbs, pockets of stars that exist on the edge of major galaxies. These clusters are tightly bound together by their gravitational attraction, hence their spherical shape and their name: globulus means little sphere”” in Latin. Around 150 such globular clusters are known to exist around our Milky Way, each one of them containing several hundred thousand stars. Despite being a familiar object, Messier 71's precise nature was disp

PIX4565068

James Webb Space Telescope Mirrors (JWST) - Testing of the JWST's mirrors - Six of the 18 JWST (James Webb Space Telescope) mirrors seen at Nasa's Marshall Space Center. These mirrors will be tested there to ensure they will withstand the extreme temperatures of space vacuum. The JWST will replace the Hubble Space Telescope in 2014. Equipped with a 6.5 m mirror, he will observe the universe mainly in infrared. Six of the 18 James Webb Space Telescope mirror segments are being moved into the X - ray and Cryogenic Facility, or XRCF, at Nasa's Marshall Space Flight Center in Huntsville, Ala., to eventually experience temperatures dipping to a chilling - 414 degrees Fahrenheit to ensure they can withstand the extreme space environments. The test chamber takes approximately five days to cool a mirror segment to cryogenic temperatures. Marshall's X - ray & Cryogenic Facility is the world's largest X - ray telescope test facility and a unique, cryogenic, clean room optical test location. The

James Webb Space Telescope Mirrors (JWST) - Testing of the JWST's mirrors - Six of the 18 JWST (James Webb Space Telescope) mirrors seen at Nasa's Marshall Space Center. These mirrors will be tested there to ensure they will withstand the extreme temperatures of space vacuum. The JWST will replace the Hubble Space Telescope in 2014. Equipped with a 6.5 m mirror, he will observe the universe mainly in infrared. Six of the 18 James Webb Space Telescope mirror segments are being moved into the X - ray and Cryogenic Facility, or XRCF, at Nasa's Marshall Space Flight Center in Huntsville, Ala., to eventually experience temperatures dipping to a chilling - 414 degrees Fahrenheit to ensure they can withstand the extreme space environments. The test chamber takes approximately five days to cool a mirror segment to cryogenic temperatures. Marshall's X - ray & Cryogenic Facility is the world's largest X - ray telescope test facility and a unique, cryogenic, clean room optical test location. The

PIX4645744

James Webb Space Telescope Mirrors (JWST) - Testing of the JWST's mirrors - Six of the 18 JWST (James Webb Space Telescope) mirrors seen at Nasa's Marshall Space Center. These mirrors will be tested there to ensure they will withstand the extreme temperatures of space vacuum. The JWST will replace the Hubble Space Telescope in 2014. Equipped with a 6.5 m mirror, he will observe the universe mainly in infrared. Six of the 18 James Webb Space Telescope mirror segments are being moved into the X - ray and Cryogenic Facility, or XRCF, at Nasa's Marshall Space Flight Center in Huntsville, Ala., to eventually experience temperatures dipping to a chilling - 414 degrees Fahrenheit to ensure they can withstand the extreme space environments. The test chamber takes approximately five days to cool a mirror segment to cryogenic temperatures. Marshall's X - ray & Cryogenic Facility is the world's largest X - ray telescope test facility and a unique, cryogenic, clean room optical test location. The

James Webb Space Telescope Mirrors (JWST) - Testing of the JWST's mirrors - Six of the 18 JWST (James Webb Space Telescope) mirrors seen at Nasa's Marshall Space Center. These mirrors will be tested there to ensure they will withstand the extreme temperatures of space vacuum. The JWST will replace the Hubble Space Telescope in 2014. Equipped with a 6.5 m mirror, he will observe the universe mainly in infrared. Six of the 18 James Webb Space Telescope mirror segments are being moved into the X - ray and Cryogenic Facility, or XRCF, at Nasa's Marshall Space Flight Center in Huntsville, Ala., to eventually experience temperatures dipping to a chilling - 414 degrees Fahrenheit to ensure they can withstand the extreme space environments. The test chamber takes approximately five days to cool a mirror segment to cryogenic temperatures. Marshall's X - ray & Cryogenic Facility is the world's largest X - ray telescope test facility and a unique, cryogenic, clean room optical test location. The

PIX4645755

James Webb Space Telescope (JWST) - Artist view - The James Webb Space Telescope (JWST) - Artist view: The James Webb Space Telescope (JWST) will replace the Hubble Space Telescope in 2018. The James Webb Space Telescope (JWST) is a large, infrared-optimized space telescope scheduled for launch in 2018. Equipped with a large mirror 6.5 meters (21.3 feet) in diameter, it will find the first galaxies that formed in the early Universe, connecting the Big Bang to our own Milky Way Galaxy and will reside in an orbit about 1.5 million km (1 million miles) from the Earth - The shaded side of the James Webb Space Telescope (JWST) as it may appear later this decade when it is observing from the Earth-Sun L2 point about 930 thousand miles from the Earth. Part of the Milky Way can be seen reflected in the 21-foot diameter mirror assembly. This assembly is composed of 18 hexagonal segments of gold-coated beryllium which combines to create a near-infrared light-collecting area of about 80 square fe

James Webb Space Telescope (JWST) - Artist view - The James Webb Space Telescope (JWST) - Artist view: The James Webb Space Telescope (JWST) will replace the Hubble Space Telescope in 2018. The James Webb Space Telescope (JWST) is a large, infrared-optimized space telescope scheduled for launch in 2018. Equipped with a large mirror 6.5 meters (21.3 feet) in diameter, it will find the first galaxies that formed in the early Universe, connecting the Big Bang to our own Milky Way Galaxy and will reside in an orbit about 1.5 million km (1 million miles) from the Earth - The shaded side of the James Webb Space Telescope (JWST) as it may appear later this decade when it is observing from the Earth-Sun L2 point about 930 thousand miles from the Earth. Part of the Milky Way can be seen reflected in the 21-foot diameter mirror assembly. This assembly is composed of 18 hexagonal segments of gold-coated beryllium which combines to create a near-infrared light-collecting area of about 80 square fe

Walter B Myers

PIX4645827

Open cluster NGC 6939 and galaxy NGC 6946 - Spiral galaxy NGC 6946 and open cluster NGC 6939 - The spiral galaxy NGC 6946 is located about 10 million years ago - light in Cephee. Many star formations are observed here. The cluster of stars NGC 6939, on the right, belongs to our galaxy. Spiral Galaxy NGC 6946 and Open Cluster NGC 6939 are located about 2 degrees southwest of Eta Cepheus. 6946 is a 9.7 magnitude spiral galaxy that was discovered by William Herschel on September 9, 1798 and is about 10 arc minutes in diameter. It is a relatively close galaxy at a distance of about 10 million light years, and was once suspected by Edwin Hubble of being a member of the Local Group of galaxies that includes the Milky Way, but today it is not believed to be a member. Because we are looking at it through the plane of our own galaxy, it is highly obscured by dust. NGC 6946 is sometimes called the Fireworks galaxy because of the number of supernovae that have been discovered there and the galaxy

Open cluster NGC 6939 and galaxy NGC 6946 - Spiral galaxy NGC 6946 and open cluster NGC 6939 - The spiral galaxy NGC 6946 is located about 10 million years ago - light in Cephee. Many star formations are observed here. The cluster of stars NGC 6939, on the right, belongs to our galaxy. Spiral Galaxy NGC 6946 and Open Cluster NGC 6939 are located about 2 degrees southwest of Eta Cepheus. 6946 is a 9.7 magnitude spiral galaxy that was discovered by William Herschel on September 9, 1798 and is about 10 arc minutes in diameter. It is a relatively close galaxy at a distance of about 10 million light years, and was once suspected by Edwin Hubble of being a member of the Local Group of galaxies that includes the Milky Way, but today it is not believed to be a member. Because we are looking at it through the plane of our own galaxy, it is highly obscured by dust. NGC 6946 is sometimes called the Fireworks galaxy because of the number of supernovae that have been discovered there and the galaxy

Jerry Lodriguss

PIX4568549

James Webb Space Telescope Mirrors (JWST) - Testing of the JWST's mirrors: Six of the 18 JWST (James Webb Space Telescope) mirrors seen at Nasa's Marshall Space Center. These mirrors will be tested there to ensure they will withstand the extreme temperatures of space vacuum. The JWST will replace the Hubble Space Telescope in 2018. Team with a 6.5 m mirror, he will observe the universe mainly in infrared - Six of the 18 James Webb Space Telescope mirror segments are being moved into the X-ray and Cryogenic Facility, or XRCF, at Nasa's Marshall Space Flight Center in Huntsville, Ala., to eventually experience temperatures dipping to a chilling -414 degrees Fahrenheit to ensure they can withstand the extreme space environments. The test chamber takes approximately five days to cool a mirror segment to cryogenic temperatures. Marshall's X-ray & Cryogenic Facility is the world's largest X-ray telescope test facility and a unique, cryogenic, clean room optical test location. The James Webb

James Webb Space Telescope Mirrors (JWST) - Testing of the JWST's mirrors: Six of the 18 JWST (James Webb Space Telescope) mirrors seen at Nasa's Marshall Space Center. These mirrors will be tested there to ensure they will withstand the extreme temperatures of space vacuum. The JWST will replace the Hubble Space Telescope in 2018. Team with a 6.5 m mirror, he will observe the universe mainly in infrared - Six of the 18 James Webb Space Telescope mirror segments are being moved into the X-ray and Cryogenic Facility, or XRCF, at Nasa's Marshall Space Flight Center in Huntsville, Ala., to eventually experience temperatures dipping to a chilling -414 degrees Fahrenheit to ensure they can withstand the extreme space environments. The test chamber takes approximately five days to cool a mirror segment to cryogenic temperatures. Marshall's X-ray & Cryogenic Facility is the world's largest X-ray telescope test facility and a unique, cryogenic, clean room optical test location. The James Webb

PIX4645800

Telescope E - ELT - Artist's view - European Extremely Large Telescope - Artwork - Artist's view of the E - ELT (European Extremely Large Telescope), a telescope project measuring 40 metres in diameter. Its main mirror will consist of 906 hexagonal mirrors assembled together, and its total surface will be equal to that of a football field. A new architectural concept drawing of Eso's planned European Extremely Large Telescope (E - ELT) shows the telescope at work, with its dome open and its record - setting 40 - metre - class primary mirror pointed to the sky. In this illustration, clouds float over the valley overlooked by the E - Elt's summit. The comparatively tiny pickup truck parked at the base of the E - ELT helps to give a sense of the scale of this massive telescope. The E - ELT dome will be similar in size to a football stadium, with a diameter at its base of over 100 m and a height of over 80 m. Scheduled to begin operations early in the next decade, the E - ELT will help tra

Telescope E - ELT - Artist's view - European Extremely Large Telescope - Artwork - Artist's view of the E - ELT (European Extremely Large Telescope), a telescope project measuring 40 metres in diameter. Its main mirror will consist of 906 hexagonal mirrors assembled together, and its total surface will be equal to that of a football field. A new architectural concept drawing of Eso's planned European Extremely Large Telescope (E - ELT) shows the telescope at work, with its dome open and its record - setting 40 - metre - class primary mirror pointed to the sky. In this illustration, clouds float over the valley overlooked by the E - Elt's summit. The comparatively tiny pickup truck parked at the base of the E - ELT helps to give a sense of the scale of this massive telescope. The E - ELT dome will be similar in size to a football stadium, with a diameter at its base of over 100 m and a height of over 80 m. Scheduled to begin operations early in the next decade, the E - ELT will help tra

PIX4653092

Cepheide RS Puppis - Cepheides are very bright variable stars that serve as cosmic beacons to measure the distance of nearby galaxies. Their pulse period is measured and their absolute luminosite is calculated. By comparing the result to their apparent luminosite in the sky, they can be calculated accurately. Here, the space telescope photographed one of the brightest cepheids, RS Puppis (in the center of the image), located 6500 years - light in the southern constellation of the Puppi. The bright southern hemisphere star RS Puppis, at the center of the image, is swaddled in a gossamer cocoon of reflective dust illuminated by the glittering star. The super star is ten times more massive than our Sun and 200 times larger. RS Puppis rhythmically brightens and dims over a six - week cycle. It is one of the most luminous in the class of so - called Cepheid variable stars. Its average intrinsic brightness is 15,000 times greater than our Sun's luminosity. The nebula flickers in brightness a

Cepheide RS Puppis - Cepheides are very bright variable stars that serve as cosmic beacons to measure the distance of nearby galaxies. Their pulse period is measured and their absolute luminosite is calculated. By comparing the result to their apparent luminosite in the sky, they can be calculated accurately. Here, the space telescope photographed one of the brightest cepheids, RS Puppis (in the center of the image), located 6500 years - light in the southern constellation of the Puppi. The bright southern hemisphere star RS Puppis, at the center of the image, is swaddled in a gossamer cocoon of reflective dust illuminated by the glittering star. The super star is ten times more massive than our Sun and 200 times larger. RS Puppis rhythmically brightens and dims over a six - week cycle. It is one of the most luminous in the class of so - called Cepheid variable stars. Its average intrinsic brightness is 15,000 times greater than our Sun's luminosity. The nebula flickers in brightness a

PIX4572188

Spiral Galaxy M33 in the Triangle - Spiral galaxy M33 in Triangulum - The Galaxy of the Triangle (M33, NGC598) is located about 2 million years ago - light from Earth. It belongs to the local group, just like our galaxy or Andromede galaxy. In red, the star-forming regions appear, especially at the top left NGC 604 one of the largest and most active star-forming regions. It extends over 150 years of light. Image obtained from the Isaac Newton telescope of La Palma. M33 is a large, almost face - on spiral galaxy about 2.5 million light years distant in the northern constellation of Triangulum. It is a member of the 'Local Group' of galaxies, which is dominated by the Milky Way and M31. Like M31, M33 is approaching the Milky Way at a velocity of about 180km/s. Although the total light M33 galaxy is that of a star of magnitude 5.3, its large diameter makes it hard to see. However, despite its low surface brightness, this galaxy was among the first to be identified as a 'spiral nebula' by

Spiral Galaxy M33 in the Triangle - Spiral galaxy M33 in Triangulum - The Galaxy of the Triangle (M33, NGC598) is located about 2 million years ago - light from Earth. It belongs to the local group, just like our galaxy or Andromede galaxy. In red, the star-forming regions appear, especially at the top left NGC 604 one of the largest and most active star-forming regions. It extends over 150 years of light. Image obtained from the Isaac Newton telescope of La Palma. M33 is a large, almost face - on spiral galaxy about 2.5 million light years distant in the northern constellation of Triangulum. It is a member of the 'Local Group' of galaxies, which is dominated by the Milky Way and M31. Like M31, M33 is approaching the Milky Way at a velocity of about 180km/s. Although the total light M33 galaxy is that of a star of magnitude 5.3, its large diameter makes it hard to see. However, despite its low surface brightness, this galaxy was among the first to be identified as a 'spiral nebula' by

PIX4609292

Centaurus A elliptical galaxy (NGC 5128) in the Centaurus - Galaxy Centaurus A (NGC 5128) - The galaxy NGC 5128 is located about 13 million years away from Earth. This Giant Galaxy is a powerful radio source known as Centaurus A. It is an active galaxy whose energy comes from a supermassive black hole. This image obtained by the Kueyen telescope of the VLT in Chile on 1 February 2000 shows the star flames that occur in the dark band of the galaxy. Centaurus A is one of the foremost examples of a radio - loud active galactic nucleus (AGN). On images obtained at optical wavelengths, thick dust layers almost completely obscure the galaxy's centre. Until 1949, NGC 5128 was thought to be a strange object in the Milky Way, but it was then identified as a powerful radio galaxy and designated Centaurus A. The distance is about 10 - 13 million light - years (3 - 4 Mpc) and the apparent visual magnitude is about 8, or 5 times too faint to be seen with the unaided eye. There is strong evidence th

Centaurus A elliptical galaxy (NGC 5128) in the Centaurus - Galaxy Centaurus A (NGC 5128) - The galaxy NGC 5128 is located about 13 million years away from Earth. This Giant Galaxy is a powerful radio source known as Centaurus A. It is an active galaxy whose energy comes from a supermassive black hole. This image obtained by the Kueyen telescope of the VLT in Chile on 1 February 2000 shows the star flames that occur in the dark band of the galaxy. Centaurus A is one of the foremost examples of a radio - loud active galactic nucleus (AGN). On images obtained at optical wavelengths, thick dust layers almost completely obscure the galaxy's centre. Until 1949, NGC 5128 was thought to be a strange object in the Milky Way, but it was then identified as a powerful radio galaxy and designated Centaurus A. The distance is about 10 - 13 million light - years (3 - 4 Mpc) and the apparent visual magnitude is about 8, or 5 times too faint to be seen with the unaided eye. There is strong evidence th

PIX4612179

Spiral galaxy M74 in Pisces - Spiral galaxy M74 in Pisces - Image of the spiral galaxy M74 (NGC 628) obtained by the Hubble space telescope in 2003 and 2005. This galaxy is about 80,000 light years and is approximately 30 million light years apart. This image shows in detail the arms of this galaxy or nebulae and clusters of young stars appear in numbers. NASA/ESA Hubble Space Telescope image of the nearby spiral galaxy M74 (NGC 628), is a composite of Advanced Camera for Surveys' data taken in 2003 and 2005. A small segment of this image used data from the Canada - France - Hawaii Telescope and the Gemini Observatory to fill in a region that Hubble did not image. M74 is located roughly 32 million light - years away in the direction of the constellation Pisces, the Fish. It is the dominant member of a small group of about half a dozen galaxies, the M74 galaxy group. In its entirety, it is estimated that M74 is home to about 100 billion stars, making it slightly smaller than our Milky W

Spiral galaxy M74 in Pisces - Spiral galaxy M74 in Pisces - Image of the spiral galaxy M74 (NGC 628) obtained by the Hubble space telescope in 2003 and 2005. This galaxy is about 80,000 light years and is approximately 30 million light years apart. This image shows in detail the arms of this galaxy or nebulae and clusters of young stars appear in numbers. NASA/ESA Hubble Space Telescope image of the nearby spiral galaxy M74 (NGC 628), is a composite of Advanced Camera for Surveys' data taken in 2003 and 2005. A small segment of this image used data from the Canada - France - Hawaii Telescope and the Gemini Observatory to fill in a region that Hubble did not image. M74 is located roughly 32 million light - years away in the direction of the constellation Pisces, the Fish. It is the dominant member of a small group of about half a dozen galaxies, the M74 galaxy group. In its entirety, it is estimated that M74 is home to about 100 billion stars, making it slightly smaller than our Milky W

PIX4609405

Remains of the Supernova of Vails - The Vela supernova remnant: Nearly 12,000 years ago, a massive star exploded in the constellation of Vails. The star reaches the end of life and expels its material to become a small star only a few kilometres in diameter. This stellar corpse is a neutron star, the pulsar of Voiles, barely visible in the image. The gas shell that surrounds it today extends over more than 100 light years. Mosaic of 117 images - Approximately 11,000 to 12,000 years ago a massive star exploded in the southern constellation of Vela. The matter ejected by the supernova scattered the contents of the star into the surrounding interstellar medium creating shock fronts of multimillion degree gas and high energy particles. The heated matter produces brilliant visible light as well as radio and x-ray emission which will continue for thousands of years until the entire remnant of the dying star completely dissipates into space. Supernovas enrich the surrounding interstellar medi

Remains of the Supernova of Vails - The Vela supernova remnant: Nearly 12,000 years ago, a massive star exploded in the constellation of Vails. The star reaches the end of life and expels its material to become a small star only a few kilometres in diameter. This stellar corpse is a neutron star, the pulsar of Voiles, barely visible in the image. The gas shell that surrounds it today extends over more than 100 light years. Mosaic of 117 images - Approximately 11,000 to 12,000 years ago a massive star exploded in the southern constellation of Vela. The matter ejected by the supernova scattered the contents of the star into the surrounding interstellar medium creating shock fronts of multimillion degree gas and high energy particles. The heated matter produces brilliant visible light as well as radio and x-ray emission which will continue for thousands of years until the entire remnant of the dying star completely dissipates into space. Supernovas enrich the surrounding interstellar medi

R. Gendler

PIX4626466

Spiral galaxy NGC 7331 in Pegase - Spiral galaxy NGC 7331 in Pegasus: The galaxy NGC 7331 is located about 45 million light years away from Earth. Image obtained with the Hubble Space Telescope. NGC 7331 is located about 45 million light-years away in the constellation of Pegasus (The Winged Horse). Facing us partially edge-on, the galaxy showcases it's beautiful arms which swirl like a whirlpool around its bright central region. Astronomers took this image using Hubble's Wide Field Camera 3 (WFC3), as they were observing an extraordinary exploding star - a supernova - which can still be faintly seen as a tiny red dot near the galaxy's central yellow core. Named SN2014C, it rapidly evolved from a supernova containing very little Hydrogen to one that is Hydrogen-rich - in just one year. This rarely observed metamorphosis was luminous at high energies and provides unique insight into the poorly understood final phases of massive stars. NGC 7331 is similar in size, shape, and mass to the

Spiral galaxy NGC 7331 in Pegase - Spiral galaxy NGC 7331 in Pegasus: The galaxy NGC 7331 is located about 45 million light years away from Earth. Image obtained with the Hubble Space Telescope. NGC 7331 is located about 45 million light-years away in the constellation of Pegasus (The Winged Horse). Facing us partially edge-on, the galaxy showcases it's beautiful arms which swirl like a whirlpool around its bright central region. Astronomers took this image using Hubble's Wide Field Camera 3 (WFC3), as they were observing an extraordinary exploding star - a supernova - which can still be faintly seen as a tiny red dot near the galaxy's central yellow core. Named SN2014C, it rapidly evolved from a supernova containing very little Hydrogen to one that is Hydrogen-rich - in just one year. This rarely observed metamorphosis was luminous at high energies and provides unique insight into the poorly understood final phases of massive stars. NGC 7331 is similar in size, shape, and mass to the

PIX4613167

Constellation of Big Bear - Constellation of Ursa Major - The constellation of Big Bear with the constellations of Hunting Dogs and Little Lion. Ursa Major is the third largest constellation in the sky but is not seen by skywatchers in the far southern hemisphere. However, it is the most recognisable of all constellations for those who can see it, mainly because of the asterism formed by the seven brightest stars. This is known as the Big Dipper in the USA, the Plough in Britain, various kinds of carts in Europe and a range of other objects in other cultures. Not surprisingly the constellation as a whole has a rich mythology associated with it, with many peoples projecting their stories among these beautiful stars. Greatly abbreviated, one ancient Greek version has Zeus romancing Callisto. His wife Hera changed Callisto into a bear out of jealousy. Hera's son Arcus found Callisto (the bear) by chance in the forest and was about to kill her, so to save her, Zeus turned Arcus into a smal

Constellation of Big Bear - Constellation of Ursa Major - The constellation of Big Bear with the constellations of Hunting Dogs and Little Lion. Ursa Major is the third largest constellation in the sky but is not seen by skywatchers in the far southern hemisphere. However, it is the most recognisable of all constellations for those who can see it, mainly because of the asterism formed by the seven brightest stars. This is known as the Big Dipper in the USA, the Plough in Britain, various kinds of carts in Europe and a range of other objects in other cultures. Not surprisingly the constellation as a whole has a rich mythology associated with it, with many peoples projecting their stories among these beautiful stars. Greatly abbreviated, one ancient Greek version has Zeus romancing Callisto. His wife Hera changed Callisto into a bear out of jealousy. Hera's son Arcus found Callisto (the bear) by chance in the forest and was about to kill her, so to save her, Zeus turned Arcus into a smal

PIX4591218

Spiral galaxy M101 in the Great Bear - Spiral galaxy M101 in Ursa Major - The galaxy M101 (NGC 5457) is located about 27 million years away from Earth. It spans more than 170,000 light years, almost double the size of our galaxy. We think that of the trillion stars in it, 100 billion stars could be similar to our Sun. Composite image obtained from 51 different clicks made by the Hubble space telescope from March 1994 to January 2003 and from ground photos at Kitt Peak and CFHT in Hawaii. Spiral galaxy M101 is a beautiful, large, face - on spiral galaxy located about 27 million light - years away in the constellation Ursa Major. This galaxy's portrait is actually composed of 51 individual Hubble exposures, in addition to elements from images from ground - based photos. The giant spiral disk of stars, dust, and gas is 170,000 light - years across or almost twice the diameter of our galaxy, the Milky Way. M101 is estimated to contain at least one trillion stars. Approximately 100 billion

Spiral galaxy M101 in the Great Bear - Spiral galaxy M101 in Ursa Major - The galaxy M101 (NGC 5457) is located about 27 million years away from Earth. It spans more than 170,000 light years, almost double the size of our galaxy. We think that of the trillion stars in it, 100 billion stars could be similar to our Sun. Composite image obtained from 51 different clicks made by the Hubble space telescope from March 1994 to January 2003 and from ground photos at Kitt Peak and CFHT in Hawaii. Spiral galaxy M101 is a beautiful, large, face - on spiral galaxy located about 27 million light - years away in the constellation Ursa Major. This galaxy's portrait is actually composed of 51 individual Hubble exposures, in addition to elements from images from ground - based photos. The giant spiral disk of stars, dust, and gas is 170,000 light - years across or almost twice the diameter of our galaxy, the Milky Way. M101 is estimated to contain at least one trillion stars. Approximately 100 billion

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Barree spiral galaxy NGC 3259 in the Great Bear - Barred spiral galaxy NGC 3259 in Ursa Major - The barree spiral galaxy NGC 3259 is located about 110 million years away - light from Earth. This galaxy houses a black hole in its heart as well as large zones of star formation in its arms. This image was taken by the Hubble Space Telescope (HST). This classic shot of a galaxy in the constellation of Ursa Major was taken by the NASA/ESA Hubble Space Telescope. NGC 3259 is a bright barred spiral galaxy located approximately 110 million light - years from Earth. Being a fully - formed active galaxy, its bright central bulge hosts a supermassive black hole, whose huge appetite for matter explains the high luminosity of the galaxy's core: as it devours its surroundings, the black hole emits intense radiation across the whole electromagnetic spectrum, including in visible light. The beautiful spiral arms of the galaxy are not left out either as they contain dark lanes of dust and gas, ideal sp

Barree spiral galaxy NGC 3259 in the Great Bear - Barred spiral galaxy NGC 3259 in Ursa Major - The barree spiral galaxy NGC 3259 is located about 110 million years away - light from Earth. This galaxy houses a black hole in its heart as well as large zones of star formation in its arms. This image was taken by the Hubble Space Telescope (HST). This classic shot of a galaxy in the constellation of Ursa Major was taken by the NASA/ESA Hubble Space Telescope. NGC 3259 is a bright barred spiral galaxy located approximately 110 million light - years from Earth. Being a fully - formed active galaxy, its bright central bulge hosts a supermassive black hole, whose huge appetite for matter explains the high luminosity of the galaxy's core: as it devours its surroundings, the black hole emits intense radiation across the whole electromagnetic spectrum, including in visible light. The beautiful spiral arms of the galaxy are not left out either as they contain dark lanes of dust and gas, ideal sp

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Dwarf galaxy Holmberg IX in the Great Bear - Dwarf galaxy Holmberg IX in Ursa Major - The dwarf galaxy Holmberg IX is located 12 million years - light from Earth in the constellation of the Great Bear, just above the spiral galaxy M81. Of the 20,000 stars visible on this image obtained by the Hubble space telescope, more than 90% are young stars aged between 10 and 200 million years. The proximity of other galaxies, including M81, is believed to be at the origin of this recent star formation. This loose collection of stars is actually a dwarf irregular galaxy, called Holmberg IX. It resides just off the outer edge of M81, a large spiral galaxy in Ursa Major. This image was taken with Hubble's Advanced Camera for Surveys in early 2006. Holmberg IX is of the so - called Magellanic type of galaxy, as its size and irregularity in structure are similar to the Small Magellanic Cloud, a neighbour to our own Milky Way. It is suspected that the dwarf galaxy was created as a result of a galactic

Dwarf galaxy Holmberg IX in the Great Bear - Dwarf galaxy Holmberg IX in Ursa Major - The dwarf galaxy Holmberg IX is located 12 million years - light from Earth in the constellation of the Great Bear, just above the spiral galaxy M81. Of the 20,000 stars visible on this image obtained by the Hubble space telescope, more than 90% are young stars aged between 10 and 200 million years. The proximity of other galaxies, including M81, is believed to be at the origin of this recent star formation. This loose collection of stars is actually a dwarf irregular galaxy, called Holmberg IX. It resides just off the outer edge of M81, a large spiral galaxy in Ursa Major. This image was taken with Hubble's Advanced Camera for Surveys in early 2006. Holmberg IX is of the so - called Magellanic type of galaxy, as its size and irregularity in structure are similar to the Small Magellanic Cloud, a neighbour to our own Milky Way. It is suspected that the dwarf galaxy was created as a result of a galactic

PIX4613880

Constellation of Big Bear - Constellation of Ursa Major - The constellation of Big Bear with the constellations of Hunting Dogs and Little Lion. Ursa Major is the third largest constellation in the sky but is not seen by skywatchers in the far southern hemisphere. However, it is the most recognisable of all constellations for those who can see it, mainly because of the asterism formed by the seven brightest stars. This is known as the Big Dipper in the USA, the Plough in Britain, various kinds of carts in Europe and a range of other objects in other cultures. Not surprisingly the constellation as a whole has a rich mythology associated with it, with many peoples projecting their stories among these beautiful stars. Greatly abbreviated, one ancient Greek version has Zeus romancing Callisto. His wife Hera changed Callisto into a bear out of jealousy. Hera's son Arcus found Callisto (the bear) by chance in the forest and was about to kill her, so to save her, Zeus turned Arcus into a smal

Constellation of Big Bear - Constellation of Ursa Major - The constellation of Big Bear with the constellations of Hunting Dogs and Little Lion. Ursa Major is the third largest constellation in the sky but is not seen by skywatchers in the far southern hemisphere. However, it is the most recognisable of all constellations for those who can see it, mainly because of the asterism formed by the seven brightest stars. This is known as the Big Dipper in the USA, the Plough in Britain, various kinds of carts in Europe and a range of other objects in other cultures. Not surprisingly the constellation as a whole has a rich mythology associated with it, with many peoples projecting their stories among these beautiful stars. Greatly abbreviated, one ancient Greek version has Zeus romancing Callisto. His wife Hera changed Callisto into a bear out of jealousy. Hera's son Arcus found Callisto (the bear) by chance in the forest and was about to kill her, so to save her, Zeus turned Arcus into a smal

PIX4591228

Centaurus A elliptical galaxy (NGC 5128) in Centaurus - Galaxy Centaurus A (NGC 5128) - The galaxy NGC 5128 is located about 13 million light years away from Earth in the southern constellation of Centaurus. A broad dark band crosses it in the middle, a probable vestige of a collision with a spiral galaxy. This Giant Galaxy is a powerful radio source known as Centaurus A. It is an active galaxy whose energy comes from a supermassive black hole. The green dot visible in the dust strip is a supernova, the supernova 1986g. It appears green because the red filter image that made this trichromy image was only taken a year after the event and the supernova had weakened. Image obtained from the 3.9m telescope of Siding Spring, Australia. Centaurus A is a most unusual galaxy. The circular, uniformly bright portion is composed of several thousand million stars, most of them old and yellowish. The galaxy is girded by a dense dust lane which obscures and reddens the light of stars behind it. Some

Centaurus A elliptical galaxy (NGC 5128) in Centaurus - Galaxy Centaurus A (NGC 5128) - The galaxy NGC 5128 is located about 13 million light years away from Earth in the southern constellation of Centaurus. A broad dark band crosses it in the middle, a probable vestige of a collision with a spiral galaxy. This Giant Galaxy is a powerful radio source known as Centaurus A. It is an active galaxy whose energy comes from a supermassive black hole. The green dot visible in the dust strip is a supernova, the supernova 1986g. It appears green because the red filter image that made this trichromy image was only taken a year after the event and the supernova had weakened. Image obtained from the 3.9m telescope of Siding Spring, Australia. Centaurus A is a most unusual galaxy. The circular, uniformly bright portion is composed of several thousand million stars, most of them old and yellowish. The galaxy is girded by a dense dust lane which obscures and reddens the light of stars behind it. Some

PIX4612278

Star field in the constellation Sagittarius - Scattered stars in Sagittarius: Stars in Sagittarius seen by the space telescope Hubble. This stunning image, captured by the NASA/ESA Hubble Space Telescope's Advanced Camera for Surveys (ACS), shows part of the sky in the constellation of Sagittarius (The Archer). The region is rendered in exquisite detail - deep red and bright blue stars are scattered across the frame, set against a background of thousands of more distant stars and galaxies. Two features are particularly striking: the colours of the stars, and the dramatic crosses that burst from the centres of the brightest bodies. While some of the colours in this frame have been enhanced and tweaked during the process of creating the image from the observational data, different stars do indeed glow in different colours. Stars differ in colour according to their surface temperature: very hot stars are blue or white, while cooler stars are redder. They may be cooler because they are sma

Star field in the constellation Sagittarius - Scattered stars in Sagittarius: Stars in Sagittarius seen by the space telescope Hubble. This stunning image, captured by the NASA/ESA Hubble Space Telescope's Advanced Camera for Surveys (ACS), shows part of the sky in the constellation of Sagittarius (The Archer). The region is rendered in exquisite detail - deep red and bright blue stars are scattered across the frame, set against a background of thousands of more distant stars and galaxies. Two features are particularly striking: the colours of the stars, and the dramatic crosses that burst from the centres of the brightest bodies. While some of the colours in this frame have been enhanced and tweaked during the process of creating the image from the observational data, different stars do indeed glow in different colours. Stars differ in colour according to their surface temperature: very hot stars are blue or white, while cooler stars are redder. They may be cooler because they are sma

PIX4572253

Barree spiral galaxy NGC 4394 in Berenice's Hair - Barred spiral galaxy NGC 4394 in Coma Berenices: NGC 4394 is a barree spiral galaxy located in the Virgin's cluster about 55 million light years from Earth. Image obtained by the Hubble Space Telescope (HST) - Discovered in 1784 by the German-British astronomer William Herschel, NGC 4394 is a barred spiral galaxy situated about 55 million light-years from Earth. The galaxy lies in the constellation of Coma Berenices (Berenice's Hair), and is considered to be a member of the Virgo Cluster. NGC 4394 is the archetypal barred spiral galaxy, with bright spiral arms emerging from the ends of a bar that cuts through the galaxy's central bulge. These arms are peppered with young blue stars, dark filaments of cosmic dust, and bright, fuzzy regions of active star formation. At the centre of NGC 4394 lies a region of ionised gas known as a LINER. Liners are active regions that display a characteristic set of emission lines in their spectra- mostl

Barree spiral galaxy NGC 4394 in Berenice's Hair - Barred spiral galaxy NGC 4394 in Coma Berenices: NGC 4394 is a barree spiral galaxy located in the Virgin's cluster about 55 million light years from Earth. Image obtained by the Hubble Space Telescope (HST) - Discovered in 1784 by the German-British astronomer William Herschel, NGC 4394 is a barred spiral galaxy situated about 55 million light-years from Earth. The galaxy lies in the constellation of Coma Berenices (Berenice's Hair), and is considered to be a member of the Virgo Cluster. NGC 4394 is the archetypal barred spiral galaxy, with bright spiral arms emerging from the ends of a bar that cuts through the galaxy's central bulge. These arms are peppered with young blue stars, dark filaments of cosmic dust, and bright, fuzzy regions of active star formation. At the centre of NGC 4394 lies a region of ionised gas known as a LINER. Liners are active regions that display a characteristic set of emission lines in their spectra- mostl

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Irregular Galaxy of the Little Magellan Cloud (NGC 292) - The Small Magellanic Cloud - The galaxy of the Little Magellan Cloud is about 240,000 light years from Earth in the southern constellation of Toucan. It's one of the closest galaxies of the Lactee Way. Infrared image obtained by Spitzer space telescope. This infrared portrait of the Small Magellanic Cloud, taken by Nasa's Spitzer Space Telescope, reveals the stars and dust in this galaxy as never seen before. The Small Magellanic Cloud is a nearby satellite galaxy to our Milky Way galaxy, approximately 200,000 light - years away. The image shows the main body of the Small Magellanic Cloud, which is comprised of the “” bar”” on the left and a “” wing”” extending to the right. The bar contains both old stars (in blue) and young stars lighting up their natal dust (green/red). The wing mainly contains young stars. In addition, the image contains a galactic globular cluster in the lower left (blue cluster of stars) and emission from

Irregular Galaxy of the Little Magellan Cloud (NGC 292) - The Small Magellanic Cloud - The galaxy of the Little Magellan Cloud is about 240,000 light years from Earth in the southern constellation of Toucan. It's one of the closest galaxies of the Lactee Way. Infrared image obtained by Spitzer space telescope. This infrared portrait of the Small Magellanic Cloud, taken by Nasa's Spitzer Space Telescope, reveals the stars and dust in this galaxy as never seen before. The Small Magellanic Cloud is a nearby satellite galaxy to our Milky Way galaxy, approximately 200,000 light - years away. The image shows the main body of the Small Magellanic Cloud, which is comprised of the “” bar”” on the left and a “” wing”” extending to the right. The bar contains both old stars (in blue) and young stars lighting up their natal dust (green/red). The wing mainly contains young stars. In addition, the image contains a galactic globular cluster in the lower left (blue cluster of stars) and emission from

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Spiral galaxy NGC 2683 in Lynx - Spiral galaxy NGC 2683 in Lynx - Spiral galaxy NGC 2683 distant about 16 million years - light in the constellation Lynx. Image obtained by the Hubble Space Telescope (HST). NGC 2683 is a spiral galaxy seen almost edge - on, giving it the shape of a classic science fiction spaceship. The delicate dusty lanes of the spiral arms are silhouetted against the golden haze of the galaxy's core. In addition, brilliant clusters of young blue stars shine scattered throughout the disc, mapping the galaxy's star - forming regions. Perhaps surprisingly, side - on views of galaxies like this one do not prevent astronomers from deducing their structures. Studies of the properties of the light coming from NGC 2683 suggest that this is a barred spiral galaxy, even though the angle we see it at does not let us see this directly. NGC 2683, discovered on 5 February 1788 by the famous astronomer William Herschel, lies in the Northern constellation of Lynx. A constellation n

Spiral galaxy NGC 2683 in Lynx - Spiral galaxy NGC 2683 in Lynx - Spiral galaxy NGC 2683 distant about 16 million years - light in the constellation Lynx. Image obtained by the Hubble Space Telescope (HST). NGC 2683 is a spiral galaxy seen almost edge - on, giving it the shape of a classic science fiction spaceship. The delicate dusty lanes of the spiral arms are silhouetted against the golden haze of the galaxy's core. In addition, brilliant clusters of young blue stars shine scattered throughout the disc, mapping the galaxy's star - forming regions. Perhaps surprisingly, side - on views of galaxies like this one do not prevent astronomers from deducing their structures. Studies of the properties of the light coming from NGC 2683 suggest that this is a barred spiral galaxy, even though the angle we see it at does not let us see this directly. NGC 2683, discovered on 5 February 1788 by the famous astronomer William Herschel, lies in the Northern constellation of Lynx. A constellation n

PIX4610165

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