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Spiral galaxy NGC 3982 in the Great Bear - Spiral galaxy NGC 3982 in Ursa Major - The spiral galaxy NGC 3982 is located about 68 million years ago - light from Earth. It extends over about 30,000 light years. It is a spiral galaxy that houses a black hole in its heart and large zones of star formation in its arms. This image was taken by the Hubble Space Telescope (HST). This face - on spiral galaxy, called NGC 3982, is striking for its rich tapestry of star birth, along with its winding arms. The arms are lined with pink star - forming regions of glowing hydrogen, newborn blue star clusters, and obscuring dust lanes that provide the raw material for future generations of stars. The bright nucleus is home to an older population of stars, which grow ever more densely packed towards the center. NGC 3982 is located about 68 million light - years away in the constellation Ursa Major. The galaxy spans about 30,000 light - years, one - third of the size of our Milky Way galaxy. This color im

Spiral galaxy NGC 3982 in the Great Bear - Spiral galaxy NGC 3982 in Ursa Major - The spiral galaxy NGC 3982 is located about 68 million years ago - light from Earth. It extends over about 30,000 light years. It is a spiral galaxy that houses a black hole in its heart and large zones of star formation in its arms. This image was taken by the Hubble Space Telescope (HST). This face - on spiral galaxy, called NGC 3982, is striking for its rich tapestry of star birth, along with its winding arms. The arms are lined with pink star - forming regions of glowing hydrogen, newborn blue star clusters, and obscuring dust lanes that provide the raw material for future generations of stars. The bright nucleus is home to an older population of stars, which grow ever more densely packed towards the center. NGC 3982 is located about 68 million light - years away in the constellation Ursa Major. The galaxy spans about 30,000 light - years, one - third of the size of our Milky Way galaxy. This color im

PIX4610993

Orion Nebula - M42 - M43 - The Great Nebula in Orion - Located 1500 years - light, the Orion Nebula is the closest region to the formation of stars of the Sun. Image obtained from the 2.2 meter MPG/ESO telescope of the La Silla Observatory. The Orion Nebula is the greatest of all HII clouds visible from our location within the Milky Way. With a gaseous repository of 10,000 suns, and illuminated by a cluster of hot young stars, the clouds of M42 glow with fantastic colors and shapes, giving us a birds eye view of one of the greatest star forming nurseries in our part of the galaxy. At a distance of 1500 light years, the Orion nebula is the nearest star - forming region to the Sun. This new image of the Orion Nebula was captured using the Wide Field Imager camera on the MPG/ESO 2.2 - metre telescope at the La Silla Observatory, Chile. This image is a composite of several exposures taken through a total of five different filters. Light that passed through a red filter, as well as light fr

Orion Nebula - M42 - M43 - The Great Nebula in Orion - Located 1500 years - light, the Orion Nebula is the closest region to the formation of stars of the Sun. Image obtained from the 2.2 meter MPG/ESO telescope of the La Silla Observatory. The Orion Nebula is the greatest of all HII clouds visible from our location within the Milky Way. With a gaseous repository of 10,000 suns, and illuminated by a cluster of hot young stars, the clouds of M42 glow with fantastic colors and shapes, giving us a birds eye view of one of the greatest star forming nurseries in our part of the galaxy. At a distance of 1500 light years, the Orion nebula is the nearest star - forming region to the Sun. This new image of the Orion Nebula was captured using the Wide Field Imager camera on the MPG/ESO 2.2 - metre telescope at the La Silla Observatory, Chile. This image is a composite of several exposures taken through a total of five different filters. Light that passed through a red filter, as well as light fr

PIX4617824

Clubs R136 in the Tarantula Nebula (NGC 2070) - Central region of the Tarantula Nebula - The Tarantula Nebula (or 30 Bream) is the largest star-forming region of the Magellan Cloud. It is located 170,000 light years ago in the constellation Dorado (southern hemisphere). In the center of this nebula, the open cluster of R136 stars (on the right), clusters of young, hot and massive stars, age barely 5 million years. Image obtained by the Hubble Space Telescope in October 2009. The Tarantula is situated 170,000 light - years away in the Large Magellanic Cloud (LMC) in the southern sky and is clearly visible to the naked eye as a large milky patch. To thr right of the image there is a huge cluster of very hot stars called R136. The stars in R136 are also among the most massive stars we know. R136 is also a very young cluster, its oldest stars being 'just' 5 million years old or so. Its smallest stars, however, are still forming. The image, taken in ultraviolet, visible, and red light by Hu

Clubs R136 in the Tarantula Nebula (NGC 2070) - Central region of the Tarantula Nebula - The Tarantula Nebula (or 30 Bream) is the largest star-forming region of the Magellan Cloud. It is located 170,000 light years ago in the constellation Dorado (southern hemisphere). In the center of this nebula, the open cluster of R136 stars (on the right), clusters of young, hot and massive stars, age barely 5 million years. Image obtained by the Hubble Space Telescope in October 2009. The Tarantula is situated 170,000 light - years away in the Large Magellanic Cloud (LMC) in the southern sky and is clearly visible to the naked eye as a large milky patch. To thr right of the image there is a huge cluster of very hot stars called R136. The stars in R136 are also among the most massive stars we know. R136 is also a very young cluster, its oldest stars being 'just' 5 million years old or so. Its smallest stars, however, are still forming. The image, taken in ultraviolet, visible, and red light by Hu

PIX4618335

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

Barree spiral galaxy NGC 1300 in Eridan - Barred spiral galaxy NGC 1300 in Eridanus - The galaxy NGC1300 is located about 60 million years ago - light and extends over about 85 000 years - light. This image was obtained by the Hubble Space Telescope in September 2004. NGC 1300 is considered to be prototypical of barred spiral galaxies. Barred spirals differ from normal spiral galaxies in that the arms of the galaxy do not spiral all the way into the center, but are connected to the two ends of a straight bar of stars containing the nucleus at its center. At Hubble's resolution, a myriad of fine details, some of which have never before been seen, is seen throughout the galaxy's arms, disk, bulge, and nucleus. Blue and red supergiant stars, star clusters, and star - forming regions are well resolved across the spiral arms, and dust lanes trace out fine structures in the disk and bar. Numerous more distant galaxies are visible in the background, and are seen even through the densest regio

Barree spiral galaxy NGC 1300 in Eridan - Barred spiral galaxy NGC 1300 in Eridanus - The galaxy NGC1300 is located about 60 million years ago - light and extends over about 85 000 years - light. This image was obtained by the Hubble Space Telescope in September 2004. NGC 1300 is considered to be prototypical of barred spiral galaxies. Barred spirals differ from normal spiral galaxies in that the arms of the galaxy do not spiral all the way into the center, but are connected to the two ends of a straight bar of stars containing the nucleus at its center. At Hubble's resolution, a myriad of fine details, some of which have never before been seen, is seen throughout the galaxy's arms, disk, bulge, and nucleus. Blue and red supergiant stars, star clusters, and star - forming regions are well resolved across the spiral arms, and dust lanes trace out fine structures in the disk and bar. Numerous more distant galaxies are visible in the background, and are seen even through the densest regio

PIX4609752

Iridis, 2016 (digital photo)

Iridis, 2016 (digital photo)

Smith, Robert (21st century)

MMM7342316

Djorgovski globular cluster 1 in Scorpio - Globular cluster Djorgovski 1 in Scorpius - The Djorgovski globular cluster 1 is a cluster of light stars located near the galactic center, 40,000 years - light from Earth. Its discovery is recent (1987) and studies show that its stars are composed only of hydrogene and helium. The absence of heavier elements that are usually present in stars remains an enigma. Image obtained by the Hubble Space Telescope (HST). The NASA/ESA Hubble Space Telescope has imaged an area so jam - packed with stars that they almost overwhelm the inky blackness of space. This includes the globular star cluster Djorgovski 1, which was only discovered in 1987 Djorgovski 1 is located close to the centre of our Milky Way Galaxy, within the bulge. If the galaxy is thought of as being like a city, then this bulge is the very busiest district at its centre. Djorgovski 1's proximity to this hub - - within just a few degrees - - explains why the picture is teeming with stars.

Djorgovski globular cluster 1 in Scorpio - Globular cluster Djorgovski 1 in Scorpius - The Djorgovski globular cluster 1 is a cluster of light stars located near the galactic center, 40,000 years - light from Earth. Its discovery is recent (1987) and studies show that its stars are composed only of hydrogene and helium. The absence of heavier elements that are usually present in stars remains an enigma. Image obtained by the Hubble Space Telescope (HST). The NASA/ESA Hubble Space Telescope has imaged an area so jam - packed with stars that they almost overwhelm the inky blackness of space. This includes the globular star cluster Djorgovski 1, which was only discovered in 1987 Djorgovski 1 is located close to the centre of our Milky Way Galaxy, within the bulge. If the galaxy is thought of as being like a city, then this bulge is the very busiest district at its centre. Djorgovski 1's proximity to this hub - - within just a few degrees - - explains why the picture is teeming with stars.

PIX4565206

Irregular galaxy NGC 6822 in Sagittarius - Irregular galaxy NGC 6822 in Sagittarius - The galaxy NGC 6822 is about 1.6 million years away - light from Earth. She belongs to our local group. Image obtained with a telescope of 35 cm, 12 hours of poses. The irregular dwarf galaxy NGC 6822 is located at only 1,6 million light year. It is a member of our local group and the third nearest galaxy to the Milky Way after the Sagittarius Dwarf Elliptical and the Magellanic Clouds. The galaxy was discovered by Barnard in 1881 using a 6 inch refractor. It is very similar to the LMC with its weak bar and its irregular distribution of bright OB associations and HII regions. In 1925 in a classic paper, Edwin Hubble reported on several bright objects in NGC 6822, later found to represent a grouping of bright star clusters and HII regions. The galaxy is rich in neutral hydrogen gas, the essential fuel of star formation. NGC 6822 started forming stars some 10 billion years ago. Similar to the LMC it has

Irregular galaxy NGC 6822 in Sagittarius - Irregular galaxy NGC 6822 in Sagittarius - The galaxy NGC 6822 is about 1.6 million years away - light from Earth. She belongs to our local group. Image obtained with a telescope of 35 cm, 12 hours of poses. The irregular dwarf galaxy NGC 6822 is located at only 1,6 million light year. It is a member of our local group and the third nearest galaxy to the Milky Way after the Sagittarius Dwarf Elliptical and the Magellanic Clouds. The galaxy was discovered by Barnard in 1881 using a 6 inch refractor. It is very similar to the LMC with its weak bar and its irregular distribution of bright OB associations and HII regions. In 1925 in a classic paper, Edwin Hubble reported on several bright objects in NGC 6822, later found to represent a grouping of bright star clusters and HII regions. The galaxy is rich in neutral hydrogen gas, the essential fuel of star formation. NGC 6822 started forming stars some 10 billion years ago. Similar to the LMC it has

R. Gendler

PIX4613022

Open cluster Westerlund 1 in the Altar - Open cluster Westerlund 1 in Ara - The open cluster Westerlund 1 is located about 16,000 years - light in the southern constellation of the Altar. It contains hundreds of very young massive stars as well as the supergiant red star W26. Image obtained by the VST telescope in Chile. This exceptionally bright cluster lies about 16 000 light - years from Earth in the southern constellation of Ara (The Altar). It contains hundreds of very massive and brilliant stars, all of which are just a few million years old - - babies by stellar standards. But our view of this cluster is hampered by gas and dust that prevents most of the visible light from the cluster's stars from getting to Earth. Around one of the stars - - known as W26, a red supergiant and possibly the biggest star known - - astronomers have discovered clouds of glowing hydrogen gas, shown as green features in this new image. Such glowing clouds around massive stars are very rare, and are ev

Open cluster Westerlund 1 in the Altar - Open cluster Westerlund 1 in Ara - The open cluster Westerlund 1 is located about 16,000 years - light in the southern constellation of the Altar. It contains hundreds of very young massive stars as well as the supergiant red star W26. Image obtained by the VST telescope in Chile. This exceptionally bright cluster lies about 16 000 light - years from Earth in the southern constellation of Ara (The Altar). It contains hundreds of very massive and brilliant stars, all of which are just a few million years old - - babies by stellar standards. But our view of this cluster is hampered by gas and dust that prevents most of the visible light from the cluster's stars from getting to Earth. Around one of the stars - - known as W26, a red supergiant and possibly the biggest star known - - astronomers have discovered clouds of glowing hydrogen gas, shown as green features in this new image. Such glowing clouds around massive stars are very rare, and are ev

PIX4569073

Spiral galaxy M81 seen by the Hubble space telescope - Spiral galaxy M81 in Ursa Major - The spiral galaxy M81 is located 12 million years ago - light from Earth. Its arms are home to star-forming regions, while its core is surrounded by much older yellow stars and a black hole. Image obtained by the Hubble space telescope with the ACS camera in 2006. Although the M81 galaxy is 11.6 million light - years away, this image taken by the Hubble space telescope is so sharp that it can resolve individual stars, along with open star clusters, globular star clusters, and even glowing regions of fluorescent gas. The spiral arms, which wind all the way down into the nucleus, are made up of young, bluish, hot stars formed in the past few million years. They also host a population of stars formed in an episode of star formation that started about 600 million years ago. The greenish regions are dense areas of bright star formation. The ultraviolet light from hot young stars are fluorescing the surr

Spiral galaxy M81 seen by the Hubble space telescope - Spiral galaxy M81 in Ursa Major - The spiral galaxy M81 is located 12 million years ago - light from Earth. Its arms are home to star-forming regions, while its core is surrounded by much older yellow stars and a black hole. Image obtained by the Hubble space telescope with the ACS camera in 2006. Although the M81 galaxy is 11.6 million light - years away, this image taken by the Hubble space telescope is so sharp that it can resolve individual stars, along with open star clusters, globular star clusters, and even glowing regions of fluorescent gas. The spiral arms, which wind all the way down into the nucleus, are made up of young, bluish, hot stars formed in the past few million years. They also host a population of stars formed in an episode of star formation that started about 600 million years ago. The greenish regions are dense areas of bright star formation. The ultraviolet light from hot young stars are fluorescing the surr

PIX4610340

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

PIX4612686

Detail in the Tarantula Nebula - Part of the Tarantula Nebula - The Tarantula Nebula (or 30 Bream bream) is the largest star-forming region of the Magellan Cloud. It is located 170,000 light years ago in the constellation Dorado (southern hemisphere). This image obtained by the Hubble Space Telescope (HST) shows a detail of the nebula around NGC 2060, a cluster of stars associated with a remnant of supernova (N157b) housing a pulsar. The part of the Tarentula nebula visible in this image from Hubble's Advanced Camera for Surveys is criss - crossed with tendrils of dust and gas churned up by recent supernovae. These supernova remnants include NGC 2060, visible above and to the left of the centre of this image, which contains the brightest known pulsar. The tarantula's bite goes beyond NGC 2060. Near the edge of the nebula, outside the frame, below and to the right, lie the remains of supernova SN 1987a, the closest supernova to Earth to be observed since the invention of telescopes in t

Detail in the Tarantula Nebula - Part of the Tarantula Nebula - The Tarantula Nebula (or 30 Bream bream) is the largest star-forming region of the Magellan Cloud. It is located 170,000 light years ago in the constellation Dorado (southern hemisphere). This image obtained by the Hubble Space Telescope (HST) shows a detail of the nebula around NGC 2060, a cluster of stars associated with a remnant of supernova (N157b) housing a pulsar. The part of the Tarentula nebula visible in this image from Hubble's Advanced Camera for Surveys is criss - crossed with tendrils of dust and gas churned up by recent supernovae. These supernova remnants include NGC 2060, visible above and to the left of the centre of this image, which contains the brightest known pulsar. The tarantula's bite goes beyond NGC 2060. Near the edge of the nebula, outside the frame, below and to the right, lie the remains of supernova SN 1987a, the closest supernova to Earth to be observed since the invention of telescopes in t

PIX4618146

Nebula of the Rosette in the Unicorn seen in false colors - Rosette nebula in Monoceros - The nebula of the Rosette is a vast cloud of dust and gas situated about 5500 years - light from the Earth. In the center of the nebula, a cluster of blue stars, NGC 2244, formed less than a million years ago. Image in false colors obtained by Kitt Peak's 90 cm telescope. The Rosetta Nebula is a vast cloud of dust and gas, extending over an area of more than 1 degree across, or about 5 times the area covered by the full moon. Its parts have been assigned different NGC numbers: 2237, 2238, 2239, and 2246. Within the nebula, open star cluster NGC 2244 is situated, consisted of the young stars which recently formed from the nebula's material, and the brightest of which make the nebula shine by exciting its atoms to emit radiation. This stunning emission - line image of the Rosette nebula (NGC2237) in the constellation Monoceros (the Unicorn) was taken at the National Science Foundation's 0.9 - m tele

Nebula of the Rosette in the Unicorn seen in false colors - Rosette nebula in Monoceros - The nebula of the Rosette is a vast cloud of dust and gas situated about 5500 years - light from the Earth. In the center of the nebula, a cluster of blue stars, NGC 2244, formed less than a million years ago. Image in false colors obtained by Kitt Peak's 90 cm telescope. The Rosetta Nebula is a vast cloud of dust and gas, extending over an area of more than 1 degree across, or about 5 times the area covered by the full moon. Its parts have been assigned different NGC numbers: 2237, 2238, 2239, and 2246. Within the nebula, open star cluster NGC 2244 is situated, consisted of the young stars which recently formed from the nebula's material, and the brightest of which make the nebula shine by exciting its atoms to emit radiation. This stunning emission - line image of the Rosette nebula (NGC2237) in the constellation Monoceros (the Unicorn) was taken at the National Science Foundation's 0.9 - m tele

PIX4618453

Star births in the nebula NGC 6729 - Young stars in the nebula NGC 6729 - Close up on a star-forming region. The new stars are invisible, hidden behind the dust cloud at the top left of the image, but the material they eject at very high speed causes colorful and luminous arcs in contact with the surrounding gas. Image obtained in Chile with the VLT. This very detailed false - colour image from Eso's Very Large Telescope shows the dramatic effects of very young stars on the dust and gas from which they were born in the star - forming region NGC 6729. The baby stars are invisible in this picture, being hidden behind dust clouds at the upper left of the picture, but material they are ejecting is crashing into the surroundings at speeds of that can be as high as one million kilometres per hour. These shocks cause the gas to shine and create the strangely coloured glowing arcs and blobs known as Herbig - Haro objects. In this view the Herbig - Haro objects form two lines marking out the pr

Star births in the nebula NGC 6729 - Young stars in the nebula NGC 6729 - Close up on a star-forming region. The new stars are invisible, hidden behind the dust cloud at the top left of the image, but the material they eject at very high speed causes colorful and luminous arcs in contact with the surrounding gas. Image obtained in Chile with the VLT. This very detailed false - colour image from Eso's Very Large Telescope shows the dramatic effects of very young stars on the dust and gas from which they were born in the star - forming region NGC 6729. The baby stars are invisible in this picture, being hidden behind dust clouds at the upper left of the picture, but material they are ejecting is crashing into the surroundings at speeds of that can be as high as one million kilometres per hour. These shocks cause the gas to shine and create the strangely coloured glowing arcs and blobs known as Herbig - Haro objects. In this view the Herbig - Haro objects form two lines marking out the pr

PIX4620300

Swan Lace - detail - This delicate Hubble Space Telescope image shows a tiny portion of the Cygnus loop, a supernova remnant in the constellation of Cygnus, the Swan. Measurements on this super - detailed image of a cosmic veil shows that the original supernova explosion took place only 5000 years ago. The Cygnus loop, also known as the Veil Nebula, is well - known to amateur astronomers as a challenging target for larger telescopes. It has a diameter of about 3 degrees (corresponding to 6 full moons). This spectacular nebula was created when a massive star ended its days in an immense supernova explosion. A bubble of dust and gas was expelled into space and has continued to expand outwards ever since. The Cygnus Loop consists of two main arcs, designated NGC 6992/95 for the Eastern arc and NGC 6960 for the Western arc (also called the Witch's Broom Nebula). The tiny area of the Hubble image is seen in the upper left - hand corner of the nebula, at the outer edge of one of the large fi

Swan Lace - detail - This delicate Hubble Space Telescope image shows a tiny portion of the Cygnus loop, a supernova remnant in the constellation of Cygnus, the Swan. Measurements on this super - detailed image of a cosmic veil shows that the original supernova explosion took place only 5000 years ago. The Cygnus loop, also known as the Veil Nebula, is well - known to amateur astronomers as a challenging target for larger telescopes. It has a diameter of about 3 degrees (corresponding to 6 full moons). This spectacular nebula was created when a massive star ended its days in an immense supernova explosion. A bubble of dust and gas was expelled into space and has continued to expand outwards ever since. The Cygnus Loop consists of two main arcs, designated NGC 6992/95 for the Eastern arc and NGC 6960 for the Western arc (also called the Witch's Broom Nebula). The tiny area of the Hubble image is seen in the upper left - hand corner of the nebula, at the outer edge of one of the large fi

PIX4582633

Nebula NGC 3372 in the Carene - NGC 3372 Carina nebula - The Carene Nebula (NGC 3372) is a very large region of star formation visible in the southern hemisphere. Image obtained through 3 different filters that highlight oxygen (blue), hydrogen (green), and sulfur (red). The bright star in the center of the image is Eta Carinae, a super massive star. The Carina Nebula (also known as the Great Nebula in Carina, the Eta Carinae Nebula, or NGC 3372) is a large bright nebula that surrounds several open clusters of stars. Eta Carinae and HD 93129A, two of the most massive and luminous stars in our Milky Way galaxy, are among them. The nebula lies at an estimated distance between 6,500 and 10,000 light years from Earth. It is located in the constellation of Carina. The nebula contains multiple O - type stars. This nebula is one of the largest H II regions in the Milky Way. It has a visual magnitude of 1.0. The nebula is one of the largest diffuse nebulae in our skies. Although it is some fou

Nebula NGC 3372 in the Carene - NGC 3372 Carina nebula - The Carene Nebula (NGC 3372) is a very large region of star formation visible in the southern hemisphere. Image obtained through 3 different filters that highlight oxygen (blue), hydrogen (green), and sulfur (red). The bright star in the center of the image is Eta Carinae, a super massive star. The Carina Nebula (also known as the Great Nebula in Carina, the Eta Carinae Nebula, or NGC 3372) is a large bright nebula that surrounds several open clusters of stars. Eta Carinae and HD 93129A, two of the most massive and luminous stars in our Milky Way galaxy, are among them. The nebula lies at an estimated distance between 6,500 and 10,000 light years from Earth. It is located in the constellation of Carina. The nebula contains multiple O - type stars. This nebula is one of the largest H II regions in the Milky Way. It has a visual magnitude of 1.0. The nebula is one of the largest diffuse nebulae in our skies. Although it is some fou

Tom Davis

PIX4619112

Supernova Remnants SNR B0509 - 67.5 - Supernova Remnant SNR B0509 - 67.5 - SNR B0509 - 67.5 (or SNR 0509) is the rest of a star explosion in the galaxy of the Great Magellan Cloud. This 23-year bubble - light of diameter extends at a speed of 18 million km/h. Composite of images obtained by the Hubble Space Telescope (HST) in 2006 and 2010. This delicate shell, photographed by the NASA/ESA Hubble Space Telescope, appears to float serenely in the depths of space, but this apparent calm hides an inner turmoil. The gaseous envelope formed as the expanding blast wave and ejected material from a supernova tore through the nearby interstellar medium. Called SNR B0509 - 67.5 (or SNR 0509 for short), the bubble is the visible remnant of a powerful stellar explosion in the Large Magellanic Cloud (LMC), a small galaxy about 160,000 light - years from Earth. Ripples in the shell's surface may be caused either by subtle variations in the density of the ambient interstellar gas, or possibly be driv

Supernova Remnants SNR B0509 - 67.5 - Supernova Remnant SNR B0509 - 67.5 - SNR B0509 - 67.5 (or SNR 0509) is the rest of a star explosion in the galaxy of the Great Magellan Cloud. This 23-year bubble - light of diameter extends at a speed of 18 million km/h. Composite of images obtained by the Hubble Space Telescope (HST) in 2006 and 2010. This delicate shell, photographed by the NASA/ESA Hubble Space Telescope, appears to float serenely in the depths of space, but this apparent calm hides an inner turmoil. The gaseous envelope formed as the expanding blast wave and ejected material from a supernova tore through the nearby interstellar medium. Called SNR B0509 - 67.5 (or SNR 0509 for short), the bubble is the visible remnant of a powerful stellar explosion in the Large Magellanic Cloud (LMC), a small galaxy about 160,000 light - years from Earth. Ripples in the shell's surface may be caused either by subtle variations in the density of the ambient interstellar gas, or possibly be driv

PIX4583175

Open cluster NGC 4755 - Jewel Box - The Jewel Box star cluster - The NGC 4755 cluster is located in the constellation of the Southern Cross at a distance of 6400 years - light from Earth. The bright orange star on the top right is Kappa Crucis, a supergiant red star. This cluster contains about fifty stars formed about 16 million years ago. This close-up of the center of the cluster was obtained with the Hubble Space Telescope. This image is a “” close - up 'view from the NASA/ESA Hubble Space Telescope of NGC 4755, or the Jewel Box cluster. Several very bright, pale blue supergiant stars, a solitary ruby - red supergiant and a variety of other brilliantly coloured stars are visible in the image, as well as many much fainter ones, often with intriguing colours. The huge variety in brightness exists because the brighter stars are 15 to 20 times the mass of the Sun, while the dimmest stars are less than half the mass of the Sun. This is the first image of an open galactic cluster with im

Open cluster NGC 4755 - Jewel Box - The Jewel Box star cluster - The NGC 4755 cluster is located in the constellation of the Southern Cross at a distance of 6400 years - light from Earth. The bright orange star on the top right is Kappa Crucis, a supergiant red star. This cluster contains about fifty stars formed about 16 million years ago. This close-up of the center of the cluster was obtained with the Hubble Space Telescope. This image is a “” close - up 'view from the NASA/ESA Hubble Space Telescope of NGC 4755, or the Jewel Box cluster. Several very bright, pale blue supergiant stars, a solitary ruby - red supergiant and a variety of other brilliantly coloured stars are visible in the image, as well as many much fainter ones, often with intriguing colours. The huge variety in brightness exists because the brighter stars are 15 to 20 times the mass of the Sun, while the dimmest stars are less than half the mass of the Sun. This is the first image of an open galactic cluster with im

PIX4568246

Southern Aurora on the Planet Saturn - Aurora on Saturn - The Planet Saturn accompanied by a Southern Aurora, seen in visible and infrared by the Cassini probe on November 1, 2008. This false - color composite image, constructed from data obtained by Nasa's Cassini spacecraft, shows the glow of auroras streaking out about 1,000 kilometers (600 miles) from the cloud tops of Saturn's south polar region. In this image constructed from data collected in the near - infrared wavelengths of light, the auroral emission is shown in green. Scientists designated blue to indicate sunlight reflected at wavelengths from 2 to 3 microns, green to indicate light from hydrogen ions at wavelengths between 3 and 4 microns and red to indicate thermal emission at 5 microns. Saturn's rings and high altitude haze only reflect sunlight at 3 microns or less, so they appear deep blue. The glow from the aurora can only be seen at the wavelengths in the green channel. The heat emission from the interior of Saturn

Southern Aurora on the Planet Saturn - Aurora on Saturn - The Planet Saturn accompanied by a Southern Aurora, seen in visible and infrared by the Cassini probe on November 1, 2008. This false - color composite image, constructed from data obtained by Nasa's Cassini spacecraft, shows the glow of auroras streaking out about 1,000 kilometers (600 miles) from the cloud tops of Saturn's south polar region. In this image constructed from data collected in the near - infrared wavelengths of light, the auroral emission is shown in green. Scientists designated blue to indicate sunlight reflected at wavelengths from 2 to 3 microns, green to indicate light from hydrogen ions at wavelengths between 3 and 4 microns and red to indicate thermal emission at 5 microns. Saturn's rings and high altitude haze only reflect sunlight at 3 microns or less, so they appear deep blue. The glow from the aurora can only be seen at the wavelengths in the green channel. The heat emission from the interior of Saturn

PIX4625211

Nebula NGC 7023 in Cephee - NGC 7023 (The Iris Nebula) in Cepheus - The Iris Nebula (NGC 7023) is a reflexion nebula illuminated by the massive star HD 200775. The bright star HD 200775 shining through the nebula NGC 7023 is a 10 solar mass star centrally imbedded in a region surrounded by ambient molecular cloud material. Suns are born from vast clouds of dust and gas that gather in the dark places between the stars. Gravity causes these interstellar vapors to collapse inward until the pressure causes high enough temperatures at its center to fuse hydrogen, the university's basic building block, into helium - an event that also releases gamma - ray photons. These photons can take a million years to travel outward through the overlying matter until they reach the surface and escape into space as visible light. The push of the photon's rush to make an exit also stops the cloud's collapse and thus what began as thin gas and dust becomes a brilliant star illuminating the heavens and possi

Nebula NGC 7023 in Cephee - NGC 7023 (The Iris Nebula) in Cepheus - The Iris Nebula (NGC 7023) is a reflexion nebula illuminated by the massive star HD 200775. The bright star HD 200775 shining through the nebula NGC 7023 is a 10 solar mass star centrally imbedded in a region surrounded by ambient molecular cloud material. Suns are born from vast clouds of dust and gas that gather in the dark places between the stars. Gravity causes these interstellar vapors to collapse inward until the pressure causes high enough temperatures at its center to fuse hydrogen, the university's basic building block, into helium - an event that also releases gamma - ray photons. These photons can take a million years to travel outward through the overlying matter until they reach the surface and escape into space as visible light. The push of the photon's rush to make an exit also stops the cloud's collapse and thus what began as thin gas and dust becomes a brilliant star illuminating the heavens and possi

Adam Block

PIX4620555

Brown dwarf star Gliese 229 b - Brown dwarf Gliese 229 b - Artist view of the brown dwarf star Gliese 229B. Discovered in 1995 in the constellation Lievre at 18 years - light from Earth, this brown dwarf is 30 to 40 times more massive than Jupiter and is estimated to be 2 to 4 billion years old. Top left is the red dwarf star Gliese 229A. This is how the brown dwarf Gliese 229b might appear from a distance of about a half million miles. Glowing like a charcoal ember, Gliese 229 b was discovered in 1995 and is 19 light years from the Earth. This brown dwarf orbits the red dwarf Gliese 229A in the constellation Lepus. Gliese A can be seen shining dimly on the upper left. These two dwarfs are about four billion miles apart, about the same distance between Pluto and our sun. Gliese 229 b is believed to be 30 to 40 times more massive than the planet Jupiter, which is massive enough for Gliese 229 b to sustain deuterium fusion, but not enough mass to initiate hydrogen fusion like our Sun. As

Brown dwarf star Gliese 229 b - Brown dwarf Gliese 229 b - Artist view of the brown dwarf star Gliese 229B. Discovered in 1995 in the constellation Lievre at 18 years - light from Earth, this brown dwarf is 30 to 40 times more massive than Jupiter and is estimated to be 2 to 4 billion years old. Top left is the red dwarf star Gliese 229A. This is how the brown dwarf Gliese 229b might appear from a distance of about a half million miles. Glowing like a charcoal ember, Gliese 229 b was discovered in 1995 and is 19 light years from the Earth. This brown dwarf orbits the red dwarf Gliese 229A in the constellation Lepus. Gliese A can be seen shining dimly on the upper left. These two dwarfs are about four billion miles apart, about the same distance between Pluto and our sun. Gliese 229 b is believed to be 30 to 40 times more massive than the planet Jupiter, which is massive enough for Gliese 229 b to sustain deuterium fusion, but not enough mass to initiate hydrogen fusion like our Sun. As

Walter B Myers

PIX4572553

Nebula IC 1396 in Cephee infrared view - 18/12/2003 The large composite image on the left is a product of combining data from the observator's multiband imaging photometer and the infrared array camera. The thermal emission at 24 microns measured by the photometer (red) is combined with near - infrared emission from the camera at 3.6/4.5 microns (blue) and from 5.8/8.0 microns (green). The colors of the diffuse emission and filaments vary, and are a combination of molecular hydrogen (which tends to be green) and polycyclic aromatic hydrocarbon (brown) emissions. Nasa's Spitzer Space Telescope image of a glowing stellar nursery provides a spectacular contrast to the opaque cloud seen in visible light. The Elephant's Trunk Nebula is an elongated dark globule within the emission nebula IC 1396 in the constellation of Cepheus. Located at a distance of 2,450 light - years, the globule is a condensation of dense gas that is barely surviving the strong ionizing radiation from a nearby massive

Nebula IC 1396 in Cephee infrared view - 18/12/2003 The large composite image on the left is a product of combining data from the observator's multiband imaging photometer and the infrared array camera. The thermal emission at 24 microns measured by the photometer (red) is combined with near - infrared emission from the camera at 3.6/4.5 microns (blue) and from 5.8/8.0 microns (green). The colors of the diffuse emission and filaments vary, and are a combination of molecular hydrogen (which tends to be green) and polycyclic aromatic hydrocarbon (brown) emissions. Nasa's Spitzer Space Telescope image of a glowing stellar nursery provides a spectacular contrast to the opaque cloud seen in visible light. The Elephant's Trunk Nebula is an elongated dark globule within the emission nebula IC 1396 in the constellation of Cepheus. Located at a distance of 2,450 light - years, the globule is a condensation of dense gas that is barely surviving the strong ionizing radiation from a nearby massive

PIX4622272

Geyser sur Enceladus - Artist view - Water geyser on Enceladus - Artist view - Artist view of an ice geyser on the surface of the Enceladus satellite. In the sky, the planet Saturn and its satellite Mimas. Liquid water reaches the surface of Enceladus' south pole and drives a massive plume of ice crystals into the sky. The combination of Enceladus' low surface gravity and the geyser's force accelerate the crystals to escape velocity, where sunlight breaks the water molecules down into their constituent atoms of hydrogen and oxygen. Saturn itself appears low on the horizon due to the proximity to Enceladus' pole. The small object immediately to Saturn's left is another icy moon named Mimas. Somewhat smaller than Enceladus and closer to Saturn, Mimas sprints around Saturn in slightly less than one Earth day. In March 2006 Nasa's Cassini probe revealed evidence of water - driven geysers on the surface of Enceladus. At first glance Enceladus doesn't seem to be a likely host for liquid wate

Geyser sur Enceladus - Artist view - Water geyser on Enceladus - Artist view - Artist view of an ice geyser on the surface of the Enceladus satellite. In the sky, the planet Saturn and its satellite Mimas. Liquid water reaches the surface of Enceladus' south pole and drives a massive plume of ice crystals into the sky. The combination of Enceladus' low surface gravity and the geyser's force accelerate the crystals to escape velocity, where sunlight breaks the water molecules down into their constituent atoms of hydrogen and oxygen. Saturn itself appears low on the horizon due to the proximity to Enceladus' pole. The small object immediately to Saturn's left is another icy moon named Mimas. Somewhat smaller than Enceladus and closer to Saturn, Mimas sprints around Saturn in slightly less than one Earth day. In March 2006 Nasa's Cassini probe revealed evidence of water - driven geysers on the surface of Enceladus. At first glance Enceladus doesn't seem to be a likely host for liquid wate

Walter B Myers

PIX4625850

Map of Fossil Radiation Seen by Planck - The cosmic microwave background as seen by Planck - The European Space Agency's Planck space telescope is the source of the data on the most detailed map ever drawn of the Cosmological Hyperrequency background radiation - the fossil radiation of the Big Bang. This image is based on data from the first 15 months of Planck operation. It is the first image of this mission that shows on the whole sky the oldest emission of light that bathed our young Universe when it was only 380,000 years old. The Universe was then filled with a burning magma of protons, electrons, and photons intertwining at about 2700oC. The interaction between protons and electrons that gave rise to the hydrogen atoms then released light. As a result of the expansion of the Universe, this light has been extended until today reaches hyperfrequency wavelengths equivalent to a temperature of just 2.7 degrees above the absolute zero. This hyperfrequency cosmological background radia

Map of Fossil Radiation Seen by Planck - The cosmic microwave background as seen by Planck - The European Space Agency's Planck space telescope is the source of the data on the most detailed map ever drawn of the Cosmological Hyperrequency background radiation - the fossil radiation of the Big Bang. This image is based on data from the first 15 months of Planck operation. It is the first image of this mission that shows on the whole sky the oldest emission of light that bathed our young Universe when it was only 380,000 years old. The Universe was then filled with a burning magma of protons, electrons, and photons intertwining at about 2700oC. The interaction between protons and electrons that gave rise to the hydrogen atoms then released light. As a result of the expansion of the Universe, this light has been extended until today reaches hyperfrequency wavelengths equivalent to a temperature of just 2.7 degrees above the absolute zero. This hyperfrequency cosmological background radia

PIX4634328

Galaxy System Arp 274 - Galaxy triplet Arp 274 - Arp 274 (NGC 5679) is a system of three galaxies located about 400 million years ago - light in the constellation of Virgo. Image obtained by the Hubble Space Telescope. Arp 274, also known as NGC 5679, is a system of three galaxies that appear to be partially overlapping in the image, although they may be at somewhat different distances. The spiral shapes of two of these galaxies appear mostly intact. The third galaxy (to the far left) is more compact, but shows evidence of star formation. Two of the three galaxies are forming new stars at a high rate. This is evident in the bright blue knots of star formation that are strung along the arms of the galaxy on the right and along the small galaxy on the left. The largest component is located in the middle of the three. It appears as a spiral galaxy, which may be barred. The entire system resides at about 400 million light - years away from Earth in the constellation Virgo. Hubble's Wide Fi

Galaxy System Arp 274 - Galaxy triplet Arp 274 - Arp 274 (NGC 5679) is a system of three galaxies located about 400 million years ago - light in the constellation of Virgo. Image obtained by the Hubble Space Telescope. Arp 274, also known as NGC 5679, is a system of three galaxies that appear to be partially overlapping in the image, although they may be at somewhat different distances. The spiral shapes of two of these galaxies appear mostly intact. The third galaxy (to the far left) is more compact, but shows evidence of star formation. Two of the three galaxies are forming new stars at a high rate. This is evident in the bright blue knots of star formation that are strung along the arms of the galaxy on the right and along the small galaxy on the left. The largest component is located in the middle of the three. It appears as a spiral galaxy, which may be barred. The entire system resides at about 400 million light - years away from Earth in the constellation Virgo. Hubble's Wide Fi

PIX4613741

Remnants of the Crab Supernova (M1) in the Taurus - This is a mosaic image, one of the largest ever taken by Nasa's Hubble Space Telescope of the Crab Nebula, a six - light - year - wide expanding remnant of a star's supernova explosion. Japanese and Chinese astronomers recorded this violent event nearly 1,000 years ago in 1054, as did, almost certainly, Native Americans. The orange filaments are the tattered remains of the star and consist mostly of hydrogen. The rapidly spinning neutron star embedded in the center of the nebula is the dynamo powering the nebula's eerie interior bluish glow. The blue light comes from electrons whirling at nearly the speed of light around magnetic field lines from the neutron star. The neutron star, like a lighthouse, ejects twin beams of radiation that appear to pulse 30 times a second due to the neutron star's rotation. A neutron star is the crushed ultra - dense core of the exploded star. The Crab Nebula derived its name from its appearance in a dra

Remnants of the Crab Supernova (M1) in the Taurus - This is a mosaic image, one of the largest ever taken by Nasa's Hubble Space Telescope of the Crab Nebula, a six - light - year - wide expanding remnant of a star's supernova explosion. Japanese and Chinese astronomers recorded this violent event nearly 1,000 years ago in 1054, as did, almost certainly, Native Americans. The orange filaments are the tattered remains of the star and consist mostly of hydrogen. The rapidly spinning neutron star embedded in the center of the nebula is the dynamo powering the nebula's eerie interior bluish glow. The blue light comes from electrons whirling at nearly the speed of light around magnetic field lines from the neutron star. The neutron star, like a lighthouse, ejects twin beams of radiation that appear to pulse 30 times a second due to the neutron star's rotation. A neutron star is the crushed ultra - dense core of the exploded star. The Crab Nebula derived its name from its appearance in a dra

PIX4583010

Supernova Remnants SNR B0509 - 67.5 - Supernova Remnant SNR B0509 - 67.5 - SNR B0509 - 67.5 (or SNR 0509) is the rest of a star explosion in the galaxy of the Great Magellan Cloud. This 23-year bubble - light of diameter extends at a speed of 18 million km/h. A composite of visible images and X-rays obtained by the Hubble Space Telescope (HST) in 2006 and 2010 and by the Chandra satellite. This delicate shell, photographed by the NASA/ESA Hubble Space Telescope, appears to float serenely in the depths of space, but this apparent calm hides an inner turmoil. The gaseous envelope formed as the expanding blast wave and ejected material from a supernova tore through the nearby interstellar medium. Called SNR B0509 - 67.5 (or SNR 0509 for short), the bubble is the visible remnant of a powerful stellar explosion in the Large Magellanic Cloud (LMC), a small galaxy about 160,000 light - years from Earth. Ripples in the shell's surface may be caused either by subtle variations in the density of

Supernova Remnants SNR B0509 - 67.5 - Supernova Remnant SNR B0509 - 67.5 - SNR B0509 - 67.5 (or SNR 0509) is the rest of a star explosion in the galaxy of the Great Magellan Cloud. This 23-year bubble - light of diameter extends at a speed of 18 million km/h. A composite of visible images and X-rays obtained by the Hubble Space Telescope (HST) in 2006 and 2010 and by the Chandra satellite. This delicate shell, photographed by the NASA/ESA Hubble Space Telescope, appears to float serenely in the depths of space, but this apparent calm hides an inner turmoil. The gaseous envelope formed as the expanding blast wave and ejected material from a supernova tore through the nearby interstellar medium. Called SNR B0509 - 67.5 (or SNR 0509 for short), the bubble is the visible remnant of a powerful stellar explosion in the Large Magellanic Cloud (LMC), a small galaxy about 160,000 light - years from Earth. Ripples in the shell's surface may be caused either by subtle variations in the density of

PIX4583187

Planetary nebula M57 (NGC 6720) in Lyra - The Ring nebula M57 in Lyra - The planetary nebula of Lyra (M57) is located about 2000 years - light from Earth. A planetary nebula is a gas shell from a small late-life star whose heart collapsed to become a white dwarf and expelled the outer layers of its matter. Image obtained by the Hubble Space Telescope. This close - up, visible - light view by Nasa's Hubble Space Telescope reveals new details of the Ring Nebula. The object is tilted towards Earth so that astronomers see the ring face - on. The Hubble observations reveal that the nebula's shape is more complicated than astronomers thought. The blue gas in the nebula's center is actually a football - shaped structure that pierces the red doughnut - shaped material. Hubble also uncovers the detailed structure of the dark, irregular knots of dense gas embedded along the inner rim of the ring. The knots look like spokes in a bicycle. The Hubble images have allowed the research team to match u

Planetary nebula M57 (NGC 6720) in Lyra - The Ring nebula M57 in Lyra - The planetary nebula of Lyra (M57) is located about 2000 years - light from Earth. A planetary nebula is a gas shell from a small late-life star whose heart collapsed to become a white dwarf and expelled the outer layers of its matter. Image obtained by the Hubble Space Telescope. This close - up, visible - light view by Nasa's Hubble Space Telescope reveals new details of the Ring Nebula. The object is tilted towards Earth so that astronomers see the ring face - on. The Hubble observations reveal that the nebula's shape is more complicated than astronomers thought. The blue gas in the nebula's center is actually a football - shaped structure that pierces the red doughnut - shaped material. Hubble also uncovers the detailed structure of the dark, irregular knots of dense gas embedded along the inner rim of the ring. The knots look like spokes in a bicycle. The Hubble images have allowed the research team to match u

PIX4623343

Geyser sur Enceladus - Artist's view - Water geyser on Enceladus - Artist's view of an ice geyser on the surface of the Enceladus satellite. In the sky, the planet Saturn and its satellite Mimas. Liquid water reaches the surface of Enceladus' south pole and drives a massive plume of ice crystals into the sky. The combination of Enceladus' low surface gravity and the geyser's force accelerate the crystals to escape velocity, where sunlight breaks the water molecules down into their constituent atoms of hydrogen and oxygen. Saturn itself appears low on the horizon due to the proximity to Enceladus' pole. The small object immediately to Saturn's left is another icy moon named Mimas. Somewhat smaller than Enceladus and closer to Saturn, Mimas sprints around Saturn in slightly less than one Earth day. In March 2006 Nasa's Cassini probe revealed evidence of water - driven geysers on the surface of Enceladus. At first glance Enceladus doesn't seem to be a likely host for liquid water as the s

Geyser sur Enceladus - Artist's view - Water geyser on Enceladus - Artist's view of an ice geyser on the surface of the Enceladus satellite. In the sky, the planet Saturn and its satellite Mimas. Liquid water reaches the surface of Enceladus' south pole and drives a massive plume of ice crystals into the sky. The combination of Enceladus' low surface gravity and the geyser's force accelerate the crystals to escape velocity, where sunlight breaks the water molecules down into their constituent atoms of hydrogen and oxygen. Saturn itself appears low on the horizon due to the proximity to Enceladus' pole. The small object immediately to Saturn's left is another icy moon named Mimas. Somewhat smaller than Enceladus and closer to Saturn, Mimas sprints around Saturn in slightly less than one Earth day. In March 2006 Nasa's Cassini probe revealed evidence of water - driven geysers on the surface of Enceladus. At first glance Enceladus doesn't seem to be a likely host for liquid water as the s

Walter B Myers

PIX4625896

Proto - planetary nebula OH231.8+4.2 dans la Poupe/HST

Proto - planetary nebula OH231.8+4.2 dans la Poupe/HST

PIX4623703

Red Dwarf Star Proxima of Centauri - Proxima Centauri in X - Ray - Proxima of Centaur (in the center of the image) is the closest star to the Sun, at a distance of 4.2 years - light. It belongs to the triple Alpha star system of the Centaurus being the least bright star of this system; it is a red dwarf star. X-ray image obtained by the Chandra space telescope. Chandra and XMM - Newton observations of the red dwarf star Proxima Centauri have shown that its surface is in a state of turmoil. Flares, or explosive outbursts, occur almost continually. This behavior can be traced to Proxima Centauri's low mass, about a tenth that of the Sun. In the cores of low mass stars, nuclear fusion reactions that convert hydrogen to helium proceed very slowly, and create a turbulent, convective motion throughout their interiors. This motion stores up magnetic energy which is often released explosively in the star's upper atmosphere where it produces flares in X - rays and other forms of light. The same

Red Dwarf Star Proxima of Centauri - Proxima Centauri in X - Ray - Proxima of Centaur (in the center of the image) is the closest star to the Sun, at a distance of 4.2 years - light. It belongs to the triple Alpha star system of the Centaurus being the least bright star of this system; it is a red dwarf star. X-ray image obtained by the Chandra space telescope. Chandra and XMM - Newton observations of the red dwarf star Proxima Centauri have shown that its surface is in a state of turmoil. Flares, or explosive outbursts, occur almost continually. This behavior can be traced to Proxima Centauri's low mass, about a tenth that of the Sun. In the cores of low mass stars, nuclear fusion reactions that convert hydrogen to helium proceed very slowly, and create a turbulent, convective motion throughout their interiors. This motion stores up magnetic energy which is often released explosively in the star's upper atmosphere where it produces flares in X - rays and other forms of light. The same

PIX4571790

Planetary nebula IC 418 dans le Lievre/HST - IC 418: The “” Spirograph” Nebula Glowing like a multi - faceted jewel, the planetary nebula IC 418 lies about 2,000 light - years from Earth in the direction of the constellation Lepus. This photograph is from Nasa's Hubble Space Telescope, obtained with the Wide Field Planetary Camera 2. A planetary nebula represents the final stage in the evolution of a star similar to our Sun. The star at the center of IC 418 was a red giant a few thousand years ago, but then ejected its outer layers into space to form the nebula, which has now expanded to a diameter of about 0.1 light - year. The stellar remnant at the center is the hot core of the red giant, from which ultraviolet radiation floods out into the surrounding gas, causing it to fluoresce. Over the next several thousand years, the nebula will gradually disperse into space, and then the star will cool and fade away for billions of years as a white dwarf. Our own Sun is expected to undergo a

Planetary nebula IC 418 dans le Lievre/HST - IC 418: The “” Spirograph” Nebula Glowing like a multi - faceted jewel, the planetary nebula IC 418 lies about 2,000 light - years from Earth in the direction of the constellation Lepus. This photograph is from Nasa's Hubble Space Telescope, obtained with the Wide Field Planetary Camera 2. A planetary nebula represents the final stage in the evolution of a star similar to our Sun. The star at the center of IC 418 was a red giant a few thousand years ago, but then ejected its outer layers into space to form the nebula, which has now expanded to a diameter of about 0.1 light - year. The stellar remnant at the center is the hot core of the red giant, from which ultraviolet radiation floods out into the surrounding gas, causing it to fluoresce. Over the next several thousand years, the nebula will gradually disperse into space, and then the star will cool and fade away for billions of years as a white dwarf. Our own Sun is expected to undergo a

PIX4623677

Bok's cells in NGC 281 (Cassiopee) - Bok globules in NGC 281 - View of a detail of the nebula NGC 281 in Cassiopee center on Bok's Globules. A Bok's blood cell is a dark interstellar cloud of gases and dust that absorb light. If it condenses enough, it gives birth to new stars. Near these blood cells shine blue stars; they belong to the young cluster of stars IC 1590. Image obtained by the Hubble Space Telescope in October 2005. These opaque, dark knots of gas and dust are called “” Bok globules,””” and they are absorbing light in the center of the nearby emission nebula and star - forming region. Bok hypothesized that giant molecular clouds, on the order of hundreds of light - years in size, can become perturbed and form small pockets where the dust and gas are highly concentrated. These small pockets become gravitationally bound and accumulate dust and gas from the surrounding area. If they can capture enough mass, they have the potential of creating stars in their cores; however, no

Bok's cells in NGC 281 (Cassiopee) - Bok globules in NGC 281 - View of a detail of the nebula NGC 281 in Cassiopee center on Bok's Globules. A Bok's blood cell is a dark interstellar cloud of gases and dust that absorb light. If it condenses enough, it gives birth to new stars. Near these blood cells shine blue stars; they belong to the young cluster of stars IC 1590. Image obtained by the Hubble Space Telescope in October 2005. These opaque, dark knots of gas and dust are called “” Bok globules,””” and they are absorbing light in the center of the nearby emission nebula and star - forming region. Bok hypothesized that giant molecular clouds, on the order of hundreds of light - years in size, can become perturbed and form small pockets where the dust and gas are highly concentrated. These small pockets become gravitationally bound and accumulate dust and gas from the surrounding area. If they can capture enough mass, they have the potential of creating stars in their cores; however, no

PIX4617491

Star T - Tauri in Orion - Bow Shock around T - Tauri Star in the Orion Nebula - LL Ori is a star T - Tauri located about 1500 years ago - light from Earth in Orion's nebula. This young star emits a powerful stellar wind that hits the surrounding gas creating an arc-shaped shock wave Image obtained by the Hubble space telescope in February 1995. A bow shock can be created in space when two streams of gas collide. The star LL Ori emits a vigorous solar wind, a stream of charged particles moving rapidly outward from the star. Our own Sun has a less energetic version of this wind that is responsible for auroral displays on the Earth. The material in the fast wind from LL Ori collides with slow - moving gas evaporating away from the center of the Orion Nebula, which is located to the lower right in this Heritage image. The surface where the two winds collide is the crescent - shaped bow shock seen in the image. Unlike a water wave made by a ship, this interstellar bow shock is a three - dim

Star T - Tauri in Orion - Bow Shock around T - Tauri Star in the Orion Nebula - LL Ori is a star T - Tauri located about 1500 years ago - light from Earth in Orion's nebula. This young star emits a powerful stellar wind that hits the surrounding gas creating an arc-shaped shock wave Image obtained by the Hubble space telescope in February 1995. A bow shock can be created in space when two streams of gas collide. The star LL Ori emits a vigorous solar wind, a stream of charged particles moving rapidly outward from the star. Our own Sun has a less energetic version of this wind that is responsible for auroral displays on the Earth. The material in the fast wind from LL Ori collides with slow - moving gas evaporating away from the center of the Orion Nebula, which is located to the lower right in this Heritage image. The surface where the two winds collide is the crescent - shaped bow shock seen in the image. Unlike a water wave made by a ship, this interstellar bow shock is a three - dim

PIX4572363

Nebula M78 in Orion - M78 nebula in Orion - The reflexion nebula M78 (NGC 2068) is located about 1300 years - light from Earth and extends over 4 years - light. Image obtained with the 2.2 meter MPG/ESO telescope at the La Silla Observatory. Messier 78 is a fine example of a reflection nebula. The ultraviolet radiation from the stars that illuminate it is not intense enough to ionise the gas to make it glow - - its dust particles simply reflect the starlight that falls on them. Despite this, Messier 78 can easily be observed with a small telescope, being one of the brightest reflection nebulae in the sky. It lies about 1350 light - years away in the constellation of Orion (The Hunter) and can be found northeast of the easternmost star of Orion's belt. Two bright stars, HD 38563A and HD 38563B, are the main powerhouses behind Messier 78. However, the nebula is home to many more stars, including a collection of about 45 low mass, young stars (less than 10 million years old) in which the

Nebula M78 in Orion - M78 nebula in Orion - The reflexion nebula M78 (NGC 2068) is located about 1300 years - light from Earth and extends over 4 years - light. Image obtained with the 2.2 meter MPG/ESO telescope at the La Silla Observatory. Messier 78 is a fine example of a reflection nebula. The ultraviolet radiation from the stars that illuminate it is not intense enough to ionise the gas to make it glow - - its dust particles simply reflect the starlight that falls on them. Despite this, Messier 78 can easily be observed with a small telescope, being one of the brightest reflection nebulae in the sky. It lies about 1350 light - years away in the constellation of Orion (The Hunter) and can be found northeast of the easternmost star of Orion's belt. Two bright stars, HD 38563A and HD 38563B, are the main powerhouses behind Messier 78. However, the nebula is home to many more stars, including a collection of about 45 low mass, young stars (less than 10 million years old) in which the

PIX4618217

Galaxy AM 0644 - 741 in Flying Fish - Ring galaxy AM 0644 - 741 in Volans - The annular galaxy AM 0644 - 741 is about 300 million years away - light from Earth. A collision with another galaxy causes its ring shape. This ring extends over 150,000 years - light and is composed of recently formed and extremely bright blue stars. Image obtained by the Hubble Space Telescope in January 2004. This galaxy, cataloged as AM 0644 - 741, is a member of the class of so - called “” ring galaxies.”” It lies 300 million light - years away in the direction of the southern constellation Volans. Ring galaxies are an especially striking example of how collisions between galaxies can dramatically change their structure, while also triggering the formation of new stars. In the case of AM 0644 - 741, the galaxy that pierced through the ring galaxy is out of the image but visible in larger - field images. The soft spiral galaxy that is visible to the left of the ring galaxy in the image is a coincidental ba

Galaxy AM 0644 - 741 in Flying Fish - Ring galaxy AM 0644 - 741 in Volans - The annular galaxy AM 0644 - 741 is about 300 million years away - light from Earth. A collision with another galaxy causes its ring shape. This ring extends over 150,000 years - light and is composed of recently formed and extremely bright blue stars. Image obtained by the Hubble Space Telescope in January 2004. This galaxy, cataloged as AM 0644 - 741, is a member of the class of so - called “” ring galaxies.”” It lies 300 million light - years away in the direction of the southern constellation Volans. Ring galaxies are an especially striking example of how collisions between galaxies can dramatically change their structure, while also triggering the formation of new stars. In the case of AM 0644 - 741, the galaxy that pierced through the ring galaxy is out of the image but visible in larger - field images. The soft spiral galaxy that is visible to the left of the ring galaxy in the image is a coincidental ba

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Astronauts on Titan - Illustration - First steps on Titan - Astronauts explore Titan's surface. Perhaps some day in the far future humans will set foot on Saturn's mysterious moon Titan, one of the most interesting worlds in the Solar System. Larger than the planet Mercury, Earth's moon, and the dwarf planet Pluto, and second only in size to Jupiter's satellite Ganymede, Titan is the only known extraterrestrial world with a dense atmosphere that realistically could be visited by humans. A visit to Titan would require a space journey of a year or more and traverse over 700 million miles. Beneath Titan's 350 miles of atmosphere, intrepid explorers would likely find a dark, forbidding landscape of rock, ice, and possibly tarry layers of hydrocarbons and lakes of liquid ethane and/or methane (AKA natural gas). The Surface temperature would be around minus 300* F, cold enough to freeze exposed human tissue within seconds. There would be no oxygen to breathe, and any water to be found would

Astronauts on Titan - Illustration - First steps on Titan - Astronauts explore Titan's surface. Perhaps some day in the far future humans will set foot on Saturn's mysterious moon Titan, one of the most interesting worlds in the Solar System. Larger than the planet Mercury, Earth's moon, and the dwarf planet Pluto, and second only in size to Jupiter's satellite Ganymede, Titan is the only known extraterrestrial world with a dense atmosphere that realistically could be visited by humans. A visit to Titan would require a space journey of a year or more and traverse over 700 million miles. Beneath Titan's 350 miles of atmosphere, intrepid explorers would likely find a dark, forbidding landscape of rock, ice, and possibly tarry layers of hydrocarbons and lakes of liquid ethane and/or methane (AKA natural gas). The Surface temperature would be around minus 300* F, cold enough to freeze exposed human tissue within seconds. There would be no oxygen to breathe, and any water to be found would

Walter B Myers

PIX4626158

Nebula NGC 6726 - 27 - 29 in the Southern Crown - The Corona Australis nebula (NGC 6726 - 27 - 29) Image of R Coronae Australis region in the southern Milky Way, obtained with the Wide Field Imager (WFI) (camera) at the 2.2 - m MPG/ESO Telescope on La Silla (Chile). The sky field shown measures approx. 33.7 x 31.9 arcmin2 (about the diameter of the full moon). The R Coronae Australis complex of young stars and interstellar gas clouds is one of the nearest star - forming regions, at a distance of approx. 500 light - years from the Sun. It is seen in the southern constellation of that name (The “Southern Crown”). R Coronae Australis, the bright star from which the entire complex is named, is located at the center of the field and illuminates the reddish nebula around it. The bright star in the lower part, illuminating a somewhat bluer nebula, is known as TY Coronae Australis. The brightness of these two stars and several others in the same field is variable. They belong to the so - calle

Nebula NGC 6726 - 27 - 29 in the Southern Crown - The Corona Australis nebula (NGC 6726 - 27 - 29) Image of R Coronae Australis region in the southern Milky Way, obtained with the Wide Field Imager (WFI) (camera) at the 2.2 - m MPG/ESO Telescope on La Silla (Chile). The sky field shown measures approx. 33.7 x 31.9 arcmin2 (about the diameter of the full moon). The R Coronae Australis complex of young stars and interstellar gas clouds is one of the nearest star - forming regions, at a distance of approx. 500 light - years from the Sun. It is seen in the southern constellation of that name (The “Southern Crown”). R Coronae Australis, the bright star from which the entire complex is named, is located at the center of the field and illuminates the reddish nebula around it. The bright star in the lower part, illuminating a somewhat bluer nebula, is known as TY Coronae Australis. The brightness of these two stars and several others in the same field is variable. They belong to the so - calle

PIX4620222

Planetary nebula M57 (NGC 6720) in Lyra - The Ring nebula M57 in Lyra - The planetary nebula of Lyra (M57) is located about 2000 years - light from Earth. A planetary nebula is a gas shell from a small late-life star whose heart collapsed to become a white dwarf and expelled the outer layers of its matter. Image obtained by the Hubble Space Telescope and the Large Binocular Telescope. In this composite image, visible - light observations by Nasa's Hubble Space Telescope are combined with infrared data from the ground - based Large Binocular Telescope in Arizona to assemble a dramatic view of the well - known Ring Nebula. Called a planetary nebula, the Ring Nebula is the glowing remains of a Sun - like star. The object is tilted towards Earth so that astronomers see the ring face - on. The Hubble observations reveal that the nebula's shape is more complicated than astronomers thought. The blue gas in the nebula's center is actually a football - shaped structure that pierces the red doug

Planetary nebula M57 (NGC 6720) in Lyra - The Ring nebula M57 in Lyra - The planetary nebula of Lyra (M57) is located about 2000 years - light from Earth. A planetary nebula is a gas shell from a small late-life star whose heart collapsed to become a white dwarf and expelled the outer layers of its matter. Image obtained by the Hubble Space Telescope and the Large Binocular Telescope. In this composite image, visible - light observations by Nasa's Hubble Space Telescope are combined with infrared data from the ground - based Large Binocular Telescope in Arizona to assemble a dramatic view of the well - known Ring Nebula. Called a planetary nebula, the Ring Nebula is the glowing remains of a Sun - like star. The object is tilted towards Earth so that astronomers see the ring face - on. The Hubble observations reveal that the nebula's shape is more complicated than astronomers thought. The blue gas in the nebula's center is actually a football - shaped structure that pierces the red doug

PIX4623411

Centaurus A Elliptical Galaxy (NGC 5128) in the Centaur - Galaxy Centaurus A - The NGC 5128 galaxy is about 11 million years away - light from Earth. This image from the Hubble Space Telescope (HST) shows the star flames that occur in the dark band of the 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. Centaurus A, also known as NGC 5128, is well known for its dramatic dusty lanes of dark material. Hubble's observations, using its most advanced instrument, the Wide Field Camera 3, are the most detailed ever made of this galaxy. They have been combined here in a multi - wavelength image that reveals never - before - seen detail in the dusty portion of the galaxy. As well as features in the visible spectrum, this composite shows ultraviolet light from young stars, and near - infrared light, which lets us glimpse some of the detail otherwise obscured by the dust. The dark dust lane that cr

Centaurus A Elliptical Galaxy (NGC 5128) in the Centaur - Galaxy Centaurus A - The NGC 5128 galaxy is about 11 million years away - light from Earth. This image from the Hubble Space Telescope (HST) shows the star flames that occur in the dark band of the 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. Centaurus A, also known as NGC 5128, is well known for its dramatic dusty lanes of dark material. Hubble's observations, using its most advanced instrument, the Wide Field Camera 3, are the most detailed ever made of this galaxy. They have been combined here in a multi - wavelength image that reveals never - before - seen detail in the dusty portion of the galaxy. As well as features in the visible spectrum, this composite shows ultraviolet light from young stars, and near - infrared light, which lets us glimpse some of the detail otherwise obscured by the dust. The dark dust lane that cr

PIX4612191

Planetary nebula NGC 3242 ultraviolet view - Planetary nebula NGC 3242 seen in ultraviolet - The planetary nebula NGC 3242, also called the ghost of Jupiter, ultraviolet view by the GALEX satellite. NGC 3242 is located between 1400 and 2500 years - light of the Earth, in the constellation Hydra (hydra, or female hydra). This ultraviolet image from NASA's Galaxy Evolution Explorer (GALEX) shows NGC 3242, a planetary nebula frequently referred to as “” Jupiter's Ghost.””” When stars with a mass similar to our sun approach the end of their lives by exhausting supplies of hydrogen and helium fuel in their cores, they swell up into cool red - giant stars. In a last gasp before death, they expel the layers of gas in their outer atmosphere. This exposes the core of the dying star, a dense hot ball of carbon and oxygen called a white dwarf. The white dwarf is so hot that it shines very brightly in the ultraviolet. The ultraviolet light from the white dwarf, in turn, ionizes the gaseous materia

Planetary nebula NGC 3242 ultraviolet view - Planetary nebula NGC 3242 seen in ultraviolet - The planetary nebula NGC 3242, also called the ghost of Jupiter, ultraviolet view by the GALEX satellite. NGC 3242 is located between 1400 and 2500 years - light of the Earth, in the constellation Hydra (hydra, or female hydra). This ultraviolet image from NASA's Galaxy Evolution Explorer (GALEX) shows NGC 3242, a planetary nebula frequently referred to as “” Jupiter's Ghost.””” When stars with a mass similar to our sun approach the end of their lives by exhausting supplies of hydrogen and helium fuel in their cores, they swell up into cool red - giant stars. In a last gasp before death, they expel the layers of gas in their outer atmosphere. This exposes the core of the dying star, a dense hot ball of carbon and oxygen called a white dwarf. The white dwarf is so hot that it shines very brightly in the ultraviolet. The ultraviolet light from the white dwarf, in turn, ionizes the gaseous materia

PIX4622984

Remnants of Supernova of Vails - detail - Pencil Nebula (NGC 2376) - Remnants from a star that exploded thousands of years ago created a celestial abstract portrait, as captured in this image of the Pencil Nebula. Officially known as NGC 2736, the Pencil Nebula is part of the huge Vela supernova remnant, located in the southern constellation Vela. Discovered by Sir John Herschel in the 1840s, the nebula's linear appearance triggered its popular name. The nebula's shape suggests that it is part of the supernova shock wave that recently encountered a region of dense gas. It is this interaction that causes the nebula to glow, appearing like a rippled sheet. In this snapshot, astronomers are looking along the edge of the undulating sheet of gas. This view shows large, wispy filamentary structures, smaller bright knots of gas, and patches of diffuse gas. The Hubble Heritage Team used the Advanced Camera for Surveys in October 2002 to observe the nebula. The region of the Pencil Nebula captu

Remnants of Supernova of Vails - detail - Pencil Nebula (NGC 2376) - Remnants from a star that exploded thousands of years ago created a celestial abstract portrait, as captured in this image of the Pencil Nebula. Officially known as NGC 2736, the Pencil Nebula is part of the huge Vela supernova remnant, located in the southern constellation Vela. Discovered by Sir John Herschel in the 1840s, the nebula's linear appearance triggered its popular name. The nebula's shape suggests that it is part of the supernova shock wave that recently encountered a region of dense gas. It is this interaction that causes the nebula to glow, appearing like a rippled sheet. In this snapshot, astronomers are looking along the edge of the undulating sheet of gas. This view shows large, wispy filamentary structures, smaller bright knots of gas, and patches of diffuse gas. The Hubble Heritage Team used the Advanced Camera for Surveys in October 2002 to observe the nebula. The region of the Pencil Nebula captu

PIX4582819

Southern Crown Nebula - The Corona Australis nebula (NGC 6726 - 27 - 29) - R Coronae Australis is one of the closest and most intense star-forming regions; visible in the southern hemisphere, it is located about 500 years from Earth. R Coronae Australis is the star in the center of the image that illuminates a reddish nebula around it. Image obtained in Chile at the observatory of La Silla with the 2.2 meter MPG/ESO telescope. Image of R Coronae Australis region in the southern Milky Way, obtained with the Wide Field Imager (WFI) (camera) at the 2.2 - m MPG/ESO Telescope on La Silla (Chile). The R Coronae Australis complex of young stars and interstellar gas clouds is one of the nearest star - forming regions, at a distance of approx. 500 light - years from the Sun. It is seen in the southern constellation of that name (The “Southern Crown”). R Coronae Australis, the bright star from which the entire complex is named, is located at the center of the field and illuminates the reddish ne

Southern Crown Nebula - The Corona Australis nebula (NGC 6726 - 27 - 29) - R Coronae Australis is one of the closest and most intense star-forming regions; visible in the southern hemisphere, it is located about 500 years from Earth. R Coronae Australis is the star in the center of the image that illuminates a reddish nebula around it. Image obtained in Chile at the observatory of La Silla with the 2.2 meter MPG/ESO telescope. Image of R Coronae Australis region in the southern Milky Way, obtained with the Wide Field Imager (WFI) (camera) at the 2.2 - m MPG/ESO Telescope on La Silla (Chile). The R Coronae Australis complex of young stars and interstellar gas clouds is one of the nearest star - forming regions, at a distance of approx. 500 light - years from the Sun. It is seen in the southern constellation of that name (The “Southern Crown”). R Coronae Australis, the bright star from which the entire complex is named, is located at the center of the field and illuminates the reddish ne

PIX4620317

Barree spiral galaxy NGC 1097 in the Furnace - Barred spiral galaxy NGC 1097 in Fornax - Located at a distance of about 45 million years - light, NGC 1097 is the object of intense star formation and is an active core galaxy with a supermassive black hole in its heart. Image obtained by the Hubble Space Telescope (HST). The NASA/ESA Hubble Space Telescope provides us with a spectacular image of the bright star - forming ring that surrounds the heart of the barred spiral galaxy NGC 1097. In this image, the larger - scale structure of the galaxy is barely visible: its comparatively dim spiral arms, which surround its heart in a loose embrace, reach out beyond the edges of this frame. This face - on galaxy, lying 45 million light - years away from Earth in the southern constellation of Fornax (The Furnace), is particularly attractive for astronomers. NGC 1097 is a Seyfert galaxy. Lurking at the very centre of the galaxy, a supermassive black hole 100 million times the mass of our Sun is gr

Barree spiral galaxy NGC 1097 in the Furnace - Barred spiral galaxy NGC 1097 in Fornax - Located at a distance of about 45 million years - light, NGC 1097 is the object of intense star formation and is an active core galaxy with a supermassive black hole in its heart. Image obtained by the Hubble Space Telescope (HST). The NASA/ESA Hubble Space Telescope provides us with a spectacular image of the bright star - forming ring that surrounds the heart of the barred spiral galaxy NGC 1097. In this image, the larger - scale structure of the galaxy is barely visible: its comparatively dim spiral arms, which surround its heart in a loose embrace, reach out beyond the edges of this frame. This face - on galaxy, lying 45 million light - years away from Earth in the southern constellation of Fornax (The Furnace), is particularly attractive for astronomers. NGC 1097 is a Seyfert galaxy. Lurking at the very centre of the galaxy, a supermassive black hole 100 million times the mass of our Sun is gr

PIX4609655

Swan Lace - detail - This is an image of a small portion of the Cygnus Loop supernova remnant, taken with the Wide Field and Planetary Camera on Nasa's Hubble Space Telescope on April 24, 1991. The Cygnus Loop marks the edge of a bubble - like, expanding blast wave from a colossal stellar explosion which occurred about 15,000 years ago. The supernova blast wave is slamming into tenuous clouds of interstellar gas. This collision heats and compresses the gas, causing it to glow. The shock acts as a searchlight by revealing the structure of the interstellar medium. Hubble's detailed image shows the blast wave overrunning dense clumps of gas. Although HST can reveal details about as small as our Solar System, the clumps are still unresolvable. This means that they must be small enough to fit inside our Solar System, making them relatively small structures by interstellar standards. A bluish ribbon of light stretching left to right across the picture might be a knot of gas ejected by the su

Swan Lace - detail - This is an image of a small portion of the Cygnus Loop supernova remnant, taken with the Wide Field and Planetary Camera on Nasa's Hubble Space Telescope on April 24, 1991. The Cygnus Loop marks the edge of a bubble - like, expanding blast wave from a colossal stellar explosion which occurred about 15,000 years ago. The supernova blast wave is slamming into tenuous clouds of interstellar gas. This collision heats and compresses the gas, causing it to glow. The shock acts as a searchlight by revealing the structure of the interstellar medium. Hubble's detailed image shows the blast wave overrunning dense clumps of gas. Although HST can reveal details about as small as our Solar System, the clumps are still unresolvable. This means that they must be small enough to fit inside our Solar System, making them relatively small structures by interstellar standards. A bluish ribbon of light stretching left to right across the picture might be a knot of gas ejected by the su

PIX4582644

Brown dwarf star Teide 1 - Brown dwarf Teide 1 - Artist view of the brown dwarf star Teide 1. Discovered in 1995 in the Pleiades cluster, about 55 times the mass of Jupiter, this brown dwarf is represented here in the sky of a young exoplanet lit by the star. This is how Teide 1 might appear from the surface of a hypothetical, March - like planet. Discovered in 1995, Teide 1 is a type of mysterious object called a brown dwarf (failed star or super planet). Bigger than a planet, but smaller than a star, this brown dwarf is about 400 light years from the Earth in the Pleiades star cluster. It is thought that Teide 1 has the mass equivalent of about 55 Jupiters, which is considered large for a brown dwarf. Teide 1 is massive enough, and hence hot enough, to sustain lithium fusion in its core, but is unable to initiate hydrogen fusion like our sun. Teide 1 is probably only about 120 million years old (compared to our sun's age of 4.5 billion years) and shines at a temperature of 4,000o F,

Brown dwarf star Teide 1 - Brown dwarf Teide 1 - Artist view of the brown dwarf star Teide 1. Discovered in 1995 in the Pleiades cluster, about 55 times the mass of Jupiter, this brown dwarf is represented here in the sky of a young exoplanet lit by the star. This is how Teide 1 might appear from the surface of a hypothetical, March - like planet. Discovered in 1995, Teide 1 is a type of mysterious object called a brown dwarf (failed star or super planet). Bigger than a planet, but smaller than a star, this brown dwarf is about 400 light years from the Earth in the Pleiades star cluster. It is thought that Teide 1 has the mass equivalent of about 55 Jupiters, which is considered large for a brown dwarf. Teide 1 is massive enough, and hence hot enough, to sustain lithium fusion in its core, but is unable to initiate hydrogen fusion like our sun. Teide 1 is probably only about 120 million years old (compared to our sun's age of 4.5 billion years) and shines at a temperature of 4,000o F,

Walter B Myers

PIX4572545

Open cluster Westerlund 2 in Carene - Open cluster Westerlund 2 in Carina - The open cluster Westerlund 2 is located about 20,000 years - light in the southern constellation of Carene, within the nebula Gum 29. About 3000 stars form this cluster. It contains a significant number of massive stars including one of the most massive stars known to date: WR 20a. Image obtained by the Hubble Space Telescope. The sparkling centerpiece of this image taken by the Hubble space telescope is a giant cluster of about 3,000 stars called Westerlund 2, named for Swedish astronomer Bengt Westerlund, who discovered the grouping in the 1960s. The cluster resides in a raucous stellar breeding ground known as Gum 29, located 20,000 light - years away from Earth in the constellation Carina. To capture this image, Hubble's near - infrared Wide Field Camera 3 near - infrared pierced through the dusty veil shrouding the stellar nursery, giving astronomers a clear view of the nebula and the dense concentration

Open cluster Westerlund 2 in Carene - Open cluster Westerlund 2 in Carina - The open cluster Westerlund 2 is located about 20,000 years - light in the southern constellation of Carene, within the nebula Gum 29. About 3000 stars form this cluster. It contains a significant number of massive stars including one of the most massive stars known to date: WR 20a. Image obtained by the Hubble Space Telescope. The sparkling centerpiece of this image taken by the Hubble space telescope is a giant cluster of about 3,000 stars called Westerlund 2, named for Swedish astronomer Bengt Westerlund, who discovered the grouping in the 1960s. The cluster resides in a raucous stellar breeding ground known as Gum 29, located 20,000 light - years away from Earth in the constellation Carina. To capture this image, Hubble's near - infrared Wide Field Camera 3 near - infrared pierced through the dusty veil shrouding the stellar nursery, giving astronomers a clear view of the nebula and the dense concentration

PIX4569094

Planetary nebula myCN18 dans la Mouche/HST - This is an image of MyCN18, a young planetary nebula located about 8,000 light - years away, taken with the Wide Field and Planetary Camera 2 (WFPC2) aboard Nasa's Hubble Space Telescope (HST). This picture has been composed from three separate images taken in the light of ionized nitrogen (represented by red), hydrogen (green), and doubly - ionized oxygen (blue). The results are of great interest because they shed new light on the poorly understood ejection of stellar matter which accompanies the slow death of Sun - like stars. According to one theory for the formation of planetary nebulae, the hourglass shape is produced by the expansion of a fast stellar wind within a slowly expanding cloud which is more dense near its equator than near its poles. What appears as a bright elliptical ring in the center, and at first sight might be mistaken for an equatorially dense region, is seen on closer inspection to be a potato shaped structure with a

Planetary nebula myCN18 dans la Mouche/HST - This is an image of MyCN18, a young planetary nebula located about 8,000 light - years away, taken with the Wide Field and Planetary Camera 2 (WFPC2) aboard Nasa's Hubble Space Telescope (HST). This picture has been composed from three separate images taken in the light of ionized nitrogen (represented by red), hydrogen (green), and doubly - ionized oxygen (blue). The results are of great interest because they shed new light on the poorly understood ejection of stellar matter which accompanies the slow death of Sun - like stars. According to one theory for the formation of planetary nebulae, the hourglass shape is produced by the expansion of a fast stellar wind within a slowly expanding cloud which is more dense near its equator than near its poles. What appears as a bright elliptical ring in the center, and at first sight might be mistaken for an equatorially dense region, is seen on closer inspection to be a potato shaped structure with a

PIX4623735

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

Brown dwarf around the red dwarf star Gliese 229 - Brown dwarf around red dwarf Gliese 229 - First false-colored image of a brown dwarf. With a mass of 20 to 50 times that of Jupiter, but of a diameter equivalent to the gas planet, GL229B, is orbiting around the red dwarf star Gliese 229, about 18 years - light from Earth in the constellation Lievre. On the left, the observation made from the ground in adaptive optics at Mount Palomar, October 27, 1994. On the right, the image obtained by the Hubble space telescope on November 17, 1995. These two false - color telescope images reveal the faintest object ever seen around a star beyond our Sun, and the first unambiguous detection of a brown dwarf. The brown dwarf, called GL229B, orbits the red dwarf star Gliese 229, located approximately 18 light - years away in the constellation Lepus. The brown dwarf is about 20 - 50 times the mass of Jupiter, but is so dense it is about the same diameter as Jupiter (80,000 miles). Brown dwarfs are a m

Brown dwarf around the red dwarf star Gliese 229 - Brown dwarf around red dwarf Gliese 229 - First false-colored image of a brown dwarf. With a mass of 20 to 50 times that of Jupiter, but of a diameter equivalent to the gas planet, GL229B, is orbiting around the red dwarf star Gliese 229, about 18 years - light from Earth in the constellation Lievre. On the left, the observation made from the ground in adaptive optics at Mount Palomar, October 27, 1994. On the right, the image obtained by the Hubble space telescope on November 17, 1995. These two false - color telescope images reveal the faintest object ever seen around a star beyond our Sun, and the first unambiguous detection of a brown dwarf. The brown dwarf, called GL229B, orbits the red dwarf star Gliese 229, located approximately 18 light - years away in the constellation Lepus. The brown dwarf is about 20 - 50 times the mass of Jupiter, but is so dense it is about the same diameter as Jupiter (80,000 miles). Brown dwarfs are a m

PIX4572124

Detail of the nebula NGC 3324 in the Carene - Detail of nebula NGC 3324 in Carina - Detail of the nebula NGC 3324 obtained by the Hubble space telescope. This nebula is located in the southern hemisphere, close to the great Carene nebula about 7200 light years from Earth. The image obtained by the Hubble Space Telescope shows a gas wall at the edge of a cavite created by the radiation and stellar winds blown by young warm stars. Hubble space telescope image shows the edge of a giant gaseous cavity within the star - forming region called NGC 3324. The glowing nebula has been carved out by intense ultraviolet radiation and stellar winds from several hot, young stars. A cluster of extremely massive stars, located well outside this image in the center of the nebula, is responsible for the ionization of the nebula and excavation of the cavity. The image also reveals dramatic dark towers of cool gas and dust that rise above the glowing wall of gas. The dense gas at the top resists the bliste

Detail of the nebula NGC 3324 in the Carene - Detail of nebula NGC 3324 in Carina - Detail of the nebula NGC 3324 obtained by the Hubble space telescope. This nebula is located in the southern hemisphere, close to the great Carene nebula about 7200 light years from Earth. The image obtained by the Hubble Space Telescope shows a gas wall at the edge of a cavite created by the radiation and stellar winds blown by young warm stars. Hubble space telescope image shows the edge of a giant gaseous cavity within the star - forming region called NGC 3324. The glowing nebula has been carved out by intense ultraviolet radiation and stellar winds from several hot, young stars. A cluster of extremely massive stars, located well outside this image in the center of the nebula, is responsible for the ionization of the nebula and excavation of the cavity. The image also reveals dramatic dark towers of cool gas and dust that rise above the glowing wall of gas. The dense gas at the top resists the bliste

PIX4618883

Planetary nebula NGC 6369 in Ophiuchus/HST - NGC 6369 is known to amateur astronomers as the “” Little Ghost Nebula,”” because it appears as a small, ghostly cloud surrounding the faint, dying central star. NGC 6369 lies in the direction of the constellation Ophiuchus, at a distance estimated to be between about 2,000 and 5,000 light - years from Earth. When a star with a mass similar to that of our own Sun nears the end of its lifetime, it expands in size to become a red giant. The red - giant stage ends when the star expels its outer layers into space, producing a faintly glowing nebula. Astronomers call such an object a planetary nebula, because its round shape resembles that of a planet when viewed with a small telescope. The Hubble photograph of NGC 6369, captured with the Wide Field Planetary Camera 2 (WFPC2) in February 2002, reveals remarkable details of the ejection process that are not visible from ground - based telescopes because of the blurring produced by the Earth's atmo

Planetary nebula NGC 6369 in Ophiuchus/HST - NGC 6369 is known to amateur astronomers as the “” Little Ghost Nebula,”” because it appears as a small, ghostly cloud surrounding the faint, dying central star. NGC 6369 lies in the direction of the constellation Ophiuchus, at a distance estimated to be between about 2,000 and 5,000 light - years from Earth. When a star with a mass similar to that of our own Sun nears the end of its lifetime, it expands in size to become a red giant. The red - giant stage ends when the star expels its outer layers into space, producing a faintly glowing nebula. Astronomers call such an object a planetary nebula, because its round shape resembles that of a planet when viewed with a small telescope. The Hubble photograph of NGC 6369, captured with the Wide Field Planetary Camera 2 (WFPC2) in February 2002, reveals remarkable details of the ejection process that are not visible from ground - based telescopes because of the blurring produced by the Earth's atmo

PIX4623194

Stars cluster in the Nebula of the Eagle - Young stars in the Eagle nebula - Detail on young stars located in the cluster of stars NGC 6611 of the Nebula of the Eagle (M16). Image obtained by the Hubble Space Telescope. A spectacular section of the well - known Eagle Nebula has been targeted by the NASA/ESA Hubble Space Telescope. This collection of dazzling stars is called NGC 6611, an open star cluster that formed about 5.5 million years ago and is found approximately 6500 light - years from the Earth. It is a very young cluster, containing many hot, blue stars, whose fierce ultraviolet glow make the surrounding Eagle Nebula glow brightly. The cluster and the associated nebula together are also known as Messier 16. Astronomers refer to areas like the Eagle Nebula as HII regions. This is the scientific notation for ionised hydrogen from which the region is largely made. Extrapolating far into the future, this HII region will eventually disperse, helped along by shockwaves from superno

Stars cluster in the Nebula of the Eagle - Young stars in the Eagle nebula - Detail on young stars located in the cluster of stars NGC 6611 of the Nebula of the Eagle (M16). Image obtained by the Hubble Space Telescope. A spectacular section of the well - known Eagle Nebula has been targeted by the NASA/ESA Hubble Space Telescope. This collection of dazzling stars is called NGC 6611, an open star cluster that formed about 5.5 million years ago and is found approximately 6500 light - years from the Earth. It is a very young cluster, containing many hot, blue stars, whose fierce ultraviolet glow make the surrounding Eagle Nebula glow brightly. The cluster and the associated nebula together are also known as Messier 16. Astronomers refer to areas like the Eagle Nebula as HII regions. This is the scientific notation for ionised hydrogen from which the region is largely made. Extrapolating far into the future, this HII region will eventually disperse, helped along by shockwaves from superno

PIX4620069

Supernova Sn 2004dj in the galaxy NGC 2403 - The explosion of a massive star blazes with the light of 200 million Suns in this NASA Hubble Space Telescope image. The supernova is so bright in this image that it easily could be mistaken for a foreground star in our Milky Way Galaxy. And yet, this supernova, called SN 2004dj, resides far beyond our galaxy. Its home is in the outskirts of NGC 2403, a galaxy located 11 million light - years from Earth. Although the supernova is far from Earth, it is the closest stellar explosion discovered in more than a decade. The star that became SN 2004dj may have been about 15 times as massive as the Sun, and only about 14 million years old. (Massive stars live much shorter lives than the Sun; they have more fuel to “” burn”” through nuclear fusion, but they use it up at a disproportionately faster rate.) The large number of massive stars in NGC 2403 leads to a high supernova rate. Two other supernovae have been seen in this galaxy during the past hal

Supernova Sn 2004dj in the galaxy NGC 2403 - The explosion of a massive star blazes with the light of 200 million Suns in this NASA Hubble Space Telescope image. The supernova is so bright in this image that it easily could be mistaken for a foreground star in our Milky Way Galaxy. And yet, this supernova, called SN 2004dj, resides far beyond our galaxy. Its home is in the outskirts of NGC 2403, a galaxy located 11 million light - years from Earth. Although the supernova is far from Earth, it is the closest stellar explosion discovered in more than a decade. The star that became SN 2004dj may have been about 15 times as massive as the Sun, and only about 14 million years old. (Massive stars live much shorter lives than the Sun; they have more fuel to “” burn”” through nuclear fusion, but they use it up at a disproportionately faster rate.) The large number of massive stars in NGC 2403 leads to a high supernova rate. Two other supernovae have been seen in this galaxy during the past hal

PIX4582457

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