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Images de 'White Light' médias trouvés, 10,485

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Stars in the globular cluster Omega Centauri - Omega Centauri seen by Hubble space telescope - Located 16,000 years ago - light from Earth in the southern constellation of Centaur, Omega Centauri contains several million stars and is one of the most ancient objects in our galaxy. This image obtained by the Hubble Space Telescope in July 2009 shows only a small part of this cluster, where 100,000 stars are visible. Hubble Space Telescope snapped this panoramic view of a colorful assortment of 100,000 stars residing in the crowded core of a giant star cluster. The image reveals a small region inside the massive globular cluster Omega Centauri, which boasts nearly 10 million stars. The stars in Omega Centauri are between 10 billion and 12 billion years old. The cluster lies about 16,000 light - years from Earth. This is one of the first images taken by the new Wide Field Camera 3 (WFC3), installed aboard Hubble in May 2009, during Servicing Mission 4. The majority of the stars in the imag

Stars in the globular cluster Omega Centauri - Omega Centauri seen by Hubble space telescope - Located 16,000 years ago - light from Earth in the southern constellation of Centaur, Omega Centauri contains several million stars and is one of the most ancient objects in our galaxy. This image obtained by the Hubble Space Telescope in July 2009 shows only a small part of this cluster, where 100,000 stars are visible. Hubble Space Telescope snapped this panoramic view of a colorful assortment of 100,000 stars residing in the crowded core of a giant star cluster. The image reveals a small region inside the massive globular cluster Omega Centauri, which boasts nearly 10 million stars. The stars in Omega Centauri are between 10 billion and 12 billion years old. The cluster lies about 16,000 light - years from Earth. This is one of the first images taken by the new Wide Field Camera 3 (WFC3), installed aboard Hubble in May 2009, during Servicing Mission 4. The majority of the stars in the imag

PIX4564450

Mars surface seen by the rover Curiosity 09/2015 - Martian surface seen from the rover Curiosity 09/2015: Panorama of the surface of Mars on Mount Sharp. Mosaic of images obtained by the rover Curiosity on September 9, 2015. This composite image looking toward the higher regions of Mount Sharp was taken on September 9, 2015, by Nasa's Curiosity rover. In the foreground - about 2 miles (3 kilometers) from the rover - is a long ridge teeming with hematite, an iron oxide. Just beyond is an undulating plain rich in clay minerals. And just beyond that are a multitude of rounded buttes, all high in sulfate minerals. The changing mineralogy in these layers of Mount Sharp suggests a changing environment in early Mars, though all involve exposure to water billions of years ago. Further back in the image are striking, light-toned cliffs in rock that may have formed in drier times and now is heavily eroded by winds. The colors are adjusted so that rocks look approximately as they would if they we

Mars surface seen by the rover Curiosity 09/2015 - Martian surface seen from the rover Curiosity 09/2015: Panorama of the surface of Mars on Mount Sharp. Mosaic of images obtained by the rover Curiosity on September 9, 2015. This composite image looking toward the higher regions of Mount Sharp was taken on September 9, 2015, by Nasa's Curiosity rover. In the foreground - about 2 miles (3 kilometers) from the rover - is a long ridge teeming with hematite, an iron oxide. Just beyond is an undulating plain rich in clay minerals. And just beyond that are a multitude of rounded buttes, all high in sulfate minerals. The changing mineralogy in these layers of Mount Sharp suggests a changing environment in early Mars, though all involve exposure to water billions of years ago. Further back in the image are striking, light-toned cliffs in rock that may have formed in drier times and now is heavily eroded by winds. The colors are adjusted so that rocks look approximately as they would if they we

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Globular cluster M13 - Hercules cluster - The Great Globular Cluster in Hercules M13 - M13 (NGC 6205), extends for about 150 years - light and is approximately 25,000 years - light from Earth in the constellation of Hercules. Image obtained by the Hubble Space Telescope. M13 is home to over 100,000 stars and located at a distance of 25,000 light - years. These stars are packed so closely together in a ball, approximately 150 light - years across, that they will spend their entire lives whirling around in the cluster. Near the core of this cluster, the density of stars is about a hundred times greater than the density in the neighborhood of our sun. These stars are so crowded that they can, at times, slam into each other and even form a new star, called a “blue straggler.” The brightest reddish stars in the cluster are ancient red giants. These aging stars have expanded to many times their original diameters and cooled. The blue - white stars are the hottest in the cluster. Globular clu

Globular cluster M13 - Hercules cluster - The Great Globular Cluster in Hercules M13 - M13 (NGC 6205), extends for about 150 years - light and is approximately 25,000 years - light from Earth in the constellation of Hercules. Image obtained by the Hubble Space Telescope. M13 is home to over 100,000 stars and located at a distance of 25,000 light - years. These stars are packed so closely together in a ball, approximately 150 light - years across, that they will spend their entire lives whirling around in the cluster. Near the core of this cluster, the density of stars is about a hundred times greater than the density in the neighborhood of our sun. These stars are so crowded that they can, at times, slam into each other and even form a new star, called a “blue straggler.” The brightest reddish stars in the cluster are ancient red giants. These aging stars have expanded to many times their original diameters and cooled. The blue - white stars are the hottest in the cluster. Globular clu

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Oct. 10, 1954 - Batsman Is Replaced By Mirror: In use on British aircraft carriers is a new invention which is expected to replace that familiar flight deck figure, the” batsman” It consists of a large curved mirror which the pilot watches when he approaches the carrier from astern. A blob of light is projected into this mirror from a group of lights in the afterpart of the carrier, and if t he pilot keeps this blob in line with a row of lights on either side of the mirror he is sure of landing at the correct angle to the deck

Oct. 10, 1954 - Batsman Is Replaced By Mirror: In use on British aircraft carriers is a new invention which is expected to replace that familiar flight deck figure, the” batsman” It consists of a large curved mirror which the pilot watches when he approaches the carrier from astern. A blob of light is projected into this mirror from a group of lights in the afterpart of the carrier, and if t he pilot keeps this blob in line with a row of lights on either side of the mirror he is sure of landing at the correct angle to the deck

ZUM4943272

The Rho Ophiuchi nebula seen in infrared - Rho Ophiuchi in infrared - This coloree nebula represents part of a very vast molecular cloud, the Ophiuchus cloud. This star-forming region is about 520 years old - light. The triple star Rho Ophiuchus is located in the top center of the image. Below, a very bright nebula is visible, accompanied by a group of very young stars. At the bottom right, surrounded by a reddish nebula, the star Sigma Scorpii. The globular clusters NGC 6144 (bottom, center of the image) and M80 (top right of the image) are also visible on this infrared image obtained from the Wide - field Infrared Explorer (WISE) satellite. A rich collection of colorful astronomical objects is revealed in this picturesque image of the Rho Ophiuchi cloud complex from Nasa's Wide - field Infrared Explorer, or WISE. The Rho Ophiuchi cloud (pronounced 'oh - fee - yoo - ki' and named after a bright star in the region) is found rising above the plane of the Milky Way in the night sky, bord

The Rho Ophiuchi nebula seen in infrared - Rho Ophiuchi in infrared - This coloree nebula represents part of a very vast molecular cloud, the Ophiuchus cloud. This star-forming region is about 520 years old - light. The triple star Rho Ophiuchus is located in the top center of the image. Below, a very bright nebula is visible, accompanied by a group of very young stars. At the bottom right, surrounded by a reddish nebula, the star Sigma Scorpii. The globular clusters NGC 6144 (bottom, center of the image) and M80 (top right of the image) are also visible on this infrared image obtained from the Wide - field Infrared Explorer (WISE) satellite. A rich collection of colorful astronomical objects is revealed in this picturesque image of the Rho Ophiuchi cloud complex from Nasa's Wide - field Infrared Explorer, or WISE. The Rho Ophiuchi cloud (pronounced 'oh - fee - yoo - ki' and named after a bright star in the region) is found rising above the plane of the Milky Way in the night sky, bord

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Globular cluster M13 - Hercules cluster - The Great Globular Cluster in Hercules M13 - M13 (NGC 6205), extends for about 150 years - light and is approximately 25,000 years - light from Earth in the constellation of Hercules. Image obtained by the Hubble Space Telescope. M13 is home to over 100,000 stars and located at a distance of 25,000 light - years. These stars are packed so closely together in a ball, approximately 150 light - years across, that they will spend their entire lives whirling around in the cluster. Near the core of this cluster, the density of stars is about a hundred times greater than the density in the neighborhood of our sun. These stars are so crowded that they can, at times, slam into each other and even form a new star, called a “blue straggler.” The brightest reddish stars in the cluster are ancient red giants. These aging stars have expanded to many times their original diameters and cooled. The blue - white stars are the hottest in the cluster. Globular clu

Globular cluster M13 - Hercules cluster - The Great Globular Cluster in Hercules M13 - M13 (NGC 6205), extends for about 150 years - light and is approximately 25,000 years - light from Earth in the constellation of Hercules. Image obtained by the Hubble Space Telescope. M13 is home to over 100,000 stars and located at a distance of 25,000 light - years. These stars are packed so closely together in a ball, approximately 150 light - years across, that they will spend their entire lives whirling around in the cluster. Near the core of this cluster, the density of stars is about a hundred times greater than the density in the neighborhood of our sun. These stars are so crowded that they can, at times, slam into each other and even form a new star, called a “blue straggler.” The brightest reddish stars in the cluster are ancient red giants. These aging stars have expanded to many times their original diameters and cooled. The blue - white stars are the hottest in the cluster. Globular clu

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Planetary nebula Shapley 1 in the Rule - The planetary nebula Shapley 1 - This planetary nebula is located about 1000 years ago - light. Image obtained from the 3.9m telescope of Siding Spring This is an unusual annular planetary nebula in Norma. The nebula itself appears quite small at a little over an arc minute in diameter, while its central star is a magnitude 14 white dwarf. This object is unusual because those planetaries that are not bipolar are more or less spherical shells of material thrown off by the central star as it undergoes an internal rearrangement. We often see them as thick annuli because we look through a greater thickness at the edge of the shell. However, Shapley 1 seems to be a true torus, a doughnut - shaped ring of material that we happen to see face - on around the central star. Sp - 1 is about 1000 light years distant

Planetary nebula Shapley 1 in the Rule - The planetary nebula Shapley 1 - This planetary nebula is located about 1000 years ago - light. Image obtained from the 3.9m telescope of Siding Spring This is an unusual annular planetary nebula in Norma. The nebula itself appears quite small at a little over an arc minute in diameter, while its central star is a magnitude 14 white dwarf. This object is unusual because those planetaries that are not bipolar are more or less spherical shells of material thrown off by the central star as it undergoes an internal rearrangement. We often see them as thick annuli because we look through a greater thickness at the edge of the shell. However, Shapley 1 seems to be a true torus, a doughnut - shaped ring of material that we happen to see face - on around the central star. Sp - 1 is about 1000 light years distant

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Variable star Mira Ceti view in ultraviolet - Star Mira Ceti seen in ultraviolet - Ultraviolet view of the star Mira of the Whale revealing a long train of material ejected by the large red star. This trail extends over 13 years - light. Mosaic of images obtained by the Galex satellite in November and December 2006. Ultraviolet image of the star Mira taken with the Galex satellite in November and December 2006. In this image, Mira is moving from left to right. It is visible as the small white dot in the bulb shape at right. The shed material can be seen in light blue. The dots in the picture are stars and distant galaxies. The large blue dot at left is a star that is closer to us than Mira. Mira is traveling so fast (130 kilometers per second) that it's creating a bow shock, or build - up of gas, in front of it, as can be seen here at right

Variable star Mira Ceti view in ultraviolet - Star Mira Ceti seen in ultraviolet - Ultraviolet view of the star Mira of the Whale revealing a long train of material ejected by the large red star. This trail extends over 13 years - light. Mosaic of images obtained by the Galex satellite in November and December 2006. Ultraviolet image of the star Mira taken with the Galex satellite in November and December 2006. In this image, Mira is moving from left to right. It is visible as the small white dot in the bulb shape at right. The shed material can be seen in light blue. The dots in the picture are stars and distant galaxies. The large blue dot at left is a star that is closer to us than Mira. Mira is traveling so fast (130 kilometers per second) that it's creating a bow shock, or build - up of gas, in front of it, as can be seen here at right

PIX4572330

Barree spiral galaxy NGC 1559 and supernova - Barred spiral galaxy NGC 1559 with a supernova - The galaxy NGC 1559 is a galaxy of Seyfert located about 50 million years ago - light in the constellation Reticule. In this image obtained in 2005 by the Kueyen European telescope of the VLT in Chile, a bright star is visible just above the galaxy, a supernova of type Ia named SN 2005df. On the night of August 4, 2005, an amateur astronomer and supernovae discoverer Reverend Robert Evans discovered a supernova just North of this galaxy. This supernova is classified as a somewhat unusual type Ia supernova, caught probably 10 days before it reached its maximum brightness. Such a supernova is thought to be the result of the explosion of a small and dense star - a white dwarf - inside a binary system. As its companion was continuously spilling matter onto the white dwarf, the white dwarf reached a critical mass, leading to a fatal instability. NGC 1559 is a SBc (s) - type spiral galaxy located a

Barree spiral galaxy NGC 1559 and supernova - Barred spiral galaxy NGC 1559 with a supernova - The galaxy NGC 1559 is a galaxy of Seyfert located about 50 million years ago - light in the constellation Reticule. In this image obtained in 2005 by the Kueyen European telescope of the VLT in Chile, a bright star is visible just above the galaxy, a supernova of type Ia named SN 2005df. On the night of August 4, 2005, an amateur astronomer and supernovae discoverer Reverend Robert Evans discovered a supernova just North of this galaxy. This supernova is classified as a somewhat unusual type Ia supernova, caught probably 10 days before it reached its maximum brightness. Such a supernova is thought to be the result of the explosion of a small and dense star - a white dwarf - inside a binary system. As its companion was continuously spilling matter onto the white dwarf, the white dwarf reached a critical mass, leading to a fatal instability. NGC 1559 is a SBc (s) - type spiral galaxy located a

PIX4609916

Glacier Malaspina, Alaska - The Malaspina Glacier in Alaska - Le Glacier Malaspina, Alaska, from perspective. This image is the result of joint observations made by the Landsat-7 satellite in August 2000 in visible and infrared, combined with elevation radar data obtained by the SRTM (Shuttle Radar Topography Mission) in February 2000. This glacier extends over 3000 km2. Natural colours have been applied to this image: light blue, ice, white, snow, green vegetation, grey rock and blue for the ocean. Malaspina Glacier in southeastern Alaska is considered the classic example of a piedmont glacier. Piedmont glaciers occur where valley glaciers exit a mountain range onto broad lowlands, are no longer laterally confined, and spread to become wide lobes. Malaspina Glacier is actually a compound glacier, formed by the merger of several valley glaciers, the most prominent of which seen here are Agassiz Glacier (left) and Seward Glacier (right). In total, Malaspina Glacier is up to 65 kilometer

Glacier Malaspina, Alaska - The Malaspina Glacier in Alaska - Le Glacier Malaspina, Alaska, from perspective. This image is the result of joint observations made by the Landsat-7 satellite in August 2000 in visible and infrared, combined with elevation radar data obtained by the SRTM (Shuttle Radar Topography Mission) in February 2000. This glacier extends over 3000 km2. Natural colours have been applied to this image: light blue, ice, white, snow, green vegetation, grey rock and blue for the ocean. Malaspina Glacier in southeastern Alaska is considered the classic example of a piedmont glacier. Piedmont glaciers occur where valley glaciers exit a mountain range onto broad lowlands, are no longer laterally confined, and spread to become wide lobes. Malaspina Glacier is actually a compound glacier, formed by the merger of several valley glaciers, the most prominent of which seen here are Agassiz Glacier (left) and Seward Glacier (right). In total, Malaspina Glacier is up to 65 kilometer

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Mars - View of the south pole - Mars South pole - Image of part of the southern polar cap of Mars obtained by the Mars Express probe on December 17, 2012. The bright white region of this image shows the icy cap that covers Mars' south pole, composed of frozen water and carbon dioxide. While it looks smooth in this image, at close quarters the cap is a layered mix of peaks, troughs and flat plains, and has been likened in appearance to swiss cheese. The southern cap reaches some 3 km thick in places, and is around 350 km in diameter. This icy region is permanent; in the martian winter another, thinner ice cap forms over the top of it, stretching further out across the planet and disappearing again when the weather warms up. The cap is around 150 km north of Mars' geographical south pole and Mars Express has shed light on why this ice cap is displaced. Deep impact craters - notably the Hellas Basin, the largest impact structure on the entire planet at 7 km deep and 2300 km across - funne

Mars - View of the south pole - Mars South pole - Image of part of the southern polar cap of Mars obtained by the Mars Express probe on December 17, 2012. The bright white region of this image shows the icy cap that covers Mars' south pole, composed of frozen water and carbon dioxide. While it looks smooth in this image, at close quarters the cap is a layered mix of peaks, troughs and flat plains, and has been likened in appearance to swiss cheese. The southern cap reaches some 3 km thick in places, and is around 350 km in diameter. This icy region is permanent; in the martian winter another, thinner ice cap forms over the top of it, stretching further out across the planet and disappearing again when the weather warms up. The cap is around 150 km north of Mars' geographical south pole and Mars Express has shed light on why this ice cap is displaced. Deep impact craters - notably the Hellas Basin, the largest impact structure on the entire planet at 7 km deep and 2300 km across - funne

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Remains of the supernova Cassiopee A/HST - Cassiopeia A: Colorful, Shredded Remains of Old Supernova Glowing gaseous streamers of red, white, and blue - - as well as green and pink - - illuminate the heavens like Fourth of July fireworks. The colorful streamers that float across the sky in this photo taken by Nasa's Hubble Space Telescope were created by one of the biggest firecrackers seen to go off in our galaxy in recorded history, the titanic supernova explosion of a massive star. The light from the exploding star reached Earth 320 years ago, nearly a century before our United States celebrated its birth with a blow. The dead star's shredded remains are called Cassiopeia A, or “” Cas A”” for short. Cas A is the youngest known supernova remnant in our Milky Way Galaxy and resides 10,000 light - years away in the constellation Cassiopeia, so the star actually blew up 10,000 years before the light reached Earth in the late 1600s. This stunning Hubble image of Cas A is allowing astrono

Remains of the supernova Cassiopee A/HST - Cassiopeia A: Colorful, Shredded Remains of Old Supernova Glowing gaseous streamers of red, white, and blue - - as well as green and pink - - illuminate the heavens like Fourth of July fireworks. The colorful streamers that float across the sky in this photo taken by Nasa's Hubble Space Telescope were created by one of the biggest firecrackers seen to go off in our galaxy in recorded history, the titanic supernova explosion of a massive star. The light from the exploding star reached Earth 320 years ago, nearly a century before our United States celebrated its birth with a blow. The dead star's shredded remains are called Cassiopeia A, or “” Cas A”” for short. Cas A is the youngest known supernova remnant in our Milky Way Galaxy and resides 10,000 light - years away in the constellation Cassiopeia, so the star actually blew up 10,000 years before the light reached Earth in the late 1600s. This stunning Hubble image of Cas A is allowing astrono

PIX4582924

Planetary nebula M57 (NGC 6720) in Lyra - M57 (NGC 6720) planetary nebula in Lyra - The planetary nebula of Lyra (M57) is located about 2000 years - light from Earth. With a magnitude of 9.0, this nebula is easily observed with a small telescope. 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. Composite image obtained by different telescopes. The Ring Nebula, M57, is the most famous example of a planetary nebula. Located about 2,000 light years away, it has an apparent diameter of 1 arc minute and a real diameter of about one light year. At magnitude 9.0 its high surface brightness makes it an easy object, even from the city and even with small telescopes. Planetary nebula are shells of gas shed by stars late in their life cycles after using up all of their nuclear fuel. The star then ejects a significant portion of its mass in a gaseous shell, which is illuminated by its extremely

Planetary nebula M57 (NGC 6720) in Lyra - M57 (NGC 6720) planetary nebula in Lyra - The planetary nebula of Lyra (M57) is located about 2000 years - light from Earth. With a magnitude of 9.0, this nebula is easily observed with a small telescope. 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. Composite image obtained by different telescopes. The Ring Nebula, M57, is the most famous example of a planetary nebula. Located about 2,000 light years away, it has an apparent diameter of 1 arc minute and a real diameter of about one light year. At magnitude 9.0 its high surface brightness makes it an easy object, even from the city and even with small telescopes. Planetary nebula are shells of gas shed by stars late in their life cycles after using up all of their nuclear fuel. The star then ejects a significant portion of its mass in a gaseous shell, which is illuminated by its extremely

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Sandy Cay - Bahamas - Seabed currents and sandbanks on Sandy Cay and Long Island, Bahamas. Image obtained on 27 November 2010 from the International Space Station (ISS). This astronaut photograph, taken from the International space station on November 27, 2010, provides a view of tidal flats and channels near Sandy Cay, on the western side of Long Island and along the eastern margin of the Great Bahama Bank (North is top). The continuously exposed parts of the island are brown, a result of soil formation and vegetation growth. To the north of Sandy Cay, an off - white tidal flat composed of carbonate sediments is visible; light blue - green regions indicate shallow water on the tidal flat. The tidal flow of seawater is concentrated through gaps in the land surface, leading to the formation of relatively deep channels that cut into the sediments. The channels and areas to the south of the island have a vivid blue color that indicates deeper water

Sandy Cay - Bahamas - Seabed currents and sandbanks on Sandy Cay and Long Island, Bahamas. Image obtained on 27 November 2010 from the International Space Station (ISS). This astronaut photograph, taken from the International space station on November 27, 2010, provides a view of tidal flats and channels near Sandy Cay, on the western side of Long Island and along the eastern margin of the Great Bahama Bank (North is top). The continuously exposed parts of the island are brown, a result of soil formation and vegetation growth. To the north of Sandy Cay, an off - white tidal flat composed of carbonate sediments is visible; light blue - green regions indicate shallow water on the tidal flat. The tidal flow of seawater is concentrated through gaps in the land surface, leading to the formation of relatively deep channels that cut into the sediments. The channels and areas to the south of the island have a vivid blue color that indicates deeper water

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Exoplanete PSR B1620-26 b - Mathusalem - Exoplanet PSR B1620-26 b - Methuselah: PSR B1620-26 b, unofficially nicknamed Mathusalem is a circumbinary exoplanet of about 2.5 Jovian masses. It would be the oldest known planet, perhaps 13 billion years old. Discovered in 1993 around the binary system formed by PSR B1620-26 and WD B1620-26, respectively a pulsar and a white dwarf orbiting around each other. This system is approximately 12,400 light-years away from Earth in the M4 globular cluster of the constellation Scorpio. PSR B1620-26 b is an extrasolar planet located approximately 12,400 light-years away from Earth in the constellation of Scorpius. It bears the unofficial nickname “” Methuselah”” due to its extreme age. The planet is in a circumbinary orbit around a pulsar (PSR B1620-26) and a white dwarf (WD B1620-26)) and is the first circumbinary planet ever confirmed. It is also the first planet found in a globular cluster. The planet is one of the oldest known extrasolar planets, b

Exoplanete PSR B1620-26 b - Mathusalem - Exoplanet PSR B1620-26 b - Methuselah: PSR B1620-26 b, unofficially nicknamed Mathusalem is a circumbinary exoplanet of about 2.5 Jovian masses. It would be the oldest known planet, perhaps 13 billion years old. Discovered in 1993 around the binary system formed by PSR B1620-26 and WD B1620-26, respectively a pulsar and a white dwarf orbiting around each other. This system is approximately 12,400 light-years away from Earth in the M4 globular cluster of the constellation Scorpio. PSR B1620-26 b is an extrasolar planet located approximately 12,400 light-years away from Earth in the constellation of Scorpius. It bears the unofficial nickname “” Methuselah”” due to its extreme age. The planet is in a circumbinary orbit around a pulsar (PSR B1620-26) and a white dwarf (WD B1620-26)) and is the first circumbinary planet ever confirmed. It is also the first planet found in a globular cluster. The planet is one of the oldest known extrasolar planets, b

Miller, Ron (b.1947)

PIX4608526

Tue 03, 1954 - New Deck Landing Aid For Very Fast Aircraft: The Admiralty, in conjunction with the Ministry of Supply, has developed a new deck landing aid for the reception of very fast aircraft. Experiments carried out some time ago indicated that the high rate of approach of future aircraft would not allow sufficient time for the human reactions between the pilot and the” batsman” who signals him in. A light signalling system, employing a mirror and gyre mechanism for keeping it at a constant level, was accordingly devised, and trials at sea have proven so encouraging that it can be anticipated that this new invention will ultimately supersede hand signalling

Tue 03, 1954 - New Deck Landing Aid For Very Fast Aircraft: The Admiralty, in conjunction with the Ministry of Supply, has developed a new deck landing aid for the reception of very fast aircraft. Experiments carried out some time ago indicated that the high rate of approach of future aircraft would not allow sufficient time for the human reactions between the pilot and the” batsman” who signals him in. A light signalling system, employing a mirror and gyre mechanism for keeping it at a constant level, was accordingly devised, and trials at sea have proven so encouraging that it can be anticipated that this new invention will ultimately supersede hand signalling

ZUM4918759

Remnants of Supernova Tycho in X in Cassiopee - Tycho's Supernova Remnant: Chandra's View of Tycho's Supernova Remnant This Chandra image reveals fascinating details of the turbulent debris created by a supernova explosion that was observed by the Danish astronomer Tycho Brahe in the year 1572. The colors show different X - ray energies, with red, green, and blue representing low, medium and high energies, respectively. The image is cut off at the bottom because the southernmost region of the remnant fell outside the field of view of the detector. A shock wave produced by the expanding debris is outlined by the strikingly sharp blue circular arcs of twenty million degree Celsius gas seen on the outer rim. The stellar debris, which has a temperature of about ten million degrees and is visible only in X - rays, shows up as mottled yellow, green and red fingers of gas. Tycho's supernova remnant presents several interesting contrasts with the Cassiopeia A (Cas A) supernova remnant. The deb

Remnants of Supernova Tycho in X in Cassiopee - Tycho's Supernova Remnant: Chandra's View of Tycho's Supernova Remnant This Chandra image reveals fascinating details of the turbulent debris created by a supernova explosion that was observed by the Danish astronomer Tycho Brahe in the year 1572. The colors show different X - ray energies, with red, green, and blue representing low, medium and high energies, respectively. The image is cut off at the bottom because the southernmost region of the remnant fell outside the field of view of the detector. A shock wave produced by the expanding debris is outlined by the strikingly sharp blue circular arcs of twenty million degree Celsius gas seen on the outer rim. The stellar debris, which has a temperature of about ten million degrees and is visible only in X - rays, shows up as mottled yellow, green and red fingers of gas. Tycho's supernova remnant presents several interesting contrasts with the Cassiopeia A (Cas A) supernova remnant. The deb

PIX4582513

Arc de fog - Fogbow - Arc de fog observed in Brittany on 5 May 2006. A haze arc is formed in the way of a rainbow. The light of the Sun is reflected in the water drops of the mist, but unlike raindrops, the mist droplets are much smaller: about a millimetre for the rain versus a few centiemes for the mist. As a result, the diffraction in the mist droplets is preponderant, which results in colour refracting at random angles, between 30 and 45* around the anti-sun point (opposite the Sun). Thus, all colours blend and one sees a white arch of light, sometimes slightly bluish on the inside and red on the outside, wider than a rainbow. Fogbow seen in Brittany on May 5, 2006. A fogbow is forming like a rainbow. The sunlight reflects in the fog droplets, but thoses droplets are much more smaller than the raindrops: about hundredths millimeters for the fog instead of about one millimeter for the rain. Thus, the diffraction in the fog droplets is leading, then the colors are refracted under ang

Arc de fog - Fogbow - Arc de fog observed in Brittany on 5 May 2006. A haze arc is formed in the way of a rainbow. The light of the Sun is reflected in the water drops of the mist, but unlike raindrops, the mist droplets are much smaller: about a millimetre for the rain versus a few centiemes for the mist. As a result, the diffraction in the mist droplets is preponderant, which results in colour refracting at random angles, between 30 and 45* around the anti-sun point (opposite the Sun). Thus, all colours blend and one sees a white arch of light, sometimes slightly bluish on the inside and red on the outside, wider than a rainbow. Fogbow seen in Brittany on May 5, 2006. A fogbow is forming like a rainbow. The sunlight reflects in the fog droplets, but thoses droplets are much more smaller than the raindrops: about hundredths millimeters for the fog instead of about one millimeter for the rain. Thus, the diffraction in the fog droplets is leading, then the colors are refracted under ang

Laurent Laveder

PIX4671379

Arc de fog - Fogbow - Arc de brume observed in Brittany on February 23, 2008. A haze arc is formed in the way of a rainbow. The light of the Sun is reflected in the water drops of the mist, but unlike raindrops, the mist droplets are much smaller: about a millimetre for the rain versus a few centiemes for the mist. As a result, the diffraction in the mist droplets is preponderant, which results in colour refracting at random angles, between 30 and 45* around the anti-sun point (opposite the Sun). Thus, all colours blend and one sees a white arch of light, sometimes slightly bluish on the inside and red on the outside, wider than a rainbow. Fogbow seen in Brittany on Feb 23, 2008. A fogbow is forming like a rainbow. The sunlight reflects in the fog droplets, but thoses droplets are much more smaller than the raindrops: about hundredths millimeters for the fog instead of about one millimeter for the rain. Thus, the diffraction in the fog droplets is leading, then the colors are refracted

Arc de fog - Fogbow - Arc de brume observed in Brittany on February 23, 2008. A haze arc is formed in the way of a rainbow. The light of the Sun is reflected in the water drops of the mist, but unlike raindrops, the mist droplets are much smaller: about a millimetre for the rain versus a few centiemes for the mist. As a result, the diffraction in the mist droplets is preponderant, which results in colour refracting at random angles, between 30 and 45* around the anti-sun point (opposite the Sun). Thus, all colours blend and one sees a white arch of light, sometimes slightly bluish on the inside and red on the outside, wider than a rainbow. Fogbow seen in Brittany on Feb 23, 2008. A fogbow is forming like a rainbow. The sunlight reflects in the fog droplets, but thoses droplets are much more smaller than the raindrops: about hundredths millimeters for the fog instead of about one millimeter for the rain. Thus, the diffraction in the fog droplets is leading, then the colors are refracted

Laurent Laveder

PIX4671411

Planetary nebula NGC 6826 in Swan - Planetary nebula NGC 6826 in Cygnus - Planetary nebula NGC 6826 is located about 2000 years - light from Earth in the constellation Swan. 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 on January 27, 1996. NGC 6826's eye - like appearance is marred by two sets of blood - red “” fliers”” that lie horizontally across the image. The surrounding faint green “” white”” of the eye is believed to be gas that made up almost half of the star's mass for most of its life. The hot remnant star (in the center of the green oval) drives a fast wind into older material, forming a hot interior bubble which pushes the older gas ahead of it to form a bright rim. (The star is one of the brightest stars in any planetary.) NGC 6826 is 2,200 light - years away in the constellation Cygnus. The Hubble telescope observation was

Planetary nebula NGC 6826 in Swan - Planetary nebula NGC 6826 in Cygnus - Planetary nebula NGC 6826 is located about 2000 years - light from Earth in the constellation Swan. 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 on January 27, 1996. NGC 6826's eye - like appearance is marred by two sets of blood - red “” fliers”” that lie horizontally across the image. The surrounding faint green “” white”” of the eye is believed to be gas that made up almost half of the star's mass for most of its life. The hot remnant star (in the center of the green oval) drives a fast wind into older material, forming a hot interior bubble which pushes the older gas ahead of it to form a bright rim. (The star is one of the brightest stars in any planetary.) NGC 6826 is 2,200 light - years away in the constellation Cygnus. The Hubble telescope observation was

PIX4623390

Arc de fog - Fogbow - Arc de fog observed in Brittany on 5 May 2006. A haze arc is formed in the way of a rainbow. The light of the Sun is reflected in the water drops of the mist, but unlike raindrops, the mist droplets are much smaller: about a millimetre for the rain versus a few centiemes for the mist. As a result, the diffraction in the mist droplets is preponderant, which results in colour refracting at random angles, between 30 and 45* around the anti-sun point (opposite the Sun). Thus, all colours blend and one sees a white arch of light, sometimes slightly bluish on the inside and red on the outside, wider than a rainbow. Fogbow seen in Brittany on May 5, 2006. A fogbow is forming like a rainbow. The sunlight reflects in the fog droplets, but thoses droplets are much more smaller than the raindrops: about hundredths millimeters for the fog instead of about one millimeter for the rain. Thus, the diffraction in the fog droplets is leading, then the colors are refracted under ang

Arc de fog - Fogbow - Arc de fog observed in Brittany on 5 May 2006. A haze arc is formed in the way of a rainbow. The light of the Sun is reflected in the water drops of the mist, but unlike raindrops, the mist droplets are much smaller: about a millimetre for the rain versus a few centiemes for the mist. As a result, the diffraction in the mist droplets is preponderant, which results in colour refracting at random angles, between 30 and 45* around the anti-sun point (opposite the Sun). Thus, all colours blend and one sees a white arch of light, sometimes slightly bluish on the inside and red on the outside, wider than a rainbow. Fogbow seen in Brittany on May 5, 2006. A fogbow is forming like a rainbow. The sunlight reflects in the fog droplets, but thoses droplets are much more smaller than the raindrops: about hundredths millimeters for the fog instead of about one millimeter for the rain. Thus, the diffraction in the fog droplets is leading, then the colors are refracted under ang

Laurent Laveder

PIX4671386

Arc de fog - Fogbow - Arc de fog observed in Brittany on 5 May 2006. A haze arc is formed in the way of a rainbow. The light of the Sun is reflected in the water drops of the mist, but unlike raindrops, the mist droplets are much smaller: about a millimetre for the rain versus a few centiemes for the mist. As a result, the diffraction in the mist droplets is preponderant, which results in colour refracting at random angles, between 30 and 45* around the anti-sun point (opposite the Sun). Thus, all colours blend and one sees a white arch of light, sometimes slightly bluish on the inside and red on the outside, wider than a rainbow. Fogbow seen in Brittany on May 5, 2006. A fogbow is forming like a rainbow. The sunlight reflects in the fog droplets, but thoses droplets are much more smaller than the raindrops: about hundredths millimeters for the fog instead of about one millimeter for the rain. Thus, the diffraction in the fog droplets is leading, then the colors are refracted under ang

Arc de fog - Fogbow - Arc de fog observed in Brittany on 5 May 2006. A haze arc is formed in the way of a rainbow. The light of the Sun is reflected in the water drops of the mist, but unlike raindrops, the mist droplets are much smaller: about a millimetre for the rain versus a few centiemes for the mist. As a result, the diffraction in the mist droplets is preponderant, which results in colour refracting at random angles, between 30 and 45* around the anti-sun point (opposite the Sun). Thus, all colours blend and one sees a white arch of light, sometimes slightly bluish on the inside and red on the outside, wider than a rainbow. Fogbow seen in Brittany on May 5, 2006. A fogbow is forming like a rainbow. The sunlight reflects in the fog droplets, but thoses droplets are much more smaller than the raindrops: about hundredths millimeters for the fog instead of about one millimeter for the rain. Thus, the diffraction in the fog droplets is leading, then the colors are refracted under ang

Laurent Laveder

PIX4671404

Arc de fog - Fogbow - Arc de fog observed in Brittany on 5 May 2006. A haze arc is formed in the way of a rainbow. The light of the Sun is reflected in the water drops of the mist, but unlike raindrops, the mist droplets are much smaller: about a millimetre for the rain versus a few centiemes for the mist. As a result, the diffraction in the mist droplets is preponderant, which results in colour refracting at random angles, between 30 and 45* around the anti-sun point (opposite the Sun). Thus, all colours blend and one sees a white arch of light, sometimes slightly bluish on the inside and red on the outside, wider than a rainbow. Fogbow seen in Brittany on May 5, 2006. A fogbow is forming like a rainbow. The sunlight reflects in the fog droplets, but thoses droplets are much more smaller than the raindrops: about hundredths millimeters for the fog instead of about one millimeter for the rain. Thus, the diffraction in the fog droplets is leading, then the colors are refracted under ang

Arc de fog - Fogbow - Arc de fog observed in Brittany on 5 May 2006. A haze arc is formed in the way of a rainbow. The light of the Sun is reflected in the water drops of the mist, but unlike raindrops, the mist droplets are much smaller: about a millimetre for the rain versus a few centiemes for the mist. As a result, the diffraction in the mist droplets is preponderant, which results in colour refracting at random angles, between 30 and 45* around the anti-sun point (opposite the Sun). Thus, all colours blend and one sees a white arch of light, sometimes slightly bluish on the inside and red on the outside, wider than a rainbow. Fogbow seen in Brittany on May 5, 2006. A fogbow is forming like a rainbow. The sunlight reflects in the fog droplets, but thoses droplets are much more smaller than the raindrops: about hundredths millimeters for the fog instead of about one millimeter for the rain. Thus, the diffraction in the fog droplets is leading, then the colors are refracted under ang

Laurent Laveder

PIX4671396

Sirius A and Sirius B in the Big Dog - Sirius A and Sirius B in Canis Major - Sirius A and Sirius B in the Big Dog seen by the Hubble space telescope in February 2004. The brightest source in this image is Sirius A, the brightest star in the sky in visible light, here overexposed to his companion, Sirius B (lower left), a white dwarf star orbiting Sirius A in 50 years. Sirius is located 8.6 years of light from Earth. This Hubble Space Telescope image shows Sirius, the brightest star in our nighttime sky, along with its faint, tiny stellar companion, Sirius B. Astronomers overexposed the image of Sirius (at center) so that the dim Sirius B (tiny dot at lower left) could be seen. The cross - shaped diffraction spikes and concentric rings around Sirius, and the small ring around Sirius B, are artifacts produced within the telescope's imaging system. Sirius B is a white dwarf that orbits around Sirius every 50 years. Sirius, only 8.6 light - years from Earth, is the fifth closest star syst

Sirius A and Sirius B in the Big Dog - Sirius A and Sirius B in Canis Major - Sirius A and Sirius B in the Big Dog seen by the Hubble space telescope in February 2004. The brightest source in this image is Sirius A, the brightest star in the sky in visible light, here overexposed to his companion, Sirius B (lower left), a white dwarf star orbiting Sirius A in 50 years. Sirius is located 8.6 years of light from Earth. This Hubble Space Telescope image shows Sirius, the brightest star in our nighttime sky, along with its faint, tiny stellar companion, Sirius B. Astronomers overexposed the image of Sirius (at center) so that the dim Sirius B (tiny dot at lower left) could be seen. The cross - shaped diffraction spikes and concentric rings around Sirius, and the small ring around Sirius B, are artifacts produced within the telescope's imaging system. Sirius B is a white dwarf that orbits around Sirius every 50 years. Sirius, only 8.6 light - years from Earth, is the fifth closest star syst

PIX4571735

Arc de fog - Fogbow - Arc de brume observed in Brittany on February 23, 2008. A haze arc is formed in the way of a rainbow. The light of the Sun is reflected in the water drops of the mist, but unlike raindrops, the mist droplets are much smaller: about a millimetre for the rain versus a few centiemes for the mist. As a result, the diffraction in the mist droplets is preponderant, which results in colour refracting at random angles, between 30 and 45* around the anti-sun point (opposite the Sun). Thus, all colours blend and one sees a white arch of light, sometimes slightly bluish on the inside and red on the outside, wider than a rainbow. Fogbow seen in Brittany on Feb 23, 2008. A fogbow is forming like a rainbow. The sunlight reflects in the fog droplets, but thoses droplets are much more smaller than the raindrops: about hundredths millimeters for the fog instead of about one millimeter for the rain. Thus, the diffraction in the fog droplets is leading, then the colors are refracted

Arc de fog - Fogbow - Arc de brume observed in Brittany on February 23, 2008. A haze arc is formed in the way of a rainbow. The light of the Sun is reflected in the water drops of the mist, but unlike raindrops, the mist droplets are much smaller: about a millimetre for the rain versus a few centiemes for the mist. As a result, the diffraction in the mist droplets is preponderant, which results in colour refracting at random angles, between 30 and 45* around the anti-sun point (opposite the Sun). Thus, all colours blend and one sees a white arch of light, sometimes slightly bluish on the inside and red on the outside, wider than a rainbow. Fogbow seen in Brittany on Feb 23, 2008. A fogbow is forming like a rainbow. The sunlight reflects in the fog droplets, but thoses droplets are much more smaller than the raindrops: about hundredths millimeters for the fog instead of about one millimeter for the rain. Thus, the diffraction in the fog droplets is leading, then the colors are refracted

Laurent Laveder

PIX4671410

Arc de fog - Fogbow - Arc de brume observed in Brittany on 16 December 2008. A haze arc is formed in the way of a rainbow. The light of the Sun is reflected in the water drops of the mist, but unlike raindrops, the mist droplets are much smaller: about a millimetre for the rain versus a few centiemes for the mist. As a result, the diffraction in the mist droplets is preponderant, which results in colour refracting at random angles, between 30 and 45* around the anti-sun point (opposite the Sun). Thus, all colours blend and one sees a white arch of light, sometimes slightly bluish on the inside and red on the outside, wider than a rainbow. Fogbow seen in Brittany on December 16, 2008. A fogbow is forming like a rainbow. The sunlight reflects in the fog droplets, but thoses droplets are much more smaller than the raindrops: about hundredths millimeters for the fog instead of about one millimeter for the rain. Thus, the diffraction in the fog droplets is leading, then the colors are refra

Arc de fog - Fogbow - Arc de brume observed in Brittany on 16 December 2008. A haze arc is formed in the way of a rainbow. The light of the Sun is reflected in the water drops of the mist, but unlike raindrops, the mist droplets are much smaller: about a millimetre for the rain versus a few centiemes for the mist. As a result, the diffraction in the mist droplets is preponderant, which results in colour refracting at random angles, between 30 and 45* around the anti-sun point (opposite the Sun). Thus, all colours blend and one sees a white arch of light, sometimes slightly bluish on the inside and red on the outside, wider than a rainbow. Fogbow seen in Brittany on December 16, 2008. A fogbow is forming like a rainbow. The sunlight reflects in the fog droplets, but thoses droplets are much more smaller than the raindrops: about hundredths millimeters for the fog instead of about one millimeter for the rain. Thus, the diffraction in the fog droplets is leading, then the colors are refra

Laurent Laveder

PIX4671412

Sirius A and Sirius B in the Big Dog - Sirius A and Sirius B seen in X - ray - Sirius A and Sirius B in the Big Dog seen in X-ray by the Chandra telescope. The brightest source on this image is Sirius B, a white dwarf star whose surface, heated at a temperature of 25,000 degres, emits huge X-rays. The other point is Sirius A, the brightest star in the sky in visible light, but practically non-existent in this wavelength. An X - ray image of the Sirius star system located 8.6 light years from Earth. This image shows two sources and a spike - like pattern due to the support structure for the transmission grating. The bright source is Sirius B, a white dwarf star that has a surface temperature of about 25,000 degrees Celsius which produces very low energy X - rays. The dim source at the position of Sirius A, a normal star more than twice as massive as the Sun, may be due to ultraviolet radiation from Sirius A leaking through the filter on the detector. In contrast, Sirius A is the brighte

Sirius A and Sirius B in the Big Dog - Sirius A and Sirius B seen in X - ray - Sirius A and Sirius B in the Big Dog seen in X-ray by the Chandra telescope. The brightest source on this image is Sirius B, a white dwarf star whose surface, heated at a temperature of 25,000 degres, emits huge X-rays. The other point is Sirius A, the brightest star in the sky in visible light, but practically non-existent in this wavelength. An X - ray image of the Sirius star system located 8.6 light years from Earth. This image shows two sources and a spike - like pattern due to the support structure for the transmission grating. The bright source is Sirius B, a white dwarf star that has a surface temperature of about 25,000 degrees Celsius which produces very low energy X - rays. The dim source at the position of Sirius A, a normal star more than twice as massive as the Sun, may be due to ultraviolet radiation from Sirius A leaking through the filter on the detector. In contrast, Sirius A is the brighte

PIX4571724

Galactic Center Region - The Galactic Center - The Galactic Center Region of the center of our galaxy seen the Chandra, Spitzer and Hubble satellites. The galactic center (Sagittarius A*) is located in the white area in the middle to the right of the image. In yellow, near-infrared images obtained by the Hubble Space Telescope; in red, infrared images obtained by the Spitzer Space Telescope; in blue and purple, X-ray observations obtained by the Chandra Space Telescope. Nasa's Great Observatories - the Hubble Space Telescope, the Spitzer Space Telescope, and the Chandra X-ray Observatory - have collaborated to produce an unprecedented image of the central region of our Milky Way galaxy. In this spectacular image, observations using infrared light and X-ray light see through the obscuring dust and reveal the intense activity near the galactic core. Note that the center of the galaxy is located within the bright white region to the right of and just below the middle of the image. The ent

Galactic Center Region - The Galactic Center - The Galactic Center Region of the center of our galaxy seen the Chandra, Spitzer and Hubble satellites. The galactic center (Sagittarius A*) is located in the white area in the middle to the right of the image. In yellow, near-infrared images obtained by the Hubble Space Telescope; in red, infrared images obtained by the Spitzer Space Telescope; in blue and purple, X-ray observations obtained by the Chandra Space Telescope. Nasa's Great Observatories - the Hubble Space Telescope, the Spitzer Space Telescope, and the Chandra X-ray Observatory - have collaborated to produce an unprecedented image of the central region of our Milky Way galaxy. In this spectacular image, observations using infrared light and X-ray light see through the obscuring dust and reveal the intense activity near the galactic core. Note that the center of the galaxy is located within the bright white region to the right of and just below the middle of the image. The ent

PIX4637984

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. With a magnitude of 9.0, this nebula is easily observed with a small telescope. 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. The Ring Nebula, M57, is the most famous example of a planetary nebula. Located about 2,000 light years away, it has an apparent diameter of 1 arc minute and a real diameter of about one light year. At magnitude 9.0 its high surface brightness makes it an easy object, even from the city and even with small telescopes. Despite their name, planetary nebulae have nothing to do with planets. They were named originally because their discoverers observed them visually and they did not appear as stellar point sources, but rather as small diffuse objects that resembled the outer planets in our solar system such

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. With a magnitude of 9.0, this nebula is easily observed with a small telescope. 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. The Ring Nebula, M57, is the most famous example of a planetary nebula. Located about 2,000 light years away, it has an apparent diameter of 1 arc minute and a real diameter of about one light year. At magnitude 9.0 its high surface brightness makes it an easy object, even from the city and even with small telescopes. Despite their name, planetary nebulae have nothing to do with planets. They were named originally because their discoverers observed them visually and they did not appear as stellar point sources, but rather as small diffuse objects that resembled the outer planets in our solar system such

Jerry Lodriguss

PIX4623312

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. With a magnitude of 9.0, this nebula is easily observed with a small telescope. 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. The Ring Nebula, M57, is the most famous example of a planetary nebula. Located about 2,000 light years away, it has an apparent diameter of 1 arc minute and a real diameter of about one light year. At magnitude 9.0 its high surface brightness makes it an easy object, even from the city and even with small telescopes. Despite their name, planetary nebulae have nothing to do with planets. They were named originally because their discoverers observed them visually and they did not appear as stellar point sources, but rather as small diffuse objects that resembled the outer planets in our solar system such

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. With a magnitude of 9.0, this nebula is easily observed with a small telescope. 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. The Ring Nebula, M57, is the most famous example of a planetary nebula. Located about 2,000 light years away, it has an apparent diameter of 1 arc minute and a real diameter of about one light year. At magnitude 9.0 its high surface brightness makes it an easy object, even from the city and even with small telescopes. Despite their name, planetary nebulae have nothing to do with planets. They were named originally because their discoverers observed them visually and they did not appear as stellar point sources, but rather as small diffuse objects that resembled the outer planets in our solar system such

Sebastian Voltmer

PIX4623321

The elliptical galaxy M84 - The elliptical galaxy M84 - The M84 galaxy (NGC 4374) is 55 million light years away from Earth, in the Virgin's cluster. This image is a composite obtained in X-rays (blue), radio (red) and visible (yellow and white). Gas material is ejected from the heart of the galaxy. A supermassive black hole would have caused this jet. This composite image shows M84, a massive elliptical galaxy in the Virgo Cluster, about 55 million light years from Earth. Hot gas around M84 is shown in a Chandra X - ray Observatory image in blue and a radio image from the Very Large Array is shown in red. A background image from the Sloan Digital Sky Survey is shown in yellow and white. A number of bubbles are visible in the hot gas, outlined with blue X - ray emission. These bubbles were blown by relativistic particles generated by the central supermassive black hole in M84. These particles travel outwards in the form of a two - sided jet. Because smaller bubbles are found inside lar

The elliptical galaxy M84 - The elliptical galaxy M84 - The M84 galaxy (NGC 4374) is 55 million light years away from Earth, in the Virgin's cluster. This image is a composite obtained in X-rays (blue), radio (red) and visible (yellow and white). Gas material is ejected from the heart of the galaxy. A supermassive black hole would have caused this jet. This composite image shows M84, a massive elliptical galaxy in the Virgo Cluster, about 55 million light years from Earth. Hot gas around M84 is shown in a Chandra X - ray Observatory image in blue and a radio image from the Very Large Array is shown in red. A background image from the Sloan Digital Sky Survey is shown in yellow and white. A number of bubbles are visible in the hot gas, outlined with blue X - ray emission. These bubbles were blown by relativistic particles generated by the central supermassive black hole in M84. These particles travel outwards in the form of a two - sided jet. Because smaller bubbles are found inside lar

PIX4611313

Planet around the star Fomalhaut - Planet orbiting star Fomalhaut - First visible light photo of an extrasolar planet obtained by the space telescope Hubble. The planet called Fomalhaut b, is a planet with a mass close to Jupiter, orbiting the star Fomalhaut, 25 years - light from Earth in the constellation of Southern Fish. The star Fomalhaut (indicated by a white dot) is hidden here to show the dust disc surrounding it and the position of the planet. Located at a distance of about four times that separating Neptune from the Sun, Fomalhaut b makes a complete orbit around its star in 872 years. November 2008 - This image, taken with the Advanced Camera for Surveys aboard the NASA/ESA Hubble Space Telescope, shows the newly discovered planet, Fomalhaut b, orbiting its parent star, Fomalhaut. The small white box at lower right pinpoints the planet's location. Fomalhaut b has carved a path along the inner edge of a vast, dusty debris ring encircling Fomalhaut that is 34.5 billion kilomete

Planet around the star Fomalhaut - Planet orbiting star Fomalhaut - First visible light photo of an extrasolar planet obtained by the space telescope Hubble. The planet called Fomalhaut b, is a planet with a mass close to Jupiter, orbiting the star Fomalhaut, 25 years - light from Earth in the constellation of Southern Fish. The star Fomalhaut (indicated by a white dot) is hidden here to show the dust disc surrounding it and the position of the planet. Located at a distance of about four times that separating Neptune from the Sun, Fomalhaut b makes a complete orbit around its star in 872 years. November 2008 - This image, taken with the Advanced Camera for Surveys aboard the NASA/ESA Hubble Space Telescope, shows the newly discovered planet, Fomalhaut b, orbiting its parent star, Fomalhaut. The small white box at lower right pinpoints the planet's location. Fomalhaut b has carved a path along the inner edge of a vast, dusty debris ring encircling Fomalhaut that is 34.5 billion kilomete

PIX4573100

Planet around the star Fomalhaut - Planet orbiting star Fomalhaut - First visible light photo of an extrasolar planet obtained by the space telescope Hubble. The planet called Fomalhaut b, is a planet with a mass close to Jupiter, orbiting the star Fomalhaut, 25 years - light from Earth in the constellation of Southern Fish. The star Fomalhaut (indicated by a white dot) is hidden here to show the dust disc surrounding it and the position of the planet. Located at a distance of about four times that separating Neptune from the Sun, Fomalhaut b makes a complete orbit around its star in 872 years. November 2008 - This image, taken with the Advanced Camera for Surveys aboard the NASA/ESA Hubble Space Telescope, shows the newly discovered planet, Fomalhaut b, orbiting its parent star, Fomalhaut. The small white box at lower right pinpoints the planet's location. Fomalhaut b has carved a path along the inner edge of a vast, dusty debris ring encircling Fomalhaut that is 34.5 billion kilomete

Planet around the star Fomalhaut - Planet orbiting star Fomalhaut - First visible light photo of an extrasolar planet obtained by the space telescope Hubble. The planet called Fomalhaut b, is a planet with a mass close to Jupiter, orbiting the star Fomalhaut, 25 years - light from Earth in the constellation of Southern Fish. The star Fomalhaut (indicated by a white dot) is hidden here to show the dust disc surrounding it and the position of the planet. Located at a distance of about four times that separating Neptune from the Sun, Fomalhaut b makes a complete orbit around its star in 872 years. November 2008 - This image, taken with the Advanced Camera for Surveys aboard the NASA/ESA Hubble Space Telescope, shows the newly discovered planet, Fomalhaut b, orbiting its parent star, Fomalhaut. The small white box at lower right pinpoints the planet's location. Fomalhaut b has carved a path along the inner edge of a vast, dusty debris ring encircling Fomalhaut that is 34.5 billion kilomete

PIX4573107

Planetary nebula NGC 6537 in Sagittarius - Hubble observations have revealed huge waves sculpted in the Red Spider nebula. This warm and windy planetary nebula harbours one of the hottest stars in the Universe and its powerful stellar winds generate waves 100 billion kilometers high - intimidating for even the bravest space surfers. The Red Spider Nebula, NGC 6537, is a striking 'butterfly' or bipolar (two - lobed) planetary nebula. Planetary nebulae are the glowing embers of ordinary stars, such as our Sun. At the end of their lives these stars expel most of their material into space, often forming a two - lobed structure as in the case of the Red Spider. These waves are driven by stellar winds radiating from the hot central star, much as a wind passing over a lake can generate waves on the water. The waves reach peaks 100 billion kilometers high and must have been produced by a powerful wind blowing with a speed of 2000 - 4500 kilometers per second (about 7 - 16 million km/hr). The w

Planetary nebula NGC 6537 in Sagittarius - Hubble observations have revealed huge waves sculpted in the Red Spider nebula. This warm and windy planetary nebula harbours one of the hottest stars in the Universe and its powerful stellar winds generate waves 100 billion kilometers high - intimidating for even the bravest space surfers. The Red Spider Nebula, NGC 6537, is a striking 'butterfly' or bipolar (two - lobed) planetary nebula. Planetary nebulae are the glowing embers of ordinary stars, such as our Sun. At the end of their lives these stars expel most of their material into space, often forming a two - lobed structure as in the case of the Red Spider. These waves are driven by stellar winds radiating from the hot central star, much as a wind passing over a lake can generate waves on the water. The waves reach peaks 100 billion kilometers high and must have been produced by a powerful wind blowing with a speed of 2000 - 4500 kilometers per second (about 7 - 16 million km/hr). The w

PIX4623214

Remains of supernova G292.0+1.8 in X - G292.0+1.8 supernova remnant - X-ray view of the rest of supernova G292.0+1.8 located about 20,000 years - light in the constellation Centaurus. In the center of the image, the massive star that exploded gave way to a pulsar. The different colours represent different chemical elements (oxygen, magnesium...). The image was composed with a black and white image obtained in visible light. The aftermath of the death of a massive star is shown in detail in this composite image of G292.0+1.8. In color is the Chandra X - ray Observatory image and in white is optical data from the Digitized Sky Survey. Near the center of G292.0+1.8 is the so - called pulsar wind nebula, most easily seen in high energy X - rays. This is the magnetized bubble of high - energy particles that surrounds the “” pulsar””, a rapidly rotating neutron star that remained behind the original, massive star exploded. The narrow, jet - like feature running from north to south in the ima

Remains of supernova G292.0+1.8 in X - G292.0+1.8 supernova remnant - X-ray view of the rest of supernova G292.0+1.8 located about 20,000 years - light in the constellation Centaurus. In the center of the image, the massive star that exploded gave way to a pulsar. The different colours represent different chemical elements (oxygen, magnesium...). The image was composed with a black and white image obtained in visible light. The aftermath of the death of a massive star is shown in detail in this composite image of G292.0+1.8. In color is the Chandra X - ray Observatory image and in white is optical data from the Digitized Sky Survey. Near the center of G292.0+1.8 is the so - called pulsar wind nebula, most easily seen in high energy X - rays. This is the magnetized bubble of high - energy particles that surrounds the “” pulsar””, a rapidly rotating neutron star that remained behind the original, massive star exploded. The narrow, jet - like feature running from north to south in the ima

PIX4583154

Spiral galaxy M33 in the Triangle - Spiral galaxy M33 in Triangulum - M33, (NGC 598), the galaxy of the Triangle, is located about 2 million years ago - light from Earth. It belongs to the local group, just like our galaxy or Andromede galaxy. This image is a composite of two black and white images obtained from the 1.2m telescope of Mount Palomar, California. Spiral galaxy M33 is a mid - sized member of our Local Group of Galaxies. M33 is also called the Triangulum Galaxy for the constellation in which it resides. About four times smaller (in radius) than our Milky Way Galaxy and the Andromeda Galaxy (M31), it is much larger than the many of the local dwarf spheroidal galaxies. M33's proximity to M31 causes it to be thought by some to be a satellite galaxy of this more massive galaxy. M33's proximity to our Milky Way Galaxy causes it to appear more than twice the angular size of the Full Moon, and be visible with a good pair of binoculars. <BR>This image is a composite from black and

Spiral galaxy M33 in the Triangle - Spiral galaxy M33 in Triangulum - M33, (NGC 598), the galaxy of the Triangle, is located about 2 million years ago - light from Earth. It belongs to the local group, just like our galaxy or Andromede galaxy. This image is a composite of two black and white images obtained from the 1.2m telescope of Mount Palomar, California. Spiral galaxy M33 is a mid - sized member of our Local Group of Galaxies. M33 is also called the Triangulum Galaxy for the constellation in which it resides. About four times smaller (in radius) than our Milky Way Galaxy and the Andromeda Galaxy (M31), it is much larger than the many of the local dwarf spheroidal galaxies. M33's proximity to M31 causes it to be thought by some to be a satellite galaxy of this more massive galaxy. M33's proximity to our Milky Way Galaxy causes it to appear more than twice the angular size of the Full Moon, and be visible with a good pair of binoculars. <BR>This image is a composite from black and

D. De Martin

PIX4609266

Crete vue de l'espace - Crete seen from space - La Crete vue from the International Space Station (ISS) on 22 July 2011. Crete is the largest and most heavily populated island of Greece (or the Hellenic Republic). The island stretches approximately 260 kilometers (161 miles) from west to east, and it is roughly 60 kilometers (37 miles) across at its widest point. The rugged terrain of Crete includes mountains, plateaus, and several deep gorges. The largest city on the island, Heraklion, sits on the northern coastline. Several smaller islands ring Crete. Two of the largest of these, Dia and Gavdos, are sparsely populated year - round, although Gavdos hosts numerous summer visitors. The western and central parts of Crete appear surrounded by quicksilver in this astronaut photograph taken from the International Space Station. This phenomenon is known as sunglint, caused by light reflecting off of the sea surface directly towards the observer. The point of maximum reflectance is visible as

Crete vue de l'espace - Crete seen from space - La Crete vue from the International Space Station (ISS) on 22 July 2011. Crete is the largest and most heavily populated island of Greece (or the Hellenic Republic). The island stretches approximately 260 kilometers (161 miles) from west to east, and it is roughly 60 kilometers (37 miles) across at its widest point. The rugged terrain of Crete includes mountains, plateaus, and several deep gorges. The largest city on the island, Heraklion, sits on the northern coastline. Several smaller islands ring Crete. Two of the largest of these, Dia and Gavdos, are sparsely populated year - round, although Gavdos hosts numerous summer visitors. The western and central parts of Crete appear surrounded by quicksilver in this astronaut photograph taken from the International Space Station. This phenomenon is known as sunglint, caused by light reflecting off of the sea surface directly towards the observer. The point of maximum reflectance is visible as

PIX4665986

Planetary nebula NGC 6543 in the Dragon - Planetary nebula NGC 6543 in Draco - Composite view of the planetary nebula NGC 6543 in the Dragon obtained by the Hubble space telescope and X-ray (blue) by the Chandra satellite. NGC 6543 is located about 3000 years of light from Earth. This composite of data from Nasa's Chandra X - ray Observatory and Hubble Space Telescope is a new look for NGC 6543, better known as the Cat's Eye nebula. This famous object is a so - called planetary nebula that represents a phase of stellar evolution that the Sun should experience several billion years from now. When a star like the Sun begins to run out of fuel, it becomes what is known as a red giant. In this phase, a star sheds some of its outer layers, eventually leaving behind a hot core that collapses to form a dense white dwarf star. A fast wind emanating from the hot core rams into the ejected atmosphere, pushes it outward, and creates the graceful filamentary structures seen with optical telescopes

Planetary nebula NGC 6543 in the Dragon - Planetary nebula NGC 6543 in Draco - Composite view of the planetary nebula NGC 6543 in the Dragon obtained by the Hubble space telescope and X-ray (blue) by the Chandra satellite. NGC 6543 is located about 3000 years of light from Earth. This composite of data from Nasa's Chandra X - ray Observatory and Hubble Space Telescope is a new look for NGC 6543, better known as the Cat's Eye nebula. This famous object is a so - called planetary nebula that represents a phase of stellar evolution that the Sun should experience several billion years from now. When a star like the Sun begins to run out of fuel, it becomes what is known as a red giant. In this phase, a star sheds some of its outer layers, eventually leaving behind a hot core that collapses to form a dense white dwarf star. A fast wind emanating from the hot core rams into the ejected atmosphere, pushes it outward, and creates the graceful filamentary structures seen with optical telescopes

PIX4623257

Cepheides in the barree spiral galaxy NGC 1365 - Cepheids in the barred spiral galaxy NGC 1365 - Detail on a star-forming zone in the barree spiral galaxy NGC 1365. Approximately 50 cepheides were discovered, allowing it to calculate its distance and estimate it at 60 million light years. NGC 1365 is a barred spiral galaxy that extends over 200,000 years - light. It belongs to the cluster of galaxies in the Furnace. Image obtained in 1996 by the Hubble space telescope A left image obtained by a ground telescope. This color image from the Hubble Space Telescope shows a region in NGC 1365, a barred spiral galaxy located in a cluster of galaxies called Fornax. A barred spiral galaxy is characterized by a “” bar””” of stars, dust and gas across its center. The black and white photograph from a ground - based telescope shows the entire galaxy, which is visible from the Southern Hemisphere. Astronomers who have been measuring the distance to the Fornax cluster, have estimated it to be 60 mil

Cepheides in the barree spiral galaxy NGC 1365 - Cepheids in the barred spiral galaxy NGC 1365 - Detail on a star-forming zone in the barree spiral galaxy NGC 1365. Approximately 50 cepheides were discovered, allowing it to calculate its distance and estimate it at 60 million light years. NGC 1365 is a barred spiral galaxy that extends over 200,000 years - light. It belongs to the cluster of galaxies in the Furnace. Image obtained in 1996 by the Hubble space telescope A left image obtained by a ground telescope. This color image from the Hubble Space Telescope shows a region in NGC 1365, a barred spiral galaxy located in a cluster of galaxies called Fornax. A barred spiral galaxy is characterized by a “” bar””” of stars, dust and gas across its center. The black and white photograph from a ground - based telescope shows the entire galaxy, which is visible from the Southern Hemisphere. Astronomers who have been measuring the distance to the Fornax cluster, have estimated it to be 60 mil

PIX4609849

Europe - Jupiter Satellite - View of the surface of the Europe satellite obtained from images made by the Galileo probe in 1995 and 1998. Jupiter's icy moon Europa looms large in this newly - reprocessed color view, made from images taken by Nasa's Galileo spacecraft in the late 1990s. This is the color view of Europa from Galileo that shows the largest portion of the moon's surface at the highest resolution. To create this new version, the images were assembled into a realistic color view of the surface that approximates how Europa would appear to the human eye. The scene shows the stunning diversity of Europa's surface geology. Long, linear cracks and ridges crisscross the surface, interrupted by regions of disrupted terrain where the surface ice crust has been broken up and re - frozen into new patterns. Color variations across the surface are associated with differences in geologic feature type and location. For example, areas that appear blue or white contain relatively pure water

Europe - Jupiter Satellite - View of the surface of the Europe satellite obtained from images made by the Galileo probe in 1995 and 1998. Jupiter's icy moon Europa looms large in this newly - reprocessed color view, made from images taken by Nasa's Galileo spacecraft in the late 1990s. This is the color view of Europa from Galileo that shows the largest portion of the moon's surface at the highest resolution. To create this new version, the images were assembled into a realistic color view of the surface that approximates how Europa would appear to the human eye. The scene shows the stunning diversity of Europa's surface geology. Long, linear cracks and ridges crisscross the surface, interrupted by regions of disrupted terrain where the surface ice crust has been broken up and re - frozen into new patterns. Color variations across the surface are associated with differences in geologic feature type and location. For example, areas that appear blue or white contain relatively pure water

PIX4574821

Exoplanete near a star at the end of life - A dying star sheds its outer layers - An artist's view of a star that, like the Sun at the end of life, turns into a red giant, and expels its upper layers into concentric circles, before becoming a white dwarf. In the foreground, an exoplanet distant from its star that sees its surface reheat. When a star like our sun nears the end of its life, it expands to more than 50 times its original diameter, becoming a red giant. Then over the next several tens of thousands of years the star episodically ejects its outer layers into space, sometimes producing concentric shells. These ejected layers eventually form a planetary nebula. What will subsequently remain of the star is a small, extremely hot core which cools off to become a white dwarf. In this image a red giant star expels its first of many shells of gas into space. In the years to come this spherical shell will grow outward, its circumference eventually expanding far beyond the orbit of th

Exoplanete near a star at the end of life - A dying star sheds its outer layers - An artist's view of a star that, like the Sun at the end of life, turns into a red giant, and expels its upper layers into concentric circles, before becoming a white dwarf. In the foreground, an exoplanet distant from its star that sees its surface reheat. When a star like our sun nears the end of its life, it expands to more than 50 times its original diameter, becoming a red giant. Then over the next several tens of thousands of years the star episodically ejects its outer layers into space, sometimes producing concentric shells. These ejected layers eventually form a planetary nebula. What will subsequently remain of the star is a small, extremely hot core which cools off to become a white dwarf. In this image a red giant star expels its first of many shells of gas into space. In the years to come this spherical shell will grow outward, its circumference eventually expanding far beyond the orbit of th

Walter B Myers

PIX4573888

Galaxies cluster 1E 0657 - 556 - Dark matter in the galaxy cluster 1E 0657 - 556 - Composite view of the galaxy cluster 1E 0657 - 556 visible and X-rays. The hot gas that surrounds this galaxy cluster, detects in X-rays by the Chandra satellite, is visible in pink on this image. The galaxy cluster, photographed by the Magellan telescope and the Hubble space telescope, appears in the background. By studying the mass of this cluster, astronomers were able to determine that most of this mass was concentrated not in the hot gas detected by Chandra but in the blue coloured areas here, suggesting the existence of dark matter. This composite image shows the galaxy cluster 1E 0657 - 556, also known as the “” bullet cluster.”” This cluster was formed after the collision of two large clusters of galaxies, the most energetic event known in the universe since the Big Bang. Hot gas detected by Chandra telescope in X - rays is seen as two pink clumps in the image and contains most of the “” normal,”

Galaxies cluster 1E 0657 - 556 - Dark matter in the galaxy cluster 1E 0657 - 556 - Composite view of the galaxy cluster 1E 0657 - 556 visible and X-rays. The hot gas that surrounds this galaxy cluster, detects in X-rays by the Chandra satellite, is visible in pink on this image. The galaxy cluster, photographed by the Magellan telescope and the Hubble space telescope, appears in the background. By studying the mass of this cluster, astronomers were able to determine that most of this mass was concentrated not in the hot gas detected by Chandra but in the blue coloured areas here, suggesting the existence of dark matter. This composite image shows the galaxy cluster 1E 0657 - 556, also known as the “” bullet cluster.”” This cluster was formed after the collision of two large clusters of galaxies, the most energetic event known in the universe since the Big Bang. Hot gas detected by Chandra telescope in X - rays is seen as two pink clumps in the image and contains most of the “” normal,”

PIX4565684

Pulsar of Crab in Taurus seen in X - The Crab nebula pulsar - Pulsar of Crab in Taurus seen in X by satellite Chandra. The pulsar is the white dot in the center of the image. This neutron star generates a powerful magnetic field creating material jets at the poles, as well as a strong stellar wind. This image gives the first clear view of the faint boundary of the Crab Nebula's X - ray - emitting pulsar wind nebula. The nebula is powered by a rapidly rotating, highly magnetized neutron star, or pulsar (white dot near the center). The combination of rapid rotating and strong magnetic field generates an intense electromagnetic field that creates jets of matter and anti - matter moving away from the north and south poles of the pulsar, and an intense wind flowing out in the equatorial direction. The inner X - ray ring is thought to be a shock wave that marks the boundary between the surrounding nebula and the flow of matter and antimatter particles from the pulsar. Energetic electrons and

Pulsar of Crab in Taurus seen in X - The Crab nebula pulsar - Pulsar of Crab in Taurus seen in X by satellite Chandra. The pulsar is the white dot in the center of the image. This neutron star generates a powerful magnetic field creating material jets at the poles, as well as a strong stellar wind. This image gives the first clear view of the faint boundary of the Crab Nebula's X - ray - emitting pulsar wind nebula. The nebula is powered by a rapidly rotating, highly magnetized neutron star, or pulsar (white dot near the center). The combination of rapid rotating and strong magnetic field generates an intense electromagnetic field that creates jets of matter and anti - matter moving away from the north and south poles of the pulsar, and an intense wind flowing out in the equatorial direction. The inner X - ray ring is thought to be a shock wave that marks the boundary between the surrounding nebula and the flow of matter and antimatter particles from the pulsar. Energetic electrons and

PIX4583131

Star Formation in Cassiopee - Star Formation in Cassiopeia - This star-forming region, called W5, is located approximately 6500 light years ago in the constellation Cassiopee. Several generations of stars appear on this cliche; the older ones are the blue stars in the centre of the two cavities; the younger stars are grouped at the edges of these cavities and at the ends of the gas pillars or they appear like pink dots; the white areas are home to the very young stars in formation. In this infrared image, heated dust appears in red, dense gas clouds appear in green. Composite image obtained by the Spitzer space telescope in 2006 and 2007. Generations of stars can be seen in this infrared portrait from Nasa's Spitzer Space Telescope. In this wispy star - forming region, called W5, the oldest stars can be seen as blue dots in the centers of the two hollow cavities (other blue dots are background and foreground stars not associated with the region). Younger stars line the rims of the cavi

Star Formation in Cassiopee - Star Formation in Cassiopeia - This star-forming region, called W5, is located approximately 6500 light years ago in the constellation Cassiopee. Several generations of stars appear on this cliche; the older ones are the blue stars in the centre of the two cavities; the younger stars are grouped at the edges of these cavities and at the ends of the gas pillars or they appear like pink dots; the white areas are home to the very young stars in formation. In this infrared image, heated dust appears in red, dense gas clouds appear in green. Composite image obtained by the Spitzer space telescope in 2006 and 2007. Generations of stars can be seen in this infrared portrait from Nasa's Spitzer Space Telescope. In this wispy star - forming region, called W5, the oldest stars can be seen as blue dots in the centers of the two hollow cavities (other blue dots are background and foreground stars not associated with the region). Younger stars line the rims of the cavi

PIX4621160

Flying Star Zeta Ophiuchi - Runaway Star Zeta Ophiuchi - The blue star near the center of the image is Zeta Ophiuchi, a very massive star moving at 24 km per second. It is a “” fleeing star”, a star ejected by the explosion of his companion star. In this infrared image obtained by the WISE (Wide - field Infrared Survey Explorer) satellite, the interstellar dust traversed by the star appears, as well as an arc-shaped shock wave caused by the powerful stellar winds that the star breaks. The blue star near the center of this image is Zeta Ophiuchi. When seen in visible light it appears as a relatively dim red star surrounded by other dim stars and no dust. However, in this infrared image taken with Nasa's Wide - field Infrared Survey Explorer, or WISE, a completely different view emerges. Zeta Ophiuchi is actually a very massive, hot, bright blue star plowing its way through a large cloud of interstellar dust and gas. Astronomers theorize that this stellar juggernaut was likely once part

Flying Star Zeta Ophiuchi - Runaway Star Zeta Ophiuchi - The blue star near the center of the image is Zeta Ophiuchi, a very massive star moving at 24 km per second. It is a “” fleeing star”, a star ejected by the explosion of his companion star. In this infrared image obtained by the WISE (Wide - field Infrared Survey Explorer) satellite, the interstellar dust traversed by the star appears, as well as an arc-shaped shock wave caused by the powerful stellar winds that the star breaks. The blue star near the center of this image is Zeta Ophiuchi. When seen in visible light it appears as a relatively dim red star surrounded by other dim stars and no dust. However, in this infrared image taken with Nasa's Wide - field Infrared Survey Explorer, or WISE, a completely different view emerges. Zeta Ophiuchi is actually a very massive, hot, bright blue star plowing its way through a large cloud of interstellar dust and gas. Astronomers theorize that this stellar juggernaut was likely once part

PIX4572156

Jupiter and Io seen by the New Horizons probe

Jupiter and Io seen by the New Horizons probe

PIX4574952

Enceladus, Saturn's satellite, seen by the Cassini probe - Saturn's moon Enceladus seen by Cassini spacecraft - Mosaic of false-coloured images obtained by the Cassini probe during the flight over this satellite on 5 October 2008. The image shows a fractured region in the southern hemisphere of the satellite. On Oct. 5, 2008, just after coming within 25 kilometers (15.6 miles) of the surface of Enceladus, Nasa's Cassini captured this stunning mosaic as the spacecraft sped away from this geologically active moon of Saturn. Craters and cratered terrains are rare in this view of the southern region of the moon's Saturn - facing hemisphere. Instead, the surface is replete with fractures, folds, and ridges - - all hallmarks of remarkable tectonic activity for a relatively small world. In this enhanced - color view, regions that appear blue - green are thought to be coated with larger grains than those that appear white or gray. Portions of the tiger stripe fractures, or sulci, are visible a

Enceladus, Saturn's satellite, seen by the Cassini probe - Saturn's moon Enceladus seen by Cassini spacecraft - Mosaic of false-coloured images obtained by the Cassini probe during the flight over this satellite on 5 October 2008. The image shows a fractured region in the southern hemisphere of the satellite. On Oct. 5, 2008, just after coming within 25 kilometers (15.6 miles) of the surface of Enceladus, Nasa's Cassini captured this stunning mosaic as the spacecraft sped away from this geologically active moon of Saturn. Craters and cratered terrains are rare in this view of the southern region of the moon's Saturn - facing hemisphere. Instead, the surface is replete with fractures, folds, and ridges - - all hallmarks of remarkable tectonic activity for a relatively small world. In this enhanced - color view, regions that appear blue - green are thought to be coated with larger grains than those that appear white or gray. Portions of the tiger stripe fractures, or sulci, are visible a

PIX4625451

Pollution in the Gulf of Mexico - Gulf of Mexico oil spill - On April 20, 2010, following an explosion, an oil platform sank into the sea. The black maree stretching in the Gulf of Mexico is photographed here on 4 May 2010 from the International Space Station. In the center of the picture the oil table is visible south of the Mississippi Delta. On April 20, 2010, the oil rig Deepwater Horizon suffered an explosion and sank two days later. Soon thereafter, oil began leaking into the Gulf of Mexico from ruptured pipes deep on the ocean floor.

Pollution in the Gulf of Mexico - Gulf of Mexico oil spill - On April 20, 2010, following an explosion, an oil platform sank into the sea. The black maree stretching in the Gulf of Mexico is photographed here on 4 May 2010 from the International Space Station. In the center of the picture the oil table is visible south of the Mississippi Delta. On April 20, 2010, the oil rig Deepwater Horizon suffered an explosion and sank two days later. Soon thereafter, oil began leaking into the Gulf of Mexico from ruptured pipes deep on the ocean floor.

PIX4673142

Star Formation in Cassiopee - Star Formation in Cassiopeia - This star-forming region, called W5, is located approximately 6500 light years ago in the constellation Cassiopee. Several generations of stars appear on this cliche; the older ones are the blue stars in the centre of the two cavities; the younger stars are grouped at the edges of these cavities and at the ends of the gas pillars or they appear like pink dots; the white areas are home to the very young stars in formation. In this infrared image, heated dust appears in red, dense gas clouds appear in green. Composite image obtained by the Spitzer space telescope in 2006 and 2007. Generations of stars can be seen in this infrared portrait from Nasa's Spitzer Space Telescope. In this wispy star - forming region, called W5, the oldest stars can be seen as blue dots in the centers of the two hollow cavities (other blue dots are background and foreground stars not associated with the region). Younger stars line the rims of the cavi

Star Formation in Cassiopee - Star Formation in Cassiopeia - This star-forming region, called W5, is located approximately 6500 light years ago in the constellation Cassiopee. Several generations of stars appear on this cliche; the older ones are the blue stars in the centre of the two cavities; the younger stars are grouped at the edges of these cavities and at the ends of the gas pillars or they appear like pink dots; the white areas are home to the very young stars in formation. In this infrared image, heated dust appears in red, dense gas clouds appear in green. Composite image obtained by the Spitzer space telescope in 2006 and 2007. Generations of stars can be seen in this infrared portrait from Nasa's Spitzer Space Telescope. In this wispy star - forming region, called W5, the oldest stars can be seen as blue dots in the centers of the two hollow cavities (other blue dots are background and foreground stars not associated with the region). Younger stars line the rims of the cavi

PIX4621152

Planetary nebula NGC 2818 - Planetary nebula NGC 2818 in Pyxis - The open cluster NGC 2818A in the southern constellation of the Compsole is distinguished by the fact that most of its bright stars have already become supernovae; this indicates that this cluster must be very old, perhaps a billion years. It has a planetary nebula, NGC 2818, photographed here by the Hubble space telescope in November 2008. A planetary nebula is an end-of-life star. NGC 2818 (also called PLN 261+8.1) is located about 10,000 light years from Earth. The unique planetary nebula NGC 2818 is nested inside the open star cluster NGC 2818A. Both the cluster and the nebula reside over 10,000 light - years away, in the southern constellation Pyxis (the Compasss). NGC 2818 is one of very few planetary nebulae in our galaxy located within an open cluster. Open clusters, in general, are loosely bound and they disperse over hundreds of millions of years. Stars that form planetary nebulae typically live for billions of

Planetary nebula NGC 2818 - Planetary nebula NGC 2818 in Pyxis - The open cluster NGC 2818A in the southern constellation of the Compsole is distinguished by the fact that most of its bright stars have already become supernovae; this indicates that this cluster must be very old, perhaps a billion years. It has a planetary nebula, NGC 2818, photographed here by the Hubble space telescope in November 2008. A planetary nebula is an end-of-life star. NGC 2818 (also called PLN 261+8.1) is located about 10,000 light years from Earth. The unique planetary nebula NGC 2818 is nested inside the open star cluster NGC 2818A. Both the cluster and the nebula reside over 10,000 light - years away, in the southern constellation Pyxis (the Compasss). NGC 2818 is one of very few planetary nebulae in our galaxy located within an open cluster. Open clusters, in general, are loosely bound and they disperse over hundreds of millions of years. Stars that form planetary nebulae typically live for billions of

PIX4622959

Switzerland Religion Divine Light Center (b/w photo)

Switzerland Religion Divine Light Center (b/w photo)

Stringer (STR)

KES6230842

Switzerland Religion Divine Light Center (b/w photo)

Switzerland Religion Divine Light Center (b/w photo)

Stringer (STR)

KES6230843

Ladies' Page (litho)

Ladies' Page (litho)

English School (20th century) (after)

LIP1599573

After the Storming of Lombard's Kop, Sir George White thanking the Imperial Light Horse for their Services (litho)

After the Storming of Lombard's Kop, Sir George White thanking the Imperial Light Horse for their Services (litho)

Dadd, Frank (1851-1929) (after)

LIP1048669

An engraving depicting an electric arc lights used in a photographer's studio, 19th century

An engraving depicting an electric arc lights used in a photographer's studio, 19th century

UIG5311411

Switzerland Film Nadja Giller, 1970 (b/w photo)

Switzerland Film Nadja Giller, 1970 (b/w photo)

Klose

KES6230315

Switzerland Religion Divine Light Center, 1976 (b/w photo)

Switzerland Religion Divine Light Center, 1976 (b/w photo)

Stringer (STR)

KES6230840

Royal London Yacht Club, the Yachts rounding the Nore Light Vessel (engraving)

Royal London Yacht Club, the Yachts rounding the Nore Light Vessel (engraving)

Tozer, Henry Spernon (c.1870-1940)

LIP1615934

Switzerland Film Nadja Tiller Walter Giller, 1970 (b/w photo)

Switzerland Film Nadja Tiller Walter Giller, 1970 (b/w photo)

Klose

KES6230316

An engraving depicting the projecting of a beam of sunlight (white light) passing through a prism and breaking it down into it's separate colours, 19th century

An engraving depicting the projecting of a beam of sunlight (white light) passing through a prism and breaking it down into it's separate colours, 19th century

UIG5311301

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