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March: Detail of the region of Candor Chasma. - Detail of the region of Candor Chasma, in Valles Marineris, obtained in September 2006 by the HIRISE camera on board the Mars Reconnaissance orbiter probe. The white cretes visible in the lower part of the image would have been formed by the passage of water through the basement of the planet millions of years ago

March: Detail of the region of Candor Chasma. - Detail of the region of Candor Chasma, in Valles Marineris, obtained in September 2006 by the HIRISE camera on board the Mars Reconnaissance orbiter probe. The white cretes visible in the lower part of the image would have been formed by the passage of water through the basement of the planet millions of years ago

PIX4616419

Samples of Martian soil preleves by the Phoenix probe - Mars soil sample taken by Phoenix spacecraft - Image of Mars soil obtained by the Phoenix probe on June 10, 2008. On the left, one of his solar panels, on the right, his arm robotizes with samples of Martian soil. The probe landed on a vast plain north of the planet in the Vastitas Borealis region. Image of martian ground taken by Phoenix Mars Lander on June 10, 2008. At left is a solar panel and at right the land's Robotic Arm with a sample in the scoop. The image was taken just before the sample was delivered to the Optical Microscope

Samples of Martian soil preleves by the Phoenix probe - Mars soil sample taken by Phoenix spacecraft - Image of Mars soil obtained by the Phoenix probe on June 10, 2008. On the left, one of his solar panels, on the right, his arm robotizes with samples of Martian soil. The probe landed on a vast plain north of the planet in the Vastitas Borealis region. Image of martian ground taken by Phoenix Mars Lander on June 10, 2008. At left is a solar panel and at right the land's Robotic Arm with a sample in the scoop. The image was taken just before the sample was delivered to the Optical Microscope

PIX4616608

Mercury seen by the Messenger probe - Mercury seen by Messenger spacecraft - Image of Mercury, obtained by the Messenger probe on October 6, 2008. The bright crater in the middle of the picture down is the Kuiper crater. The large striations north and east of the crater are observed for the first time by a space probe. Recolorised image. The spectacular image shows the departing planet taken about 90 minutes after the spacecraft's closest approach to Mercury on October 6, 2008. The bright crater just south of the center of the image is Kuiper, identified on images from the Mariner 10 mission in the 1970s. For most of the terrain east of Kuiper, toward the limb (edge) of the planet, the departing images are the first spacecraft views of that portion of Mercury's surface. A striking characteristic of this newly imaged area is the large pattern of rays that extend from the northern region of Mercury to regions south of Kuiper. This extensive ray system appears to emanate from a relatively

Mercury seen by the Messenger probe - Mercury seen by Messenger spacecraft - Image of Mercury, obtained by the Messenger probe on October 6, 2008. The bright crater in the middle of the picture down is the Kuiper crater. The large striations north and east of the crater are observed for the first time by a space probe. Recolorised image. The spectacular image shows the departing planet taken about 90 minutes after the spacecraft's closest approach to Mercury on October 6, 2008. The bright crater just south of the center of the image is Kuiper, identified on images from the Mariner 10 mission in the 1970s. For most of the terrain east of Kuiper, toward the limb (edge) of the planet, the departing images are the first spacecraft views of that portion of Mercury's surface. A striking characteristic of this newly imaged area is the large pattern of rays that extend from the northern region of Mercury to regions south of Kuiper. This extensive ray system appears to emanate from a relatively

PIX4617327

Martian dune erosion - Mars: Disappearing and Shrinking Dome Dunes - Dune sur Mars photographed by the HIRISE camera of the Mars Reconnaissance probe orbiting on January 30, 2008. HIRISE is a 50 cm telescope that observes visible and near infrared. This false - color image from the HIRISE (High Resolution Imaging Science Experiment) camera on Mars Recognition Orbiter was taken on January 30, 2008

Martian dune erosion - Mars: Disappearing and Shrinking Dome Dunes - Dune sur Mars photographed by the HIRISE camera of the Mars Reconnaissance probe orbiting on January 30, 2008. HIRISE is a 50 cm telescope that observes visible and near infrared. This false - color image from the HIRISE (High Resolution Imaging Science Experiment) camera on Mars Recognition Orbiter was taken on January 30, 2008

PIX4616448

Mercury by Messenger. 14/01/2008 - Mercury by Messenger - Jan 14 2008 - Image of the surface of Mercury obtained at a distance of 11,588 km by the Messenger probe on January 14, 2008. The large impact crater at the bottom left of the image is about 230 km in diameter. This image of Mercury's surface was acquired during Messenger's first flyby of the planet on January 14, 2008 when the spacecraft was 11,588 km (7,200 miles) from Mercury's surface. This scene shows at least five different events in Mercury's surface history. The large crater to the lower left of the image measures ~ 230 km (143 miles) in diameter and has a prominent crater, about 85 km (53 miles) across, nestled inside it, south of its center. Both of these craters were subsequently filled with a material that appears to have been emplaced in a relatively fluid form, as evidenced by the fact that the material “” embays”” or onlaps the ejecta blanket surrounding the rim of the smaller crater. The larger crater is filled a

Mercury by Messenger. 14/01/2008 - Mercury by Messenger - Jan 14 2008 - Image of the surface of Mercury obtained at a distance of 11,588 km by the Messenger probe on January 14, 2008. The large impact crater at the bottom left of the image is about 230 km in diameter. This image of Mercury's surface was acquired during Messenger's first flyby of the planet on January 14, 2008 when the spacecraft was 11,588 km (7,200 miles) from Mercury's surface. This scene shows at least five different events in Mercury's surface history. The large crater to the lower left of the image measures ~ 230 km (143 miles) in diameter and has a prominent crater, about 85 km (53 miles) across, nestled inside it, south of its center. Both of these craters were subsequently filled with a material that appears to have been emplaced in a relatively fluid form, as evidenced by the fact that the material “” embays”” or onlaps the ejecta blanket surrounding the rim of the smaller crater. The larger crater is filled a

PIX4617260

Perseverance and Ingenuity - 2021 (photo)

Perseverance and Ingenuity - 2021 (photo)

PIX7211143

Elliptical galaxy NGC 1275 in Perseus

Elliptical galaxy NGC 1275 in Perseus

PIX5620129

Remains of Supernova 1E0102.2 - 7219 - The Hubble Space Telescope photographed the remains of a supernova, a massive late-life star that exploded. Located 210,000 years of light from Earth, in the galaxy of the Little Magellan Cloud, 1E0102.2 - 7219 is now dissipated into blue filaments visible in the center of the image. At 50 years - light from the, top right, stars are born in a large gas cloud, the star-forming region N76 (Henize 1956). Composite images obtained in October 2003 and July 1995 with the ACS camera and the large field planetary camera

Remains of Supernova 1E0102.2 - 7219 - The Hubble Space Telescope photographed the remains of a supernova, a massive late-life star that exploded. Located 210,000 years of light from Earth, in the galaxy of the Little Magellan Cloud, 1E0102.2 - 7219 is now dissipated into blue filaments visible in the center of the image. At 50 years - light from the, top right, stars are born in a large gas cloud, the star-forming region N76 (Henize 1956). Composite images obtained in October 2003 and July 1995 with the ACS camera and the large field planetary camera

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Galaxy NGC 17 in the Whale - Galaxy NGC 17 in Cetus - The galaxy NGC 17 is located about 250 million years away from Earth. Presented with a single nucleus, its shape indicates that it has finished absorbing another galaxy. Image obtained by the Hubble Space Telescope on 4 July 2002. This galaxy features a single nucleus, a containing a blue central disk with delicate fine structure in the outer parts and tidal tails indicative of two former disk galaxies. At present these galaxies appear to have completed their merger. The remnant shows clear signs that the merger was gas - rich and accompanied by a starburst. NGC 17 is gas - rich and can sustain its strong central starburst and present mild central activity for some time to come. NGC 17 is located about 250 million light - years away in the constellation of Cetus, the Whale. Image taken by the Hubble space telescope on july 4, 2002

Galaxy NGC 17 in the Whale - Galaxy NGC 17 in Cetus - The galaxy NGC 17 is located about 250 million years away from Earth. Presented with a single nucleus, its shape indicates that it has finished absorbing another galaxy. Image obtained by the Hubble Space Telescope on 4 July 2002. This galaxy features a single nucleus, a containing a blue central disk with delicate fine structure in the outer parts and tidal tails indicative of two former disk galaxies. At present these galaxies appear to have completed their merger. The remnant shows clear signs that the merger was gas - rich and accompanied by a starburst. NGC 17 is gas - rich and can sustain its strong central starburst and present mild central activity for some time to come. NGC 17 is located about 250 million light - years away in the constellation of Cetus, the Whale. Image taken by the Hubble space telescope on july 4, 2002

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Elliptical galaxy NGC 1132 and distant galaxies - Elliptical galaxy NGC 1132 and distant galaxies - The galaxy NGC 1132 is about 320 million years - light from Earth in the constellation Eridan. This giant elliptical galaxy is surrounded by a vast halo of dark matter; it and the dwarf galaxies surrounding it are probably the rest of a larger group of galaxies that have merged over time. In the background, many more distant galaxies are visible. Composite of images obtained by the Hubble Space Telescope in 2005 and 2006. The elliptical galaxy NGC 1132, seen in this image from Hubble space telescope, belongs to a category of galaxies called giant ellipticals. NGC 1132, together with the small dwarf galaxies surrounding it, are dubbed a fossil group” as they are most likely the remains of a group of galaxies that merged together in the recent past. In visible light NGC 1132 appears as a single, isolated, giant elliptical galaxy, but this is only the tip of the iceberg. Scientists have fou

Elliptical galaxy NGC 1132 and distant galaxies - Elliptical galaxy NGC 1132 and distant galaxies - The galaxy NGC 1132 is about 320 million years - light from Earth in the constellation Eridan. This giant elliptical galaxy is surrounded by a vast halo of dark matter; it and the dwarf galaxies surrounding it are probably the rest of a larger group of galaxies that have merged over time. In the background, many more distant galaxies are visible. Composite of images obtained by the Hubble Space Telescope in 2005 and 2006. The elliptical galaxy NGC 1132, seen in this image from Hubble space telescope, belongs to a category of galaxies called giant ellipticals. NGC 1132, together with the small dwarf galaxies surrounding it, are dubbed a fossil group” as they are most likely the remains of a group of galaxies that merged together in the recent past. In visible light NGC 1132 appears as a single, isolated, giant elliptical galaxy, but this is only the tip of the iceberg. Scientists have fou

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Elliptical galaxy NGC 1275 in Persee - Elliptical galaxy NGC 1275 in Perseus - This image obtained by the Hubble space telescope in 1995 shows a system of two colliding galaxies; in the foreground, a spiral galaxy seen almost from the edge, with many stars forming in the background, a giant, very bright elliptical galaxy, special because it has a spiral structure in its center. Its core probably houses a black hole. NGC 1275 is located about 230 million years ago - light; it belongs to the large cluster of galaxies of Persee. These images, taken with Hubble's Wide Field Planetary Camera 2 (WFPC2), show traces of spiral structure accompanied by dramatic dust lanes and bright blue regions that mark areas of active star formation. Detailed observations of NGC 1275 indicate that the dusty material belongs to a spiral system seen nearly edge - on in the foreground. The second galaxy, lying beyond the first, is actually a giant elliptical with peculiar faint spiral structure in its nucleus.

Elliptical galaxy NGC 1275 in Persee - Elliptical galaxy NGC 1275 in Perseus - This image obtained by the Hubble space telescope in 1995 shows a system of two colliding galaxies; in the foreground, a spiral galaxy seen almost from the edge, with many stars forming in the background, a giant, very bright elliptical galaxy, special because it has a spiral structure in its center. Its core probably houses a black hole. NGC 1275 is located about 230 million years ago - light; it belongs to the large cluster of galaxies of Persee. These images, taken with Hubble's Wide Field Planetary Camera 2 (WFPC2), show traces of spiral structure accompanied by dramatic dust lanes and bright blue regions that mark areas of active star formation. Detailed observations of NGC 1275 indicate that the dusty material belongs to a spiral system seen nearly edge - on in the foreground. The second galaxy, lying beyond the first, is actually a giant elliptical with peculiar faint spiral structure in its nucleus.

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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

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Planetary Nebula M57 (NGC 6720) in the Lyre/HST - The Hubble Space Telescope has captured the sharpest view yet of M57, the Ring Nebula in Lyra, which is the most famous of all planetary nebulae. In this image, the telescope has looked down a tunnel of gas cast off by a dying star thousands of years ago. This photo reveals elongated dark clumps of material embedded in the gas at the edge of the nebula, and the dying central star floating in a blue haze of hot gas. The nebula is about a light - year in diameter, and is located some 2,000 light - years from Earth in the direction of the constellation Lyra. The colors are approximately true colors, and represent three different chemical elements: helium (blue), oxygen (green), and nitrogen (red). 16/10/1998 1hour exhibition

Planetary Nebula M57 (NGC 6720) in the Lyre/HST - The Hubble Space Telescope has captured the sharpest view yet of M57, the Ring Nebula in Lyra, which is the most famous of all planetary nebulae. In this image, the telescope has looked down a tunnel of gas cast off by a dying star thousands of years ago. This photo reveals elongated dark clumps of material embedded in the gas at the edge of the nebula, and the dying central star floating in a blue haze of hot gas. The nebula is about a light - year in diameter, and is located some 2,000 light - years from Earth in the direction of the constellation Lyra. The colors are approximately true colors, and represent three different chemical elements: helium (blue), oxygen (green), and nitrogen (red). 16/10/1998 1hour exhibition

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Saturn by the Hubble Space Telecope - natural colors - 11/1999 - Saturn seen from the Hubble Space Telescope in november 1999 - The Saturn Planet observed with the Hubble Space Telescope in November 1999. Saturn is 120,000 km in diameter

Saturn by the Hubble Space Telecope - natural colors - 11/1999 - Saturn seen from the Hubble Space Telescope in november 1999 - The Saturn Planet observed with the Hubble Space Telescope in November 1999. Saturn is 120,000 km in diameter

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Saturn and satellites seen by the Hubble space telescope - Saturn rings edge - on with satellites - Saturn observed by the Hubble space telescope on February 24, 2009 when the Earth is in the same plane as the rings, seen by the slice. This phenomene occurs every 15 years. The largest satellite, Titan, projects its shadow on the planet and three satellites are visible on the left: Mimas and its shadow are discernable on Titan's left, just above the rings, on its left, above the rings, Dione is clearly visible, and on the left, the Enceladus satellite. Several of Saturn's moons transiting the face of the gas giant planet. This is a rare event because the rings are tilted edge on to Earth every 15 years. This frame captures the giant moon Titan and its shadow near Saturn's northern polar hood. Tiny Mimas and its shadow are below, at left, slightly above the rings. To the far left off the disk, Dione, the brightest of the icy moons in this view - and Enceladus, fainter and farther to the

Saturn and satellites seen by the Hubble space telescope - Saturn rings edge - on with satellites - Saturn observed by the Hubble space telescope on February 24, 2009 when the Earth is in the same plane as the rings, seen by the slice. This phenomene occurs every 15 years. The largest satellite, Titan, projects its shadow on the planet and three satellites are visible on the left: Mimas and its shadow are discernable on Titan's left, just above the rings, on its left, above the rings, Dione is clearly visible, and on the left, the Enceladus satellite. Several of Saturn's moons transiting the face of the gas giant planet. This is a rare event because the rings are tilted edge on to Earth every 15 years. This frame captures the giant moon Titan and its shadow near Saturn's northern polar hood. Tiny Mimas and its shadow are below, at left, slightly above the rings. To the far left off the disk, Dione, the brightest of the icy moons in this view - and Enceladus, fainter and farther to the

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Map of the southern polar cap of Mars - Map of the southern pole of Mars showing different ice thickness in the basement. Reaching a thickness of 3.7 km, the volume of water ice contained in the basement of the southern Martian pole would reach 1.6 million km3, enough to cover the entire planet under an ocean 11 m deep! This map is based on data obtained by the Marsis radar on the European Mars Express probe.

Map of the southern polar cap of Mars - Map of the southern pole of Mars showing different ice thickness in the basement. Reaching a thickness of 3.7 km, the volume of water ice contained in the basement of the southern Martian pole would reach 1.6 million km3, enough to cover the entire planet under an ocean 11 m deep! This map is based on data obtained by the Marsis radar on the European Mars Express probe.

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Interacting galaxies NGC 1614 - Interacting galaxies NGC 1614 - The galaxy NGC 1614 is located about 200 million light years away from Earth in the southern constellation of Eridan. This system is composed of interacting galaxies. Image obtained by the Hubble Space Telescope on August 13, 2002. The galaxy system NGC 1614 has a bright optical center and two clear inner spiral arms that are fairly symmetrical. It also has a spectacular outer structure that consists principally of a large one - sided curved extension of one of these arms to the lower right, and a long, almost straight tail that emerges from the nucleus and crosses the extended arm to the upper right. The galaxy appears to be the result of a tidal interaction and the resulting merger of two predecessor systems. The system has a nuclear region of quasar - like luminosity, but shows no direct evidence for an active nucleus. It is heavily and unevenly reddened across its nucleus, while infrared imaging also shows a ridge of d

Interacting galaxies NGC 1614 - Interacting galaxies NGC 1614 - The galaxy NGC 1614 is located about 200 million light years away from Earth in the southern constellation of Eridan. This system is composed of interacting galaxies. Image obtained by the Hubble Space Telescope on August 13, 2002. The galaxy system NGC 1614 has a bright optical center and two clear inner spiral arms that are fairly symmetrical. It also has a spectacular outer structure that consists principally of a large one - sided curved extension of one of these arms to the lower right, and a long, almost straight tail that emerges from the nucleus and crosses the extended arm to the upper right. The galaxy appears to be the result of a tidal interaction and the resulting merger of two predecessor systems. The system has a nuclear region of quasar - like luminosity, but shows no direct evidence for an active nucleus. It is heavily and unevenly reddened across its nucleus, while infrared imaging also shows a ridge of d

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Galaxy M82 view in different wavelength - Galaxy M82 in multi - wavelength - Composite of different images: in blue the image obtained by Chandra in X-rays, in red the infrared image obtained by Spitzer, in yellow, orange, green, the image of Hubble. M82 is an irregular galaxy distant about 12 million years - light from Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions are rich in star formation. These hot stars blow a stellar wind that becomes a very violent galactic wind. Composite of multi - wavelength images of the active galaxy M82 from the three Great Observatories. X - ray data recorded by Chandra appears here in blue; infrared light recorded by Spitzer appears in red; Hubble's observations of hydrogen emission appears in orange, and the bluest visible light appears in yellow - green. Another Hubble observation designed to image 10,000 degree Celsius hydrogen gas (orange

Galaxy M82 view in different wavelength - Galaxy M82 in multi - wavelength - Composite of different images: in blue the image obtained by Chandra in X-rays, in red the infrared image obtained by Spitzer, in yellow, orange, green, the image of Hubble. M82 is an irregular galaxy distant about 12 million years - light from Earth. Its nucleus, which appears to have suffered from the passage of the neighbouring galaxy M81, is in a phase of violent star activity. Its central regions are rich in star formation. These hot stars blow a stellar wind that becomes a very violent galactic wind. Composite of multi - wavelength images of the active galaxy M82 from the three Great Observatories. X - ray data recorded by Chandra appears here in blue; infrared light recorded by Spitzer appears in red; Hubble's observations of hydrogen emission appears in orange, and the bluest visible light appears in yellow - green. Another Hubble observation designed to image 10,000 degree Celsius hydrogen gas (orange

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Galaxy NGC 4449 in Hunting Dogs - Galaxy NGC 4449 in Canes Venatici - Irregular dwarf galaxy located in the constellation Hunting Dogs, about 12.5 million years ago - light of Earth

Galaxy NGC 4449 in Hunting Dogs - Galaxy NGC 4449 in Canes Venatici - Irregular dwarf galaxy located in the constellation Hunting Dogs, about 12.5 million years ago - light of Earth

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

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

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Interacting galaxies UGC 8058 - Interacting galaxies UGC 8058 - The galaxy UGC 8058 (Markarian 231) is located about 600 million light years away from Earth in the constellation Big Bear. This interacting galaxy houses a quasar in its center. It is one of the brightest ultra-bright infrared galaxy known to date. It has a central black hole and intense star formations are observed. Image obtained by the Hubble Space Telescope on May 10, 2002. The extraordinary galaxy UGC 8058, also known as Markarian 231, was discovered in 1969 as part of a survey searching for galaxies with strong ultraviolet radiation. It has long tidal tails and a disturbed shape. Results from the first spectrum showed clear signs of the presence of a powerful quasar in the center that made Markarian 231 unique in the Markarian sample. Markarian 231 has maintained its reputation as an exceptional object since those early observations and continues to be a favorite target in all wavelength regimes. Its infrared lumino

Interacting galaxies UGC 8058 - Interacting galaxies UGC 8058 - The galaxy UGC 8058 (Markarian 231) is located about 600 million light years away from Earth in the constellation Big Bear. This interacting galaxy houses a quasar in its center. It is one of the brightest ultra-bright infrared galaxy known to date. It has a central black hole and intense star formations are observed. Image obtained by the Hubble Space Telescope on May 10, 2002. The extraordinary galaxy UGC 8058, also known as Markarian 231, was discovered in 1969 as part of a survey searching for galaxies with strong ultraviolet radiation. It has long tidal tails and a disturbed shape. Results from the first spectrum showed clear signs of the presence of a powerful quasar in the center that made Markarian 231 unique in the Markarian sample. Markarian 231 has maintained its reputation as an exceptional object since those early observations and continues to be a favorite target in all wavelength regimes. Its infrared lumino

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Markarian Galaxy 273 - Galaxy Markarian 273 - The Markarian galaxy 273 is about 500 million light years away from Earth in the constellation of the Great Bear. The presence of a 130,000-year-long maree tail suggests that Markarian 273 is the fusion of two galaxies. The collision caused a burst of star formations. This galaxy has a double core and is one of the brightest infrared galaxies. Image obtained by the Hubble Space Telescope on November 16, 2001. Markarian 273 shows an intricate central region and a striking tail that extends diagonally towards the bottom - right of the image. The tail is about 130 thousand light - years long and is strongly indicative of a merger between two galaxies. Markarian 273 has an intense region of starburst, where 60 solar masses of new stars are born each year. Near - infrared observations reveal a nucleus with two components. Markarian 273 is one of the most luminous galaxies when observed in the infrared, and is located 500 million light - years aw

Markarian Galaxy 273 - Galaxy Markarian 273 - The Markarian galaxy 273 is about 500 million light years away from Earth in the constellation of the Great Bear. The presence of a 130,000-year-long maree tail suggests that Markarian 273 is the fusion of two galaxies. The collision caused a burst of star formations. This galaxy has a double core and is one of the brightest infrared galaxies. Image obtained by the Hubble Space Telescope on November 16, 2001. Markarian 273 shows an intricate central region and a striking tail that extends diagonally towards the bottom - right of the image. The tail is about 130 thousand light - years long and is strongly indicative of a merger between two galaxies. Markarian 273 has an intense region of starburst, where 60 solar masses of new stars are born each year. Near - infrared observations reveal a nucleus with two components. Markarian 273 is one of the most luminous galaxies when observed in the infrared, and is located 500 million light - years aw

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Lenticular Galaxy M102 (NGC 5866) in the Dragon - Edge - on view of M102 (NGC 5866) in Draco - This galaxy from the slice is located 44 million years - light from Earth. Its diameter is 60,000 years - light. Image obtained by the ACS camera of the Hubble space telescope in February 2006. The lenticular galaxy NGC 5866 is about 44 million light - years from Earth in the Northern constellation Draco. Its diameter is approximately 60,000 light - years, two - thirds the diameter of the Milky Way, and its mass is similar to our galaxy. Hubble image taken with the Advanced Camera for Surveys in February 2006

Lenticular Galaxy M102 (NGC 5866) in the Dragon - Edge - on view of M102 (NGC 5866) in Draco - This galaxy from the slice is located 44 million years - light from Earth. Its diameter is 60,000 years - light. Image obtained by the ACS camera of the Hubble space telescope in February 2006. The lenticular galaxy NGC 5866 is about 44 million light - years from Earth in the Northern constellation Draco. Its diameter is approximately 60,000 light - years, two - thirds the diameter of the Milky Way, and its mass is similar to our galaxy. Hubble image taken with the Advanced Camera for Surveys in February 2006

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Galaxy of Hunting Dogs - M51 visible and infrared - Spiral galaxy M51 in Canes Venatici. Visible - Infrared - The spiral galaxy M51 (NGC 5194) is about 31 million light years away from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. Images obtained on the left by Kitt Peak's 2.1 m telescope, on the right by the Spitzer space telescope. Located in the constellation of Canes Venatici, the “” hunting dogs””, M51 consists of the large spiral galaxy NGC 5194 and its smaller companion NGC 5195. M51 is approximately 31 million light years away and over 65,000 light years in diameter. At left the galaxy seen in visible, at right, seen in infrared with the Spitzer space telescope

Galaxy of Hunting Dogs - M51 visible and infrared - Spiral galaxy M51 in Canes Venatici. Visible - Infrared - The spiral galaxy M51 (NGC 5194) is about 31 million light years away from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. Images obtained on the left by Kitt Peak's 2.1 m telescope, on the right by the Spitzer space telescope. Located in the constellation of Canes Venatici, the “” hunting dogs””, M51 consists of the large spiral galaxy NGC 5194 and its smaller companion NGC 5195. M51 is approximately 31 million light years away and over 65,000 light years in diameter. At left the galaxy seen in visible, at right, seen in infrared with the Spitzer space telescope

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Spiral galaxy NGC 4622 in Centaurus - Spiral galaxy NGC 4622 in Centaurus - The spiral galaxy NGC 4622 is located 111 million light years ago in the southern constellation of Centaurus. The image obtained by the Hubble Space Telescope in May 2001 shows regions filled with new stars in blue. Astronomers have observed that, unlike other known spiral galaxies, it is the outer arms of this galaxy that rotate the whole, rotating in the same direction as the center; moreover, an inner arm of the galaxy would rotate in the opposite direction. A small galaxy absorbed by NGC 4622 could be responsible for this anomaly. NGC 4622 resides 111 million light - years away in the constellation Centaurus. The image taken in May 2001 with Hubble's Wide Field Planetary Camera 2 shows NGC 4622 and its outer pair of winding arms full of new stars (shown in blue). Astronomers are puzzled by the clockwise rotation because of the direction the outer spiral arms are pointing. Most spiral galaxies have arms of g

Spiral galaxy NGC 4622 in Centaurus - Spiral galaxy NGC 4622 in Centaurus - The spiral galaxy NGC 4622 is located 111 million light years ago in the southern constellation of Centaurus. The image obtained by the Hubble Space Telescope in May 2001 shows regions filled with new stars in blue. Astronomers have observed that, unlike other known spiral galaxies, it is the outer arms of this galaxy that rotate the whole, rotating in the same direction as the center; moreover, an inner arm of the galaxy would rotate in the opposite direction. A small galaxy absorbed by NGC 4622 could be responsible for this anomaly. NGC 4622 resides 111 million light - years away in the constellation Centaurus. The image taken in May 2001 with Hubble's Wide Field Planetary Camera 2 shows NGC 4622 and its outer pair of winding arms full of new stars (shown in blue). Astronomers are puzzled by the clockwise rotation because of the direction the outer spiral arms are pointing. Most spiral galaxies have arms of g

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Galaxy Centaurus A (NGC 5128) x-ray view - radio - visible - Galaxy Centaurus A in different wavelengths - false-coloured view of the 30,000-year long jet - light escaping from the nucleus of the Centaurus A galaxy where a massive black hole is suspected. On this composite image obtained in X, radio, and visible, two large X-emission arcs surround this jet over a diameter of 25,000 years - light. These hot arcs could be the result of a gigantic explosion that occurred 10 million years ago in the nucleus of the galaxy. The galaxy NGC 5128 is located about 13 million light years away from Earth. A composite X - ray (blue), radio (pink and green), and optical (orange and yellow) image of the galaxy Centaurus A presents a stunning view of a galaxy in turmoil. A broad band of dust and cold gas is bisected at an angle by opposing jets of high - energy particles blasting away from the supermassive black hole in the nucleus. Two large arcs of X - ray emitting hot gas were discovered in the out

Galaxy Centaurus A (NGC 5128) x-ray view - radio - visible - Galaxy Centaurus A in different wavelengths - false-coloured view of the 30,000-year long jet - light escaping from the nucleus of the Centaurus A galaxy where a massive black hole is suspected. On this composite image obtained in X, radio, and visible, two large X-emission arcs surround this jet over a diameter of 25,000 years - light. These hot arcs could be the result of a gigantic explosion that occurred 10 million years ago in the nucleus of the galaxy. The galaxy NGC 5128 is located about 13 million light years away from Earth. A composite X - ray (blue), radio (pink and green), and optical (orange and yellow) image of the galaxy Centaurus A presents a stunning view of a galaxy in turmoil. A broad band of dust and cold gas is bisected at an angle by opposing jets of high - energy particles blasting away from the supermassive black hole in the nucleus. Two large arcs of X - ray emitting hot gas were discovered in the out

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Martian Oppositions. - View of the various Martian Oppositions photographed by the Hubble Space Telescope from 1995 to 2005. This mosaic shows variations in the apparent diameter of Mars. Mars was closest to Earth, 56 million km, in 2003

Martian Oppositions. - View of the various Martian Oppositions photographed by the Hubble Space Telescope from 1995 to 2005. This mosaic shows variations in the apparent diameter of Mars. Mars was closest to Earth, 56 million km, in 2003

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Earth/Moon by GOES - SeaWIFS - POES - Earth and Moon viewed by GOES (Geostationary Operational Environmental Satellite), SeaWIFS (Sea - viewing Wide Field - of - view Sensor) and POES (Polar Orbiting Environmental Satellites) between September and October 1997

Earth/Moon by GOES - SeaWIFS - POES - Earth and Moon viewed by GOES (Geostationary Operational Environmental Satellite), SeaWIFS (Sea - viewing Wide Field - of - view Sensor) and POES (Polar Orbiting Environmental Satellites) between September and October 1997

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Globular cluster NGC 6397 in the Altar - Stars in globular cluster NGC 6397 in Ara - Image of the center of the globular cluster NGC 6397 located 8200 years - light in the southern constellation of the Altar. The density of stars is very important, the stars are distant from each other only a few weeks light (the star closest to our Sun is four years away - light). Sometimes a collision between two stars occurs; they merge into a single, young, bright and warm star called a blue straggler; some of these stars are visible near the center of the image. This Hubble Space Telescope view of the core of one of the nearest globular star clusters, called NGC 6397, located 8,200 light - years away in the constellation Ara. The stellar density is about a million times greater than in our Sun's stellar neighborhood. The stars are only a few light - weeks apart, while the nearest star to our Sun is over four light - years away. The ancient stars are so crowded together that a few of them inevitabl

Globular cluster NGC 6397 in the Altar - Stars in globular cluster NGC 6397 in Ara - Image of the center of the globular cluster NGC 6397 located 8200 years - light in the southern constellation of the Altar. The density of stars is very important, the stars are distant from each other only a few weeks light (the star closest to our Sun is four years away - light). Sometimes a collision between two stars occurs; they merge into a single, young, bright and warm star called a blue straggler; some of these stars are visible near the center of the image. This Hubble Space Telescope view of the core of one of the nearest globular star clusters, called NGC 6397, located 8,200 light - years away in the constellation Ara. The stellar density is about a million times greater than in our Sun's stellar neighborhood. The stars are only a few light - weeks apart, while the nearest star to our Sun is over four light - years away. The ancient stars are so crowded together that a few of them inevitabl

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Galaxy Cluster Abell S0740 in Centaurus - Galaxy Cluster Abell S0740 in Centaurus - The Hubble space telescope photographed a cluster of galaxies 450 million years ago - Earth light, Abell S0740. There are galaxies of various shapes alongside the giant elliptical galaxy ESO 325 - G004. Image obtained by the ACS camera in January 2005 and February 2006. Hubble Space Telescope image showing the diverse collection of galaxies in a galaxy cluster Abell S0740, at about 450 million light - years away in the constellation Centaurus. The giant elliptical galaxy ESO 325 - G004 looms large at the club's center

Galaxy Cluster Abell S0740 in Centaurus - Galaxy Cluster Abell S0740 in Centaurus - The Hubble space telescope photographed a cluster of galaxies 450 million years ago - Earth light, Abell S0740. There are galaxies of various shapes alongside the giant elliptical galaxy ESO 325 - G004. Image obtained by the ACS camera in January 2005 and February 2006. Hubble Space Telescope image showing the diverse collection of galaxies in a galaxy cluster Abell S0740, at about 450 million light - years away in the constellation Centaurus. The giant elliptical galaxy ESO 325 - G004 looms large at the club's center

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The star Fomalhaut - Star Fomalhaut - The star Fomalhaut is located 25 years - light from Earth in the constellation Southern Fish. An extrasolar planet, called Fomalhaut b, with a mass close to Jupiter, is in orbit around it. This image shows Fomalhaut, the star around which the discovered planet Fomalhaut b orbits. Fomalhaut is much hotter than our Sun, 15 times as bright, and lies 25 light - years from Earth. It is blazing through hydrogen at such a furious rate that it will burn out in only one billion years, 10% the lifespan of our star. The field of view is 2.7 x 2.9 degrees

The star Fomalhaut - Star Fomalhaut - The star Fomalhaut is located 25 years - light from Earth in the constellation Southern Fish. An extrasolar planet, called Fomalhaut b, with a mass close to Jupiter, is in orbit around it. This image shows Fomalhaut, the star around which the discovered planet Fomalhaut b orbits. Fomalhaut is much hotter than our Sun, 15 times as bright, and lies 25 light - years from Earth. It is blazing through hydrogen at such a furious rate that it will burn out in only one billion years, 10% the lifespan of our star. The field of view is 2.7 x 2.9 degrees

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March - Satellite Phobos - Martian moon Phobos - View of the satellite Phobos obtained on March 23, 2008 at a distance of 6800 km from the satellite

March - Satellite Phobos - Martian moon Phobos - View of the satellite Phobos obtained on March 23, 2008 at a distance of 6800 km from the satellite

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Mercury by Messenger. 14/01/2008 - Mercury by Messenger - Jan 14 2008 - Mosaic of images obtained by the Messenger probe on January 14, 2008 at 12,800 and 16,700 km from the planet. The probe with its wide-angle camera reveals here part of the surface of Mercury never seen before. At the top right, the clear spot is the Caloris Impact Pond. Image obtained through different filters in visible and infrared

Mercury by Messenger. 14/01/2008 - Mercury by Messenger - Jan 14 2008 - Mosaic of images obtained by the Messenger probe on January 14, 2008 at 12,800 and 16,700 km from the planet. The probe with its wide-angle camera reveals here part of the surface of Mercury never seen before. At the top right, the clear spot is the Caloris Impact Pond. Image obtained through different filters in visible and infrared

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The Helix Nebula (NGC 7293) (photo)

The Helix Nebula (NGC 7293) (photo)

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Detail of nebula NGC 3372 in Carene - Eta Carinae nebula detail - Detail of nebula NGC 3372 in the constellation Carene. Within the dark structures visible in this image, stars will be born. Image obtained by the Hubble Space Telescope in 2005 and 2010. These one - light - year - tall pillars of cold hydrogen and dust, imaged by the Hubble Space Telescope, are located in the Carina Nebula. Violent stellar winds and powerful radiation from massive stars are sculpting the surrounding nebula. Inside the dense structures, new stars may be born. This image of dust pillars in the Carina Nebula is a composite of 2005 observations taken of the region in hydrogen light (light emitted by hydrogen atoms) along with 2010 observations taken in oxygen light (light emitted by oxygen atoms), both times with Hubble's Advanced Camera for Surveys. The immense Carina Nebula is an estimated 7,500 light - years away in the southern constellation Carina

Detail of nebula NGC 3372 in Carene - Eta Carinae nebula detail - Detail of nebula NGC 3372 in the constellation Carene. Within the dark structures visible in this image, stars will be born. Image obtained by the Hubble Space Telescope in 2005 and 2010. These one - light - year - tall pillars of cold hydrogen and dust, imaged by the Hubble Space Telescope, are located in the Carina Nebula. Violent stellar winds and powerful radiation from massive stars are sculpting the surrounding nebula. Inside the dense structures, new stars may be born. This image of dust pillars in the Carina Nebula is a composite of 2005 observations taken of the region in hydrogen light (light emitted by hydrogen atoms) along with 2010 observations taken in oxygen light (light emitted by oxygen atoms), both times with Hubble's Advanced Camera for Surveys. The immense Carina Nebula is an estimated 7,500 light - years away in the southern constellation Carina

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Saturn by the Hubble Space Telescope - from 1996 to 2000 - The Saturn Planet observed with the Hubble Space Telescope from Bottom to Top in October 1996 (Bottom), October 1997, October 1998, November 1999 and November 2000

Saturn by the Hubble Space Telescope - from 1996 to 2000 - The Saturn Planet observed with the Hubble Space Telescope from Bottom to Top in October 1996 (Bottom), October 1997, October 1998, November 1999 and November 2000

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The planet Saturn observed with the Hubble space telescope in October 1998. Saturn is 120,000 km in diameter: The Planet Saturn seen by the Hubble Space Telescope in 1998 - Saturn seen from the Hubble Space Telescope in october 1998.

The planet Saturn observed with the Hubble space telescope in October 1998. Saturn is 120,000 km in diameter: The Planet Saturn seen by the Hubble Space Telescope in 1998 - Saturn seen from the Hubble Space Telescope in october 1998.

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

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

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

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

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

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

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Planetary nebula NGC 6543 dans le Dragon/HST - The nebula, formally cataloged NGC 6543 was one of the first planetary nebulae to be discovered; it is one of the most complex such nebulae seen in space. A planetary nebula forms when Sun - like stars gently eject their outer gaseous layers that form bright nebulae with amazing and confounding shapes. In 1994, Hubble first revealed NGC 6543's surprisingly intricate structures, including concentric gas shells, jets of high - speed gas, and unusual shock - induced knots of gas. As if the Cat's Eye itself isn't spectacular enough, this new image taken with Hubble's Advanced Camera for Surveys (ACS) reveals the full beauty of a bull's eye pattern of eleven or even more concentric rings, or shells, around the Cat's Eye. Each 'ring' is actually the edge of a spherical bubble seen projected onto the sky - - that's why it appears bright along its outer edge. Observations suggest the star ejected its mass in a series of pulses at 1,500 - year inte

Planetary nebula NGC 6543 dans le Dragon/HST - The nebula, formally cataloged NGC 6543 was one of the first planetary nebulae to be discovered; it is one of the most complex such nebulae seen in space. A planetary nebula forms when Sun - like stars gently eject their outer gaseous layers that form bright nebulae with amazing and confounding shapes. In 1994, Hubble first revealed NGC 6543's surprisingly intricate structures, including concentric gas shells, jets of high - speed gas, and unusual shock - induced knots of gas. As if the Cat's Eye itself isn't spectacular enough, this new image taken with Hubble's Advanced Camera for Surveys (ACS) reveals the full beauty of a bull's eye pattern of eleven or even more concentric rings, or shells, around the Cat's Eye. Each 'ring' is actually the edge of a spherical bubble seen projected onto the sky - - that's why it appears bright along its outer edge. Observations suggest the star ejected its mass in a series of pulses at 1,500 - year inte

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Star HD 189733 and nebula planetary Dumbbell (M27) - A star field with HD 189733 and Dumbell nebula - Image centree on the star HD 189733 located 63 years ago - light in the constellation Petite Fox. Astronomers discovered around this star an exoplanet (HD 189733b). This gas planet a little bigger than Jupiter is very close to its star; this type of planet is called hot Jupiter. We detected the presence of mists in his atmosphere. To the right of this star is the planetary nebula Dumbbell (M27) located about 1400 years from Earth. A planetary nebula is a gas shell from a small late-life star whose heart collapsed to become a white dwarf and expelled the outer layers of its matter. A star field image showing the star HD 189733 (centre) with Dumbell nebula. Orbiting close to its parent star, is an extrasolar planet, HD 189733b, a 'hot - Jupiter' type of gas giant slightly larger than Jupiter. The observations provide clear evidence of the presence of hazes in its atmosphere. To the right

Star HD 189733 and nebula planetary Dumbbell (M27) - A star field with HD 189733 and Dumbell nebula - Image centree on the star HD 189733 located 63 years ago - light in the constellation Petite Fox. Astronomers discovered around this star an exoplanet (HD 189733b). This gas planet a little bigger than Jupiter is very close to its star; this type of planet is called hot Jupiter. We detected the presence of mists in his atmosphere. To the right of this star is the planetary nebula Dumbbell (M27) located about 1400 years from Earth. A planetary nebula is a gas shell from a small late-life star whose heart collapsed to become a white dwarf and expelled the outer layers of its matter. A star field image showing the star HD 189733 (centre) with Dumbell nebula. Orbiting close to its parent star, is an extrasolar planet, HD 189733b, a 'hot - Jupiter' type of gas giant slightly larger than Jupiter. The observations provide clear evidence of the presence of hazes in its atmosphere. To the right

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Galaxy IC 883 - Galaxy IC 883 - The particular galaxy IC 883 (Arp 193) is located about 300 million light years away from Earth in the constellation Hunting Dogs. Its shape presents two antennas, maree tails, suggesting that IC 883 is the fusion of two galaxies. The collision caused a burst of star formations as evidenced by the presence of star clusters in the central region. Image obtained by the Hubble Space Telescope on January 10, 2002. IC 883 displays a very disturbed, complex central region with two tidal tails of approximately the same length emerging at nearly right angles: one diagonally to the top right of the frame and the other to the bottom right. The twin tidal tails suggest that IC 883 is the remnant of the merger of two gas - rich disk galaxies. The collision appears to have triggered a burst of star formation, indicated by a number of bright star clusters in the central region. IC 883 is 300 million light - years away towards the constellation of Canes Venatici, the H

Galaxy IC 883 - Galaxy IC 883 - The particular galaxy IC 883 (Arp 193) is located about 300 million light years away from Earth in the constellation Hunting Dogs. Its shape presents two antennas, maree tails, suggesting that IC 883 is the fusion of two galaxies. The collision caused a burst of star formations as evidenced by the presence of star clusters in the central region. Image obtained by the Hubble Space Telescope on January 10, 2002. IC 883 displays a very disturbed, complex central region with two tidal tails of approximately the same length emerging at nearly right angles: one diagonally to the top right of the frame and the other to the bottom right. The twin tidal tails suggest that IC 883 is the remnant of the merger of two gas - rich disk galaxies. The collision appears to have triggered a burst of star formation, indicated by a number of bright star clusters in the central region. IC 883 is 300 million light - years away towards the constellation of Canes Venatici, the H

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Distant galaxies in the Fornax constellation - Distant galaxies in the Fornax constellation - Image of distant galaxies obtained by the Hubble space telescope in the constellation Forneau in September 2003. This image represents a typical view of our distant universe. In taking this picture, Hubble is looking down a long corridor of galaxies stretching billions of light - years distant in space, corresponding to looking billions of years back in time. The field shown in this picture covers a relatively small patch of sky, a fraction of the area of the full moon, yet it is richly populated with a variety of galaxy types. A handful of large fully formed galaxies are scattered throughout the image. These galaxies are easy to see because they are relatively close to us. Several of the galaxies are spirals with flat disks that are oriented edge - on or face - on to our line of sight, or somewhere in between. Elliptical galaxies and more exotic galaxies with bars or tidal tails are also visi

Distant galaxies in the Fornax constellation - Distant galaxies in the Fornax constellation - Image of distant galaxies obtained by the Hubble space telescope in the constellation Forneau in September 2003. This image represents a typical view of our distant universe. In taking this picture, Hubble is looking down a long corridor of galaxies stretching billions of light - years distant in space, corresponding to looking billions of years back in time. The field shown in this picture covers a relatively small patch of sky, a fraction of the area of the full moon, yet it is richly populated with a variety of galaxy types. A handful of large fully formed galaxies are scattered throughout the image. These galaxies are easy to see because they are relatively close to us. Several of the galaxies are spirals with flat disks that are oriented edge - on or face - on to our line of sight, or somewhere in between. Elliptical galaxies and more exotic galaxies with bars or tidal tails are also visi

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Sagittarius dwarf irregular galaxy - SagDig - Sagittarius dwarf irregular galaxy - Image of the irregular dwarf galaxy ESO 594 - 4 located 3.5 million years ago - light seen by the Hubble space telescope on August 18, 2003. The Sagittarius dwarf irregular galaxy (SagDig, ESO 594 - 4) lies some 3.5 million light - years (1.1 Megaparsecs) from us. Background galaxies (reddish/brown extended objects with spiral arms and halos) are located even further beyond SagDig at several tens of millions parsecs away. This dwarf irregular galaxy was observed by the Advanced Camera for Surveys on - board the Hubble Space Telescope on 18 August 2003. Fifty-minute exposures were taken in blue, green and red filters

Sagittarius dwarf irregular galaxy - SagDig - Sagittarius dwarf irregular galaxy - Image of the irregular dwarf galaxy ESO 594 - 4 located 3.5 million years ago - light seen by the Hubble space telescope on August 18, 2003. The Sagittarius dwarf irregular galaxy (SagDig, ESO 594 - 4) lies some 3.5 million light - years (1.1 Megaparsecs) from us. Background galaxies (reddish/brown extended objects with spiral arms and halos) are located even further beyond SagDig at several tens of millions parsecs away. This dwarf irregular galaxy was observed by the Advanced Camera for Surveys on - board the Hubble Space Telescope on 18 August 2003. Fifty-minute exposures were taken in blue, green and red filters

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Interacting galaxies NGC 454 - Interacting galaxies NGC 454 - NGC 454 is located about 164 million light years away from Earth in the southern constellation of Phenix. This pair of interacting galaxies consists of a large elliptical galaxy and an irregular galaxy. The fusion process between the two galaxies is still in its early stages and no sign of star formation caused by this interaction has been detected. Image obtained by the Hubble Space Telescope on 6 March 1997. NGC 454 is galaxy pair comprising a large red elliptical galaxy and an irregular gas - rich blue galaxy. The system is in the early stages of an interaction that has severely distorted both components. The three bright blue knots of very young stars to the left of the two main components are probably part of the irregular blue galaxy. Although the dust lanes that stretch all the way to the center of the elliptical galaxy suggest that gas has penetrated that far, no signs of star formation or nuclear activity are visibl

Interacting galaxies NGC 454 - Interacting galaxies NGC 454 - NGC 454 is located about 164 million light years away from Earth in the southern constellation of Phenix. This pair of interacting galaxies consists of a large elliptical galaxy and an irregular galaxy. The fusion process between the two galaxies is still in its early stages and no sign of star formation caused by this interaction has been detected. Image obtained by the Hubble Space Telescope on 6 March 1997. NGC 454 is galaxy pair comprising a large red elliptical galaxy and an irregular gas - rich blue galaxy. The system is in the early stages of an interaction that has severely distorted both components. The three bright blue knots of very young stars to the left of the two main components are probably part of the irregular blue galaxy. Although the dust lanes that stretch all the way to the center of the elliptical galaxy suggest that gas has penetrated that far, no signs of star formation or nuclear activity are visibl

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Region around the spiral galaxy M74 in Pisces - Region of sky around the spiral galaxy M74 in Pisces - An image of the region of sky around M74, from the Digitized Sky Survey 2. The field - of - view is approximately 2.8 x 2.8 degrees

Region around the spiral galaxy M74 in Pisces - Region of sky around the spiral galaxy M74 in Pisces - An image of the region of sky around M74, from the Digitized Sky Survey 2. The field - of - view is approximately 2.8 x 2.8 degrees

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Spiral galaxy NGC 3949 in the Great Bear - Spiral galaxy NGC 3949 in Ursa Major - The spiral galaxy NGC 3949 is located about 50 million years away - light from Earth. This image was taken by the Hubble Space Telescope in October 2001. Like our Milky Way, this galaxy has a blue disk of young stars peppered with bright pink star - birth regions. In contrast to the blue disk, the bright central bulge is made up of mostly older, redder stars. NGC 3949 lies about 50 million light - years from Earth. It is a member of a loose cluster of some six or seven dozens of galaxies located in the direction of the Big Dipper, in the constellation Ursa Major (the Great Bear). It is one of the larger galaxies of this cluster. This image was created from Hubble data taken with the Wide Field Planetary Camera 2 in October 2001. Separate exposures through blue, visible, and near - infrared filters have been combined to make the natural color picture

Spiral galaxy NGC 3949 in the Great Bear - Spiral galaxy NGC 3949 in Ursa Major - The spiral galaxy NGC 3949 is located about 50 million years away - light from Earth. This image was taken by the Hubble Space Telescope in October 2001. Like our Milky Way, this galaxy has a blue disk of young stars peppered with bright pink star - birth regions. In contrast to the blue disk, the bright central bulge is made up of mostly older, redder stars. NGC 3949 lies about 50 million light - years from Earth. It is a member of a loose cluster of some six or seven dozens of galaxies located in the direction of the Big Dipper, in the constellation Ursa Major (the Great Bear). It is one of the larger galaxies of this cluster. This image was created from Hubble data taken with the Wide Field Planetary Camera 2 in October 2001. Separate exposures through blue, visible, and near - infrared filters have been combined to make the natural color picture

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Star Formation in the dwarf galaxy NGC 1569 - Starburst galaxy NGC 1569 - NGC 1569 is a dwarf irregular galaxy in the constellation Giraffe. The Hubble space telescope measured its distance with precision, placing it 11 million years - light from Earth, or 4 million years - light beyond the distance previously established by astronomers. This new measure explains better why this galaxy has a particularly high star formation rate. It resides among a group of galaxies that by gravity compresses its gas, thus creating a hundred times more stars than in our own galaxy. NGC 1569 is located in the middle of a group of about 10 galaxies centered on the spiral galaxy IC 342. Gravitational interactions among the group's galaxies may be compressing gas in NGC 1569 and igniting the star - birthing frenzy. The galaxy is forming stars at a rate more than 100 times higher than the rate in the Milky Way. This high star - formation rate has been almost continuous for the past 100 million years. Thanks

Star Formation in the dwarf galaxy NGC 1569 - Starburst galaxy NGC 1569 - NGC 1569 is a dwarf irregular galaxy in the constellation Giraffe. The Hubble space telescope measured its distance with precision, placing it 11 million years - light from Earth, or 4 million years - light beyond the distance previously established by astronomers. This new measure explains better why this galaxy has a particularly high star formation rate. It resides among a group of galaxies that by gravity compresses its gas, thus creating a hundred times more stars than in our own galaxy. NGC 1569 is located in the middle of a group of about 10 galaxies centered on the spiral galaxy IC 342. Gravitational interactions among the group's galaxies may be compressing gas in NGC 1569 and igniting the star - birthing frenzy. The galaxy is forming stars at a rate more than 100 times higher than the rate in the Milky Way. This high star - formation rate has been almost continuous for the past 100 million years. Thanks

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Barree spiral galaxy NGC 1672 in Dorado - Barred spiral galaxy NGC 1672 in Dorado - The barree spiral galaxy NGC 1672 is located 60 million years - light in the southern constellation of Dorado. Intense star formations are observed and many clusters of young stars are visible in the arms of the galaxy. NGC 1672 is a galaxy of Seyfert, whose core houses a supermassive black hole

Barree spiral galaxy NGC 1672 in Dorado - Barred spiral galaxy NGC 1672 in Dorado - The barree spiral galaxy NGC 1672 is located 60 million years - light in the southern constellation of Dorado. Intense star formations are observed and many clusters of young stars are visible in the arms of the galaxy. NGC 1672 is a galaxy of Seyfert, whose core houses a supermassive black hole

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M87 elliptical galaxy in Virgo - M87 elliptical galaxy in Virgo - The M87 galaxy (NGC 4486) is 54 million years ago - light from Earth, in the heart of the Virgin's cluster. This composite image obtained by the Hubble space telescope in 2003 and 2006 shows a gigantic jet of gas material ejected from the heart of the galaxy. A supermassive black hole would have caused this jet. The monstrous elliptical galaxy M87 is the home of several trillion stars, a supermassive black hole, and a family of 13,000 globular star clusters. M87 is the dominant galaxy at the center of the neighboring Virgo cluster of galaxies, which contains some 2,000 galaxies. Amid the smooth, yellow population of older stars, the two features that stand out most in this Hubble Space Telescope image of M87 are its soft blue jet and the myriad of starlike globular clusters scattered throughout the image. The jet is a black - hole - powered stream of material that is being ejected from the core of the galaxy. As gaseous

M87 elliptical galaxy in Virgo - M87 elliptical galaxy in Virgo - The M87 galaxy (NGC 4486) is 54 million years ago - light from Earth, in the heart of the Virgin's cluster. This composite image obtained by the Hubble space telescope in 2003 and 2006 shows a gigantic jet of gas material ejected from the heart of the galaxy. A supermassive black hole would have caused this jet. The monstrous elliptical galaxy M87 is the home of several trillion stars, a supermassive black hole, and a family of 13,000 globular star clusters. M87 is the dominant galaxy at the center of the neighboring Virgo cluster of galaxies, which contains some 2,000 galaxies. Amid the smooth, yellow population of older stars, the two features that stand out most in this Hubble Space Telescope image of M87 are its soft blue jet and the myriad of starlike globular clusters scattered throughout the image. The jet is a black - hole - powered stream of material that is being ejected from the core of the galaxy. As gaseous

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Interacting Galaxies Arp 240 - Interacting galaxies Arp 240 - The galaxy Arp 240 is located about 300 million light years away from Earth in the constellation of the Virgin. Composed of spiral galaxies NGC 5257 and NGC 5258, this interacting system presents important star formations. The two galaxies contain a supermassive black hole in the centre. Image obtained by the Hubble Space Telescope on 20 December 2001. NGC 5257/8 (Arp 240) is an astonishing galaxy pair, composed of spiral galaxies of similar mass and size, NGC 5257 and NGC 5258. The galaxies are visibly interacting with each other via a bridge of dim stars connecting the two galaxies, almost like two dancers holding hands while performing a pirouette. Both galaxies harbor supermassive black holes in their centers and are actively forming new stars in their disks. Arp 240 is located in the constellation Virgo, approximately 300 million light - years away, and is the 240th galaxy in ARP's Atlas of Peculiar Galaxies. With the e

Interacting Galaxies Arp 240 - Interacting galaxies Arp 240 - The galaxy Arp 240 is located about 300 million light years away from Earth in the constellation of the Virgin. Composed of spiral galaxies NGC 5257 and NGC 5258, this interacting system presents important star formations. The two galaxies contain a supermassive black hole in the centre. Image obtained by the Hubble Space Telescope on 20 December 2001. NGC 5257/8 (Arp 240) is an astonishing galaxy pair, composed of spiral galaxies of similar mass and size, NGC 5257 and NGC 5258. The galaxies are visibly interacting with each other via a bridge of dim stars connecting the two galaxies, almost like two dancers holding hands while performing a pirouette. Both galaxies harbor supermassive black holes in their centers and are actively forming new stars in their disks. Arp 240 is located in the constellation Virgo, approximately 300 million light - years away, and is the 240th galaxy in ARP's Atlas of Peculiar Galaxies. With the e

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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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Martian dunes in summer - Mars: Summer view of Dunes: Detail on dunes near the northern polar cap of Mars in summer. Image obtained by the HIRISE camera of the Mars Reconnaissance probe orbiter on 1 September 2008. HIRISE is a 50 cm telescope that observes visible and near infrared. This dune field formed near the base of the North Polar cap. Dunes require a source of loose particulate material to form. The source of the northern dune fields around the polar cap may be from the layers of dusty ice that are eroded by strong polar winds. This image was taken during the Martian northern summer, so there is no frost present on the dunes. The dunes closest to the base of the polar cap are long and parallel, indicating strong winds from the direction of the cap. As they get farther away from the polar cap, they start to form more crescent shaped dunes, called barchan dunes. Repeated observations by HiRise of dunes like these show measurable changes in some locations. This discovery adds to t

Martian dunes in summer - Mars: Summer view of Dunes: Detail on dunes near the northern polar cap of Mars in summer. Image obtained by the HIRISE camera of the Mars Reconnaissance probe orbiter on 1 September 2008. HIRISE is a 50 cm telescope that observes visible and near infrared. This dune field formed near the base of the North Polar cap. Dunes require a source of loose particulate material to form. The source of the northern dune fields around the polar cap may be from the layers of dusty ice that are eroded by strong polar winds. This image was taken during the Martian northern summer, so there is no frost present on the dunes. The dunes closest to the base of the polar cap are long and parallel, indicating strong winds from the direction of the cap. As they get farther away from the polar cap, they start to form more crescent shaped dunes, called barchan dunes. Repeated observations by HiRise of dunes like these show measurable changes in some locations. This discovery adds to t

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Saturn seen in infrared by Cassini spacecraft - Saturn seen in infrared by Cassini spacecraft - Composite image of Saturn in false colours obtained from infrared observations collected by the Cassini probe on 24 February 2007 at a distance of 1.58 million km from the planet. Flying over the unlit side of Saturn's rings, the Cassini spacecraft captures Saturn's glow, represented in brilliant shades of electric blue, sapphire and mint green, while the planet's shadow casts a wide net on the rings. This striking false - color mosaic was created from 25 images taken by Cassini's visual and infrared mapping spectrometer over a period of 13 hours, and captures Saturn in nighttime and daytime conditions. The visual and infrared mapping spectrometer acquires data simultaneously at 352 different wavelengths, or spectral channels. Data at wavelengths of 2.3, 3.0 and 5.1 microns were combined in the blue, green and red channels of a standard color image, respectively, to make this false - color m

Saturn seen in infrared by Cassini spacecraft - Saturn seen in infrared by Cassini spacecraft - Composite image of Saturn in false colours obtained from infrared observations collected by the Cassini probe on 24 February 2007 at a distance of 1.58 million km from the planet. Flying over the unlit side of Saturn's rings, the Cassini spacecraft captures Saturn's glow, represented in brilliant shades of electric blue, sapphire and mint green, while the planet's shadow casts a wide net on the rings. This striking false - color mosaic was created from 25 images taken by Cassini's visual and infrared mapping spectrometer over a period of 13 hours, and captures Saturn in nighttime and daytime conditions. The visual and infrared mapping spectrometer acquires data simultaneously at 352 different wavelengths, or spectral channels. Data at wavelengths of 2.3, 3.0 and 5.1 microns were combined in the blue, green and red channels of a standard color image, respectively, to make this false - color m

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Saturn rings seen in ultraviolet by Cassini - Saturn's rings in utraviolet - Saturn rings seen in ultraviolet by the Cassini probe. The colours indicate a different distribution of the material within the rings. This false - color image of Saturn's main rings was made by combining data from multiple star occultations using the Cassini ultraviolet imaging spectrograph. During occultations, scientists observe the brightness of a star as the rings pass in front of the star. This provides a measurement of the amount of ring material between the spacecraft and the star. Cassini has given scientists the most detailed view yet of Saturn's densely packed B ring. Cassini found that this part of the rings is densely packed with clumps, called self - gravity wakes, separated by almost empty gaps. These clumps in Saturn's B ring are neatly organized and constantly colliding, which surprised scientists. The clumps in Saturn's B ring, 30 to 50 meters (100 to 160 feet) across, are too small to be see

Saturn rings seen in ultraviolet by Cassini - Saturn's rings in utraviolet - Saturn rings seen in ultraviolet by the Cassini probe. The colours indicate a different distribution of the material within the rings. This false - color image of Saturn's main rings was made by combining data from multiple star occultations using the Cassini ultraviolet imaging spectrograph. During occultations, scientists observe the brightness of a star as the rings pass in front of the star. This provides a measurement of the amount of ring material between the spacecraft and the star. Cassini has given scientists the most detailed view yet of Saturn's densely packed B ring. Cassini found that this part of the rings is densely packed with clumps, called self - gravity wakes, separated by almost empty gaps. These clumps in Saturn's B ring are neatly organized and constantly colliding, which surprised scientists. The clumps in Saturn's B ring, 30 to 50 meters (100 to 160 feet) across, are too small to be see

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Martian dunes in Spring - March: Spring view of Dunes - Detail on sand dunes near the north pole of Mars. These dunes are covered with carbon dioxide gel during the Martian winter. In spring, dark streaks appear, sand flows caused by the degel. Image obtained by the HIRISE camera of the Mars Reconnaissance probe orbiter on April 7, 2008. HIRISE is a 50 cm telescope that observes visible and near infrared. Falling Material Kicks Up Cloud of Dust on Dunes. There is a vast region of sand dunes at high northern latitudes on Mars. In the winter, a layer of carbon dioxide ice covers the dunes, and in the spring as the sun warms the ice it evaporates. This is a very active process, and sand dislodged from the crests of the dunes cascades down, forming dark streaks. In thid image falling material has kicked up a small cloud of dust. The color of the ice surrounding adjacent streaks of material suggests that dust has settled on the ice at the bottom after similar events. Also discernible in thi

Martian dunes in Spring - March: Spring view of Dunes - Detail on sand dunes near the north pole of Mars. These dunes are covered with carbon dioxide gel during the Martian winter. In spring, dark streaks appear, sand flows caused by the degel. Image obtained by the HIRISE camera of the Mars Reconnaissance probe orbiter on April 7, 2008. HIRISE is a 50 cm telescope that observes visible and near infrared. Falling Material Kicks Up Cloud of Dust on Dunes. There is a vast region of sand dunes at high northern latitudes on Mars. In the winter, a layer of carbon dioxide ice covers the dunes, and in the spring as the sun warms the ice it evaporates. This is a very active process, and sand dislodged from the crests of the dunes cascades down, forming dark streaks. In thid image falling material has kicked up a small cloud of dust. The color of the ice surrounding adjacent streaks of material suggests that dust has settled on the ice at the bottom after similar events. Also discernible in thi

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Martian dunes in Spring - March: Frost - covered dunes in crater - Detail on dunes in a crater located near the north pole of Mars. Clearly, areas covered with carbon dioxide gel appear on this image obtained by the HIRISE camera of the Mars Reconnaissance probe orbiter on January 1, 2010. HIRISE is a 50 cm telescope that observes visible and near infrared Dunes are often found on crater floors. In the winter time at high northern latitudes the terrain is covered by carbon dioxide ice (dry ice). In the spring as this seasonal ice evaporates many unusual features unique to Mars are visible. On the floor of this crater where there are no dunes, the ice forms an uninterrupted layer. On the dunes however, dark streaks form as surface material from below the ice is mobilized and deposited on top of the ice. In some cases this mobile material probably slides down the steep face of the dune, while in other cases it may be literally blown out in a process of gas release similar to removing a c

Martian dunes in Spring - March: Frost - covered dunes in crater - Detail on dunes in a crater located near the north pole of Mars. Clearly, areas covered with carbon dioxide gel appear on this image obtained by the HIRISE camera of the Mars Reconnaissance probe orbiter on January 1, 2010. HIRISE is a 50 cm telescope that observes visible and near infrared Dunes are often found on crater floors. In the winter time at high northern latitudes the terrain is covered by carbon dioxide ice (dry ice). In the spring as this seasonal ice evaporates many unusual features unique to Mars are visible. On the floor of this crater where there are no dunes, the ice forms an uninterrupted layer. On the dunes however, dark streaks form as surface material from below the ice is mobilized and deposited on top of the ice. In some cases this mobile material probably slides down the steep face of the dune, while in other cases it may be literally blown out in a process of gas release similar to removing a c

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The coldest place on Mars - Coolest place on Mars: Detail of the ice cap of the southern pole of Mars, composed mainly of carbon dioxide. This dry ice accumulates on the surface mainly in winter, the temperature of this area can sometimes drop to 130 degrees Celsius below zero. Image obtained on August 29, 2016 by the HIRISE camera on board the Mars Reconnaissance orbiter probe. HIRISE is a 50 cm telescope that observes visible and near infrared. The polar cap is made from carbon dioxide (dry ice), which does not occur naturally on the Earth. The circular pits are holes in this dry ice layer that expand by a few meters each Martian year. New dry ice is constantly being added to this landscape by freezing directly out of the carbon dioxide atmosphere or falling as snow. Freezing out the atmosphere like this limits how cold the surface can get to the frost point at -130 degrees Celsius (-200 F). Nowhere on Mars can ever get any colder this, making this coolest landscape on Earth and Mars

The coldest place on Mars - Coolest place on Mars: Detail of the ice cap of the southern pole of Mars, composed mainly of carbon dioxide. This dry ice accumulates on the surface mainly in winter, the temperature of this area can sometimes drop to 130 degrees Celsius below zero. Image obtained on August 29, 2016 by the HIRISE camera on board the Mars Reconnaissance orbiter probe. HIRISE is a 50 cm telescope that observes visible and near infrared. The polar cap is made from carbon dioxide (dry ice), which does not occur naturally on the Earth. The circular pits are holes in this dry ice layer that expand by a few meters each Martian year. New dry ice is constantly being added to this landscape by freezing directly out of the carbon dioxide atmosphere or falling as snow. Freezing out the atmosphere like this limits how cold the surface can get to the frost point at -130 degrees Celsius (-200 F). Nowhere on Mars can ever get any colder this, making this coolest landscape on Earth and Mars

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Mars: Tooting crater - View of the Tooting impact crater obtained by the Mars Odyssey probe. It is a “recent” impact crater (a few hundred thousand years) with a diameter of about 29 km

Mars: Tooting crater - View of the Tooting impact crater obtained by the Mars Odyssey probe. It is a “recent” impact crater (a few hundred thousand years) with a diameter of about 29 km

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