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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

PIX4611676

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

PIX4612202

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

PIX4612824

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

PIX4612360

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

PIX4609963

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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Elliptical galaxy NGC 1275 in Perseus

Elliptical galaxy NGC 1275 in Perseus

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Perseverance and Ingenuity - 2021 (photo)

Perseverance and Ingenuity - 2021 (photo)

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Colliding spiral galaxies NGC 2207 and IC 2163 - Colliding galaxies NGC 2207 and IC 2163 - The galaxies NGC 2207 (left) and IC 2163 (right) form a pair of colliding galaxies approximately 114 million light years away. Currently IC 2163 is moving away from NGC 2207, but it is likely that within several billion years these two galaxies will eventually merge into a single massive galaxy. Image obtained by the Hubble Space Telescope in 1998. The larger and more massive galaxy is cataloged as NGC 2207 (on the left in the Hubble Heritage image), and the smaller one on the right is IC 2163. Strong tidal forces from NGC 2207 have distorted the shape of IC 2163, flinging out stars and gas into long streamers stretching out a hundred thousand light - years towards the right - hand edge of the image. The calculations indicate that IC 2163 is swinging past NGC 2207 in a counterclockwise direction, having made its closest approach 40 million years ago. However, IC 2163 does not have sufficient ener

Colliding spiral galaxies NGC 2207 and IC 2163 - Colliding galaxies NGC 2207 and IC 2163 - The galaxies NGC 2207 (left) and IC 2163 (right) form a pair of colliding galaxies approximately 114 million light years away. Currently IC 2163 is moving away from NGC 2207, but it is likely that within several billion years these two galaxies will eventually merge into a single massive galaxy. Image obtained by the Hubble Space Telescope in 1998. The larger and more massive galaxy is cataloged as NGC 2207 (on the left in the Hubble Heritage image), and the smaller one on the right is IC 2163. Strong tidal forces from NGC 2207 have distorted the shape of IC 2163, flinging out stars and gas into long streamers stretching out a hundred thousand light - years towards the right - hand edge of the image. The calculations indicate that IC 2163 is swinging past NGC 2207 in a counterclockwise direction, having made its closest approach 40 million years ago. However, IC 2163 does not have sufficient ener

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Spiral galaxy of Sombrero M104 in the Virgin - The Sombrero galaxy (M104) in Virgo - The spiral galaxy M104 (NGC 4594, Sombrero galaxy) is located about 28 million years ago - light. Assembled 6 images obtained with the Hubble Space Telescope in May and June 2003. The “” Sombrero”” is located in the constellation Virgo. This magnificent galaxy is almost one - fifth the diameter of the full moon. The team used Hubble's Advanced Camera for Surveys to take six pictures of the galaxy and then stitched them together to create the final composite image. The photo reveals a myriad of stars in a pancake - shaped disk as well as a glowing central bulge of stars

Spiral galaxy of Sombrero M104 in the Virgin - The Sombrero galaxy (M104) in Virgo - The spiral galaxy M104 (NGC 4594, Sombrero galaxy) is located about 28 million years ago - light. Assembled 6 images obtained with the Hubble Space Telescope in May and June 2003. The “” Sombrero”” is located in the constellation Virgo. This magnificent galaxy is almost one - fifth the diameter of the full moon. The team used Hubble's Advanced Camera for Surveys to take six pictures of the galaxy and then stitched them together to create the final composite image. The photo reveals a myriad of stars in a pancake - shaped disk as well as a glowing central bulge of stars

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The planet Saturn observed with the Hubble space telescope in October 1997. Saturn is 120,000 km in diameter -: The planet Saturn seen by the Hubble space telescope in 1997 - Saturn seen from the Hubble space telescope in october 1997

The planet Saturn observed with the Hubble space telescope in October 1997. Saturn is 120,000 km in diameter -: The planet Saturn seen by the Hubble space telescope in 1997 - Saturn seen from the Hubble space telescope in october 1997

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Detail of the nebula NGC 3372 in the Carene - Eta Carinae nebula detail - Detail of the nebula NGC 3372 near the star Eta Carinae (off field). Region of star formation. Image obtained by the Hubble Space Telescope in April 1999. The Hubble Space Telescope image reveals complex structure in the Carina Nebula (NGC 3372). The picture is dominated by a large, approximately circular feature, which is part of the Keyhole Nebula. This region, about 8000 light - years from Earth, is located adjacent to the famous explosive variable star Eta Carinae, which lies just outside the field of view towards the upper right. The Carina Nebula also contains several other stars that are among the hottest and most massive known, each about 10 times as hot, and 100 times as massive, as our Sun

Detail of the nebula NGC 3372 in the Carene - Eta Carinae nebula detail - Detail of the nebula NGC 3372 near the star Eta Carinae (off field). Region of star formation. Image obtained by the Hubble Space Telescope in April 1999. The Hubble Space Telescope image reveals complex structure in the Carina Nebula (NGC 3372). The picture is dominated by a large, approximately circular feature, which is part of the Keyhole Nebula. This region, about 8000 light - years from Earth, is located adjacent to the famous explosive variable star Eta Carinae, which lies just outside the field of view towards the upper right. The Carina Nebula also contains several other stars that are among the hottest and most massive known, each about 10 times as hot, and 100 times as massive, as our Sun

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American Phoenix probe tested at Lockheed Martin Space Systems - 09 - 200

American Phoenix probe tested at Lockheed Martin Space Systems - 09 - 200

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Center of the spiral galaxy M51 in Hunting Dogs - Spiral galaxy M51 in Canes Venatici - The spiral galaxy M51 (NGC 5194) is located about 31 million years away - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. This image obtained by the Hubble Space Telescope in 2005 shows the central region of NGC 5194 showing the star-forming zones in red. This image of the cenral area of M51 was taken with the Hubble space telescope in 2005. 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 (out of field). The reddish areas are nebulae in the galaxy in which stars are rapidly forming. M51 is approximately 31 million light years away and over 65,000 light years in diameter

Center of the spiral galaxy M51 in Hunting Dogs - Spiral galaxy M51 in Canes Venatici - The spiral galaxy M51 (NGC 5194) is located about 31 million years away - light from Earth. This galaxy is double; two galaxies interact: the largest, NGC 5194, the smallest NGC 5195. This image obtained by the Hubble Space Telescope in 2005 shows the central region of NGC 5194 showing the star-forming zones in red. This image of the cenral area of M51 was taken with the Hubble space telescope in 2005. 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 (out of field). The reddish areas are nebulae in the galaxy in which stars are rapidly forming. M51 is approximately 31 million light years away and over 65,000 light years in diameter

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central area of M51 taken in picture in 1999

central area of M51 taken in picture in 1999

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

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

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

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

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Spiral galaxy M81 in the Great Bear - Spiral galaxy M81 in Ursa Major: The spiral galaxy M81 is located 12 million light years from Earth. Its arms are home to star-forming regions while its core is surrounded by much older yellow stars. An irregular dwarf galaxy, PGC 28757 (Holmberg IX), is visible at the top of the picture. - M81 is the brightest member of the nearby galactic group called the M81 group. This group contains at least 25 other members including the peculiar starburst galaxy M82, the peculiar galaxy NGC 3077 and many dwarfs galaxies. The core galaxies of the group (M81, M82, NGC 3077, NGC 2976) are strongly interacting and are all imbedded within a large and extended molecular gas cloud. The Dwarf irregular Holmberg IX (seen above M81 in the image) most likely condensed from tidal debri existing between M81 and M82. M81 has the distinction of being the nearest spiral galaxy to have an active galactic nucleus (AGN). AGN galaxies are luminous galaxies that demonstrate much

Spiral galaxy M81 in the Great Bear - Spiral galaxy M81 in Ursa Major: The spiral galaxy M81 is located 12 million light years from Earth. Its arms are home to star-forming regions while its core is surrounded by much older yellow stars. An irregular dwarf galaxy, PGC 28757 (Holmberg IX), is visible at the top of the picture. - M81 is the brightest member of the nearby galactic group called the M81 group. This group contains at least 25 other members including the peculiar starburst galaxy M82, the peculiar galaxy NGC 3077 and many dwarfs galaxies. The core galaxies of the group (M81, M82, NGC 3077, NGC 2976) are strongly interacting and are all imbedded within a large and extended molecular gas cloud. The Dwarf irregular Holmberg IX (seen above M81 in the image) most likely condensed from tidal debri existing between M81 and M82. M81 has the distinction of being the nearest spiral galaxy to have an active galactic nucleus (AGN). AGN galaxies are luminous galaxies that demonstrate much

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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

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Elliptical Galaxy M60 in Virgo - Elliptical galaxy M60 in Virgo - Elliptical galaxy M60 (NGC 4649) located in the Virgo cluster of galaxies. At right is the spiral galaxy NGC 4647. The peculiar galaxy pair is called Arp 116. The faint bluish spiral galaxy NGC 4647 is about two - thirds of M60 in size and much lower in mass - - roughly the size of our galaxy, the Milky Way. M60 lies roughly 54 million light - years away from Earth; NGC 4647 is about 63 million light - years away. M60 is the third brightest galaxy in the Virgo cluster of galaxies, a collection of more than 1,300 galaxies. M60 has a diameter of 120,000 light - years, and a mass of about one trillion times that of the Sun. A huge black hole of 4.5 billion solar masses lies at its center, one of the most massive black holes ever found. This image combines exposures from Hubble's Advanced Camera for Surveys and Wide Field and Planetary Camera 2

Elliptical Galaxy M60 in Virgo - Elliptical galaxy M60 in Virgo - Elliptical galaxy M60 (NGC 4649) located in the Virgo cluster of galaxies. At right is the spiral galaxy NGC 4647. The peculiar galaxy pair is called Arp 116. The faint bluish spiral galaxy NGC 4647 is about two - thirds of M60 in size and much lower in mass - - roughly the size of our galaxy, the Milky Way. M60 lies roughly 54 million light - years away from Earth; NGC 4647 is about 63 million light - years away. M60 is the third brightest galaxy in the Virgo cluster of galaxies, a collection of more than 1,300 galaxies. M60 has a diameter of 120,000 light - years, and a mass of about one trillion times that of the Sun. A huge black hole of 4.5 billion solar masses lies at its center, one of the most massive black holes ever found. This image combines exposures from Hubble's Advanced Camera for Surveys and Wide Field and Planetary Camera 2

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Center of the Trifid Nebula (M20) - Center of the Trifid Nebula - The Trifid Nebula (M20) is located between 5000 and 10,000 years - light of the Earth in the constellation of Sagittarius. This image obtained by the Hubble space telescope shows the center of this nebula. A group of bright stars is visible in the center of the image near the dark bands of interstellar dust. These stars are young, blue, massive and extremely hot stars; they are O-type stars and the radiation they emit influence the evolution and structure of the nebula. Trifid Nebula, also known as Messier 20 and NGC 6514, lies within our own Milky Way Galaxy between 5000 and 10 000 light - years from Earth, in the constellation Sagittarius. This image from the Hubble Space Telescope offers a close - up view of the center of the Trifid Nebula, near the intersection of the dust bands, where a group of recently formed, massive, bright stars is easily visible. These stars, which astronomers classify as belonging to the hott

Center of the Trifid Nebula (M20) - Center of the Trifid Nebula - The Trifid Nebula (M20) is located between 5000 and 10,000 years - light of the Earth in the constellation of Sagittarius. This image obtained by the Hubble space telescope shows the center of this nebula. A group of bright stars is visible in the center of the image near the dark bands of interstellar dust. These stars are young, blue, massive and extremely hot stars; they are O-type stars and the radiation they emit influence the evolution and structure of the nebula. Trifid Nebula, also known as Messier 20 and NGC 6514, lies within our own Milky Way Galaxy between 5000 and 10 000 light - years from Earth, in the constellation Sagittarius. This image from the Hubble Space Telescope offers a close - up view of the center of the Trifid Nebula, near the intersection of the dust bands, where a group of recently formed, massive, bright stars is easily visible. These stars, which astronomers classify as belonging to the hott

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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. On the top image, 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 Saturn's left blade, on the left, above the rings, Dione is clearly visible, and on the left, the Enceladus satellite. The image in the center shows the satellites Enceladus and Dione that cast their shadow on the west (left) side of Saturn, Titan in the upper right, and Mimas on the eastern edge of Saturn. In the image below, Dione and his shadow pass to the center of Saturn, above Enceladus and its shadow. Titan is on Saturn's eastern blade, Mimas is right above the rings. This sequence of images captures the parade of several of Saturn's moons trans

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. On the top image, 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 Saturn's left blade, on the left, above the rings, Dione is clearly visible, and on the left, the Enceladus satellite. The image in the center shows the satellites Enceladus and Dione that cast their shadow on the west (left) side of Saturn, Titan in the upper right, and Mimas on the eastern edge of Saturn. In the image below, Dione and his shadow pass to the center of Saturn, above Enceladus and its shadow. Titan is on Saturn's eastern blade, Mimas is right above the rings. This sequence of images captures the parade of several of Saturn's moons trans

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Nebula N90 in the Little Magellan Cloud - Nebula N90 in the Little Magellan Cloud - View of nebula N90 in the Little Magellan Cloud, a galaxy next to our located 200,000 years - light from Earth. At the heart of this star-forming region is the cluster of stars NGC 602. These young stars have emerge from their cocoon of gas blowing the surrounding matter; the gas pillars pointing towards these stars are a sign of this erosion. In the dark clouds, other stars are forming. In the background, many galaxies are visible. Composite images obtained by the Hubble Space Telescope in July 2004

Nebula N90 in the Little Magellan Cloud - Nebula N90 in the Little Magellan Cloud - View of nebula N90 in the Little Magellan Cloud, a galaxy next to our located 200,000 years - light from Earth. At the heart of this star-forming region is the cluster of stars NGC 602. These young stars have emerge from their cocoon of gas blowing the surrounding matter; the gas pillars pointing towards these stars are a sign of this erosion. In the dark clouds, other stars are forming. In the background, many galaxies are visible. Composite images obtained by the Hubble Space Telescope in July 2004

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Nebula Sh2 - 106 in the Swan - Sh2 - 106 nebula in Cygnus - Sharpless 106 (Sh2 - 106) is a star-forming region in the constellation Swan. Image obtained by the Hubble Space Telescope (HST). The bipolar star - forming region, called Sharpless 2 - 106, or S106 for short, looks like a soaring, celestial snow angel. The outstretched “” wings”” of the nebula record the contrasting imprint of heat and motion against the backdrop of a colder medium. Twin lobes of super - hot gas, glowing blue in this image, stretch outward from the central star. This hot gas creates the “” wings”” of our angel. A ring of dust and gas orbiting the star acts like a belt, cinching the expanding nebula into an “” hourglass”” shape

Nebula Sh2 - 106 in the Swan - Sh2 - 106 nebula in Cygnus - Sharpless 106 (Sh2 - 106) is a star-forming region in the constellation Swan. Image obtained by the Hubble Space Telescope (HST). The bipolar star - forming region, called Sharpless 2 - 106, or S106 for short, looks like a soaring, celestial snow angel. The outstretched “” wings”” of the nebula record the contrasting imprint of heat and motion against the backdrop of a colder medium. Twin lobes of super - hot gas, glowing blue in this image, stretch outward from the central star. This hot gas creates the “” wings”” of our angel. A ring of dust and gas orbiting the star acts like a belt, cinching the expanding nebula into an “” hourglass”” shape

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Collision galaxy NGC 520 - Galaxy NGC 520 in Pisces - The galaxy NGC 520, is about 100 million light years away from Earth in the constellation Pisces. This system consists of two colliding galaxies. The merger started 300 million years ago. The two galaxies are only in the middle of this process, their disk having merged but not yet their kernel. NGC 520 is among the brightest pairs of galaxies, and is visible with a small telescope. Image obtained by the Hubble Space Telescope on October 22, 2004. NGC 520 is the product of a collision between two disk galaxies that started 300 million years ago. It examplifies the middle stages of the merging process: the disks of the parent galaxies have merged together, but the nuclei have not yet coalesced. It features an odd - looking tail of stars and a prominent dust lane that runs diagonally across the center of the image and obscures the galaxy. NGC 520 is one of the brightest galaxy pairs on the sky, and can be observed with a small telescop

Collision galaxy NGC 520 - Galaxy NGC 520 in Pisces - The galaxy NGC 520, is about 100 million light years away from Earth in the constellation Pisces. This system consists of two colliding galaxies. The merger started 300 million years ago. The two galaxies are only in the middle of this process, their disk having merged but not yet their kernel. NGC 520 is among the brightest pairs of galaxies, and is visible with a small telescope. Image obtained by the Hubble Space Telescope on October 22, 2004. NGC 520 is the product of a collision between two disk galaxies that started 300 million years ago. It examplifies the middle stages of the merging process: the disks of the parent galaxies have merged together, but the nuclei have not yet coalesced. It features an odd - looking tail of stars and a prominent dust lane that runs diagonally across the center of the image and obscures the galaxy. NGC 520 is one of the brightest galaxy pairs on the sky, and can be observed with a small telescop

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Interacting Galaxies Arp 299 - Interacting galaxies Arp 299 - The particular galaxy Arp 299 is located about 150 million light years away from Earth in the constellation of the Great Bear. Composed of galaxies IC 694 and NGC 3690, this interacting system presents important star formations. Astronomers also observed the appearance of several supernovae. Arp 299 is an ultra-aluminous infrared galaxy. Image obtained by the Hubble Space Telescope on 18 March 2002. This system consists of a pair of galaxies, dubbed IC 694 and NGC 3690, which made a close pass some 700 million years ago. As a result of this interaction, the system underwent a fierce burst of star formation. In the last fifteen years or so six supernovae have popped off in the outer reaches of the galaxy, making this system a distinguished supernova factory. Arp 299 belongs to the family of ultra - luminous infrared galaxies and is located in the constellation of Ursa Major, the Great Bear, approximately 150 million light - y

Interacting Galaxies Arp 299 - Interacting galaxies Arp 299 - The particular galaxy Arp 299 is located about 150 million light years away from Earth in the constellation of the Great Bear. Composed of galaxies IC 694 and NGC 3690, this interacting system presents important star formations. Astronomers also observed the appearance of several supernovae. Arp 299 is an ultra-aluminous infrared galaxy. Image obtained by the Hubble Space Telescope on 18 March 2002. This system consists of a pair of galaxies, dubbed IC 694 and NGC 3690, which made a close pass some 700 million years ago. As a result of this interaction, the system underwent a fierce burst of star formation. In the last fifteen years or so six supernovae have popped off in the outer reaches of the galaxy, making this system a distinguished supernova factory. Arp 299 belongs to the family of ultra - luminous infrared galaxies and is located in the constellation of Ursa Major, the Great Bear, approximately 150 million light - y

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

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

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Field around the group of galaxies HCG 90 - Wide field around group of galaxies HCG 90 - Region around the galaxy cluster calls Hickson Compact Group 90 (HCG 90), in the constellation Austral Poisson. A wide - field image of the region around the group of galaxies HCG 90 constructed from the images in the Digitized Sky Survey. The field - of - view is approximately 3.7 x 3.8 degrees

Field around the group of galaxies HCG 90 - Wide field around group of galaxies HCG 90 - Region around the galaxy cluster calls Hickson Compact Group 90 (HCG 90), in the constellation Austral Poisson. A wide - field image of the region around the group of galaxies HCG 90 constructed from the images in the Digitized Sky Survey. The field - of - view is approximately 3.7 x 3.8 degrees

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Galaxy ESO 69 - 6 - Galaxy ESO 69 - 6 - The galaxy ESO 69 - 6 is about 650 million light years away from Earth in the constellation of the Southern Triangle. This system consists of two interacting galaxies. Image obtained by the Hubble Space Telescope on April 8, 2002. ESO 69 - 6 is an interacting pair of galaxies located in the constellation of Triangulum Australe, the Southern Triangle, about 650 million light - years away from Earth. Long tidal tails sweep out from the two galaxies: gas and stars were stripped out and torn away from the outer regions of the galaxies. The presence of these tails is the unique signature of an interaction. Image taken by the Hubble space telescope on April 8, 2002

Galaxy ESO 69 - 6 - Galaxy ESO 69 - 6 - The galaxy ESO 69 - 6 is about 650 million light years away from Earth in the constellation of the Southern Triangle. This system consists of two interacting galaxies. Image obtained by the Hubble Space Telescope on April 8, 2002. ESO 69 - 6 is an interacting pair of galaxies located in the constellation of Triangulum Australe, the Southern Triangle, about 650 million light - years away from Earth. Long tidal tails sweep out from the two galaxies: gas and stars were stripped out and torn away from the outer regions of the galaxies. The presence of these tails is the unique signature of an interaction. Image taken by the Hubble space telescope on April 8, 2002

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Spiral galaxy NGC 5584 - Spiral galaxy NGC 5584 - NGC 5584 is located 72 million light years from Earth in the constellation Virgin. This galaxy is home to many Cepheides, variable stars used to accurately measure distances in the universe and calculate the rate of expansion of the universe. Image obtained by the Hubble Space Telescope. The brilliant, blue glow of young stars traces the graceful spiral arms of galaxy NGC 5584 in this Hubble Space Telescope image. Thin, dark dust lanes appear to be flowing from the yellowish core, where older stars reside. The reddish dots sprinkled throughout the image are largely background galaxies. Among the galaxy's myriad stars are pulsating stars called Cepheid variables and one recent Type Ia supernova, a special class of exploding stars. Astronomers use Cepheid variables and Type Ia supernovae as reliable distance markers to measure the university's expansion rate. NGC 5584 was one of eight galaxies astronomers studied to measure the university

Spiral galaxy NGC 5584 - Spiral galaxy NGC 5584 - NGC 5584 is located 72 million light years from Earth in the constellation Virgin. This galaxy is home to many Cepheides, variable stars used to accurately measure distances in the universe and calculate the rate of expansion of the universe. Image obtained by the Hubble Space Telescope. The brilliant, blue glow of young stars traces the graceful spiral arms of galaxy NGC 5584 in this Hubble Space Telescope image. Thin, dark dust lanes appear to be flowing from the yellowish core, where older stars reside. The reddish dots sprinkled throughout the image are largely background galaxies. Among the galaxy's myriad stars are pulsating stars called Cepheid variables and one recent Type Ia supernova, a special class of exploding stars. Astronomers use Cepheid variables and Type Ia supernovae as reliable distance markers to measure the university's expansion rate. NGC 5584 was one of eight galaxies astronomers studied to measure the university

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Galaxy ESO 99 - 4 - Galaxy ESO 99 - 4 - The special galaxy ESO 99 - 4 is about 400 million light years away from Earth in the constellation of the Southern Triangle. Its tormented shape suggests that it has absorbed another galaxy. Image obtained by the Hubble Space Telescope on April 13, 2002. ESO 99 - 4 is a galaxy with a highly peculiar shape that is probably the remnant of an earlier merger process that has deformed it beyond visual recognition, leaving the main body largely obscured by dark bands of dust. ESO 99 - 4 lies in a rich field of foreground stars, in the constellation of Triangulum Australe, the Southern Triangle, about 400 million light - years away. Image taken by the Hubble space telescope on April 13, 2002

Galaxy ESO 99 - 4 - Galaxy ESO 99 - 4 - The special galaxy ESO 99 - 4 is about 400 million light years away from Earth in the constellation of the Southern Triangle. Its tormented shape suggests that it has absorbed another galaxy. Image obtained by the Hubble Space Telescope on April 13, 2002. ESO 99 - 4 is a galaxy with a highly peculiar shape that is probably the remnant of an earlier merger process that has deformed it beyond visual recognition, leaving the main body largely obscured by dark bands of dust. ESO 99 - 4 lies in a rich field of foreground stars, in the constellation of Triangulum Australe, the Southern Triangle, about 400 million light - years away. Image taken by the Hubble space telescope on April 13, 2002

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

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

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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 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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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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Spiral galaxy M33 infrared view - Spiral galaxy M33 seen in infrared - M33, (NGC 598), the galaxy of the Triangle, is located about 2.9 million years ago - light from Earth. It belongs to the local group, just like our galaxy or Andromede galaxy. This infrared image from the Spitzer space telescope shows stars in blue, gas in green, star formations in red - orange. Red dots are distant galaxies. In infrared, the galaxy appears larger than visible light, revealing cold gas and dust that spread around the galaxy. Also known as M33 or NGC 598, the Triangulum Galaxy is part of the Local Group of galaxies, which includes the Andromeda Galaxy (M31) and our galaxy, the Milky Way. M33 is over thirty thousand light - years across, and more than two million light - years away. Viewed here with Spitzer's infrared eyes, this elegant spiral galaxy sparkles with color and detail. Stars appear as glistening blue gems (several of which are actually foreground stars in our own galaxy), while dust rich

Spiral galaxy M33 infrared view - Spiral galaxy M33 seen in infrared - M33, (NGC 598), the galaxy of the Triangle, is located about 2.9 million years ago - light from Earth. It belongs to the local group, just like our galaxy or Andromede galaxy. This infrared image from the Spitzer space telescope shows stars in blue, gas in green, star formations in red - orange. Red dots are distant galaxies. In infrared, the galaxy appears larger than visible light, revealing cold gas and dust that spread around the galaxy. Also known as M33 or NGC 598, the Triangulum Galaxy is part of the Local Group of galaxies, which includes the Andromeda Galaxy (M31) and our galaxy, the Milky Way. M33 is over thirty thousand light - years across, and more than two million light - years away. Viewed here with Spitzer's infrared eyes, this elegant spiral galaxy sparkles with color and detail. Stars appear as glistening blue gems (several of which are actually foreground stars in our own galaxy), while dust rich

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Martian dunes in winter - March: Winter view of Dunes - Detail on dunes in a crater located in the southern hemisphere of Mars. Clearly, areas covered with gel appear on this image obtained by the HIRISE camera of the Mars Reconnaissance probe orbiter on November 25, 2006. HIRISE is a 50 cm telescope that observes visible and near infrared. Dunes within a crater on Mars are visible in this HiRise image. This crater is located in the southern hemisphere where it was winter at the time this image was taken on November 25, 2006. This observation documents new seasonal processes occurring on dunes at this latitude, as well as other interesting phenomena. The bright tones are interpreted as carbon dioxide or water frost. This is generally concentrated on the east - facing slopes of the dunes, which are in shadow and therefore cooler. Some dark spots on the dunes may be areas that have defrosted more than surrounding terrain. Landslides and dark - toned streaks are seen on many of the west -

Martian dunes in winter - March: Winter view of Dunes - Detail on dunes in a crater located in the southern hemisphere of Mars. Clearly, areas covered with gel appear on this image obtained by the HIRISE camera of the Mars Reconnaissance probe orbiter on November 25, 2006. HIRISE is a 50 cm telescope that observes visible and near infrared. Dunes within a crater on Mars are visible in this HiRise image. This crater is located in the southern hemisphere where it was winter at the time this image was taken on November 25, 2006. This observation documents new seasonal processes occurring on dunes at this latitude, as well as other interesting phenomena. The bright tones are interpreted as carbon dioxide or water frost. This is generally concentrated on the east - facing slopes of the dunes, which are in shadow and therefore cooler. Some dark spots on the dunes may be areas that have defrosted more than surrounding terrain. Landslides and dark - toned streaks are seen on many of the west -

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Dunes near the north pole on Mars - Dunes at North Polar Cap on Mars: Image obtained on March 26, 2014 by the HIRISE camera on board the Mars Reconnaissance orbiter probe. HIRISE is a 50 cm telescope that observes visible and near infrared. Formative down-slope winds descending on Mars' North Polar ice cap likely play an important role in transporting sediment from the base of the ice cap into the dune fields that sit beyond the ice cap. The deep chasm that formed on the polar cap edge is identified as an area of strong down-slope winds and has a clear connection to Mars' largest dune field, Olympia Undae. Repeat HiRise images from this chasm that specifically targets the dunes, provides the basis to evaluate the sand fluxes which are associated with the dune and ripple movement in this area

Dunes near the north pole on Mars - Dunes at North Polar Cap on Mars: Image obtained on March 26, 2014 by the HIRISE camera on board the Mars Reconnaissance orbiter probe. HIRISE is a 50 cm telescope that observes visible and near infrared. Formative down-slope winds descending on Mars' North Polar ice cap likely play an important role in transporting sediment from the base of the ice cap into the dune fields that sit beyond the ice cap. The deep chasm that formed on the polar cap edge is identified as an area of strong down-slope winds and has a clear connection to Mars' largest dune field, Olympia Undae. Repeat HiRise images from this chasm that specifically targets the dunes, provides the basis to evaluate the sand fluxes which are associated with the dune and ripple movement in this area

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Mars: dunes and ice in Chasma Boreale - Mars: dunes and ice in Chasma Boreale - Chasma Boreale is a huge canyon located in the northern polar cap of Mars. This image, obtained in light visible by the probe 2001 Mars Odyssey, shows Tenuis Cavus, the end of this valley or the canyon is only 35 km wide. The cliffs s'elevent 1400 meters above ground. The walls are covered with ice, while at the bottom of the bowl many sand dunes are present. 3D recomposed view, vertical exaggeration: 2.5 times. Chasma Boreale is a huge canyon in the northern polar cap. It runs into the ice cap for 570 kilometers (350 miles), making a broad valley that ends at a point called Tenuis Cavus, shown in this THEMIS image taken at visible wavelengths.tapering from a width of 120 km (75 miles) at its mouth, Chasma Boreale is only about 35 km (22 miles) wide here. The cliffs rise about 1,400 meters (4,600 feet) above the base. On the inside walls of this gigantic amphitheater are stacked layers of ice, while on its

Mars: dunes and ice in Chasma Boreale - Mars: dunes and ice in Chasma Boreale - Chasma Boreale is a huge canyon located in the northern polar cap of Mars. This image, obtained in light visible by the probe 2001 Mars Odyssey, shows Tenuis Cavus, the end of this valley or the canyon is only 35 km wide. The cliffs s'elevent 1400 meters above ground. The walls are covered with ice, while at the bottom of the bowl many sand dunes are present. 3D recomposed view, vertical exaggeration: 2.5 times. Chasma Boreale is a huge canyon in the northern polar cap. It runs into the ice cap for 570 kilometers (350 miles), making a broad valley that ends at a point called Tenuis Cavus, shown in this THEMIS image taken at visible wavelengths.tapering from a width of 120 km (75 miles) at its mouth, Chasma Boreale is only about 35 km (22 miles) wide here. The cliffs rise about 1,400 meters (4,600 feet) above the base. On the inside walls of this gigantic amphitheater are stacked layers of ice, while on its

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Mars: dunes and ice in Chasma Boreale - Mars: dunes and ice in Chasma Boreale - Chasma Boreale is a huge canyon located in the northern polar cap of Mars. This image, obtained in light visible by the probe 2001 Mars Odyssey, shows Tenuis Cavus, the end of this valley or the canyon is only 35 km wide. The cliffs to the north (top) and to the east (right) s'elevent 1400 meters above ground. The walls are covered with ice, while at the bottom of the bowl many sand dunes are present. Chasma Boreale is a huge canyon in the northern polar cap. It runs into the ice cap for 570 kilometers (350 miles), making a broad valley that ends at a point called Tenuis Cavus, shown in this THEMIS image taken at visible wavelengths.tapering from a width of 120 km (75 miles) at its mouth, Chasma Boreale is only about 35 km (22 miles) wide here. The cliffs on the northern (top) and eastern (right) sides of the image rise about 1,400 meters (4,600 feet) above the base. On the inside walls of this gigantic amp

Mars: dunes and ice in Chasma Boreale - Mars: dunes and ice in Chasma Boreale - Chasma Boreale is a huge canyon located in the northern polar cap of Mars. This image, obtained in light visible by the probe 2001 Mars Odyssey, shows Tenuis Cavus, the end of this valley or the canyon is only 35 km wide. The cliffs to the north (top) and to the east (right) s'elevent 1400 meters above ground. The walls are covered with ice, while at the bottom of the bowl many sand dunes are present. Chasma Boreale is a huge canyon in the northern polar cap. It runs into the ice cap for 570 kilometers (350 miles), making a broad valley that ends at a point called Tenuis Cavus, shown in this THEMIS image taken at visible wavelengths.tapering from a width of 120 km (75 miles) at its mouth, Chasma Boreale is only about 35 km (22 miles) wide here. The cliffs on the northern (top) and eastern (right) sides of the image rise about 1,400 meters (4,600 feet) above the base. On the inside walls of this gigantic amp

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Galaxies M81 and M82 in the Big Dipper, 2022 (photograph)

Galaxies M81 and M82 in the Big Dipper, 2022 (photograph)

R. Gendler

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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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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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Centaur Omega globular cluster - NGC 5139 Omega Centauri globular cluster - Visible to the naked eye in the southern hemisphere, Centaurus Omega is the most massive globular cluster in the galaxy. About 17,000 light years ago, millions of stars nearly 12 billion years old are concentrated here. This image obtained by the Spitzer space telescope reveals in yellow and red the big red stars, whose dust radiates infrared, and in blue the smaller and less evoluted stars. Omega Centauri is the biggest and brightest of the more than 150 similar objects, called globular clusters, that orbit around the outside of our Milky Way galaxy. Stargazers at southern latitudes can spot the stellar gem with the naked eye in the constellation Centaurus. While the visible - light observations highlight the cluster's millions of jam - packed stars, Spitzer's infrared eyes reveal the dustier, more evolved stars tossed throughout the region. Globular clusters are some of the oldest objects in our universe. The

Centaur Omega globular cluster - NGC 5139 Omega Centauri globular cluster - Visible to the naked eye in the southern hemisphere, Centaurus Omega is the most massive globular cluster in the galaxy. About 17,000 light years ago, millions of stars nearly 12 billion years old are concentrated here. This image obtained by the Spitzer space telescope reveals in yellow and red the big red stars, whose dust radiates infrared, and in blue the smaller and less evoluted stars. Omega Centauri is the biggest and brightest of the more than 150 similar objects, called globular clusters, that orbit around the outside of our Milky Way galaxy. Stargazers at southern latitudes can spot the stellar gem with the naked eye in the constellation Centaurus. While the visible - light observations highlight the cluster's millions of jam - packed stars, Spitzer's infrared eyes reveal the dustier, more evolved stars tossed throughout the region. Globular clusters are some of the oldest objects in our universe. The

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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

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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

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March - Satellite Phobos - Martian moon Phobos - View of the satellite Phobos obtained on March 23, 2008 at a distance of 5800 km from the satellite

March - Satellite Phobos - Martian moon Phobos - View of the satellite Phobos obtained on March 23, 2008 at a distance of 5800 km from the satellite

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Earth seen by satellite - Earth seen by satellite - Mosaic of Earth images obtained by the Suomi NPP satellite in January 2012. This composite image uses a number of swaths of the Earth's surface taken on January 4, 2012 by Suomi NPP satellite

Earth seen by satellite - Earth seen by satellite - Mosaic of Earth images obtained by the Suomi NPP satellite in January 2012. This composite image uses a number of swaths of the Earth's surface taken on January 4, 2012 by Suomi NPP satellite

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Earth seen by satellite - Earth seen by satellite - Mosaic of Earth images obtained by the Suomi NPP satellite in April 2015. On the right, cyclone Joalane passes over the Indian Ocean. This natural - color composite image of Earth was assembled from data acquired by the Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi National Polar - orbiting Partnership (Suomi - NPP) spacecraft. It stitches together 671, 551, and 443 nanometer wavelength data from six orbits on April 9, 2015. Suomi NPP does not actually observe Earth from the perspective shown in this image. The satellite flies in a polar orbit at an altitude of 824 kilometers (512 miles), and its images have a resolution of 750 meters per pixel. In the image, the virtual camera looks down from the perspective of 8,300 kilometers (5,100 miles) above a point at 50 degrees South latitude and 40 degrees East longitude. Most of the scene is filled by the Indian Ocean (center and left), while parcels of the Atlantic (top le

Earth seen by satellite - Earth seen by satellite - Mosaic of Earth images obtained by the Suomi NPP satellite in April 2015. On the right, cyclone Joalane passes over the Indian Ocean. This natural - color composite image of Earth was assembled from data acquired by the Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi National Polar - orbiting Partnership (Suomi - NPP) spacecraft. It stitches together 671, 551, and 443 nanometer wavelength data from six orbits on April 9, 2015. Suomi NPP does not actually observe Earth from the perspective shown in this image. The satellite flies in a polar orbit at an altitude of 824 kilometers (512 miles), and its images have a resolution of 750 meters per pixel. In the image, the virtual camera looks down from the perspective of 8,300 kilometers (5,100 miles) above a point at 50 degrees South latitude and 40 degrees East longitude. Most of the scene is filled by the Indian Ocean (center and left), while parcels of the Atlantic (top le

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Earth seen by satellite - Earth seen by satellite - Mosaic of Earth images obtained by the Suomi NPP satellite in January 2012. This composite image uses a number of swaths of the Earth's surface taken on January 23, 2012 by Suomi NPP satellite

Earth seen by satellite - Earth seen by satellite - Mosaic of Earth images obtained by the Suomi NPP satellite in January 2012. This composite image uses a number of swaths of the Earth's surface taken on January 23, 2012 by Suomi NPP satellite

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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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Mars: dunes and ice in Chasma Boreal, a huge canyon located in the northern polar cap of Mars, image obtained in light visible by the probe Mars Odyssey, 2001

Mars: dunes and ice in Chasma Boreal, a huge canyon located in the northern polar cap of Mars, image obtained in light visible by the probe Mars Odyssey, 2001

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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 image is a composite obtained in X-rays, radio and visible. Gas material is ejected from the heart of the galaxy. A supermassive black hole would have caused this jet. This image is a composite of visible (or optical), radio, and X - ray data of the giant elliptical galaxy, M87. M87 lies at a distance of 54 million light years and is the largest galaxy in the Virgo cluster of galaxies. Bright jets moving at close to the speed of light are seen at all wavelengths coming from the massive black hole at the center of the galaxy. It has also been identified with the strong radio source, Virgo A, and is a powerful source of X - rays as it resides near the center of a hot, X - ray emitting cloud that extends over much of the Virgo cluster. The extended radio emission consists of plumes of fast - moving gas from the j

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 image is a composite obtained in X-rays, radio and visible. Gas material is ejected from the heart of the galaxy. A supermassive black hole would have caused this jet. This image is a composite of visible (or optical), radio, and X - ray data of the giant elliptical galaxy, M87. M87 lies at a distance of 54 million light years and is the largest galaxy in the Virgo cluster of galaxies. Bright jets moving at close to the speed of light are seen at all wavelengths coming from the massive black hole at the center of the galaxy. It has also been identified with the strong radio source, Virgo A, and is a powerful source of X - rays as it resides near the center of a hot, X - ray emitting cloud that extends over much of the Virgo cluster. The extended radio emission consists of plumes of fast - moving gas from the j

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Ancient channels on Mars - Ancient channels on planet Mars. Ares Vallis - View of the area of Ares Vallis and Tiu Vallis obtained by the probe 2001 Mars Odyssey. This region seems to have been shaped by the passage of water. Channels scoured by ancient outbursts of flood waters are seen in this orbital view from Odyssey's Thermal Emission Imaging System.The channels are billions of years old and have likely been affected by multiple processes over time. Here, two channels, Tiu Vallis on the left and Ares Vallis on the right, flow northward from the highlands of the southern hemisphere of Mars.The stark difference between today's cold, dry Mars and the evidence of flood waters in the past tells scientists that the Martian climate has seen great changes

Ancient channels on Mars - Ancient channels on planet Mars. Ares Vallis - View of the area of Ares Vallis and Tiu Vallis obtained by the probe 2001 Mars Odyssey. This region seems to have been shaped by the passage of water. Channels scoured by ancient outbursts of flood waters are seen in this orbital view from Odyssey's Thermal Emission Imaging System.The channels are billions of years old and have likely been affected by multiple processes over time. Here, two channels, Tiu Vallis on the left and Ares Vallis on the right, flow northward from the highlands of the southern hemisphere of Mars.The stark difference between today's cold, dry Mars and the evidence of flood waters in the past tells scientists that the Martian climate has seen great changes

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Nebula Sh2 - 106 in the Swan - Sh2 - 106 nebula in Cygnus - Sharpless 106 (Sh2 - 106) is a star-forming region in the constellation Swan. Image obtained by Hubble Space Telescope (HST) and Subaru Telescope. The bipolar star - forming region, called Sharpless 2 - 106, or S106 for short, looks like a soaring, celestial snow angel. The outstretched “” wings”” of the nebula record the contrasting imprint of heat and motion against the backdrop of a colder medium. Twin lobes of super - hot gas, glowing blue in this image, stretch outward from the central star. This hot gas creates the “” wings”” of our angel. A ring of dust and gas orbiting the star acts like a belt, cinching the expanding nebula into an “” hourglass””” shape. This composite image combines optical and near - infrared astronomical data from the Hubble Space Telescope with mid - infrared data from the ground - based Subaru Telescope, located on Mauna Kea in Hawaii. The Hubble data (H - alpha, J, and H) were taken as part of H

Nebula Sh2 - 106 in the Swan - Sh2 - 106 nebula in Cygnus - Sharpless 106 (Sh2 - 106) is a star-forming region in the constellation Swan. Image obtained by Hubble Space Telescope (HST) and Subaru Telescope. The bipolar star - forming region, called Sharpless 2 - 106, or S106 for short, looks like a soaring, celestial snow angel. The outstretched “” wings”” of the nebula record the contrasting imprint of heat and motion against the backdrop of a colder medium. Twin lobes of super - hot gas, glowing blue in this image, stretch outward from the central star. This hot gas creates the “” wings”” of our angel. A ring of dust and gas orbiting the star acts like a belt, cinching the expanding nebula into an “” hourglass””” shape. This composite image combines optical and near - infrared astronomical data from the Hubble Space Telescope with mid - infrared data from the ground - based Subaru Telescope, located on Mauna Kea in Hawaii. The Hubble data (H - alpha, J, and H) were taken as part of H

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Frost patterns in Louth crater - Mars: frost patterns in Louth crater - This image shows frost deposits on martian dunes located in the Louth crater (70.2N 256.9W)

Frost patterns in Louth crater - Mars: frost patterns in Louth crater - This image shows frost deposits on martian dunes located in the Louth crater (70.2N 256.9W)

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March - Satellite Phobos - Martian moon Phobos - View of the satellite Phobos obtained on March 23, 2008 at a distance of 5800 km from the satellite

March - Satellite Phobos - Martian moon Phobos - View of the satellite Phobos obtained on March 23, 2008 at a distance of 5800 km from the satellite

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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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