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Stars in the spiral galaxy NGC 253 - Stars in galaxy NGC 253 - NGC 253 is the brightest galaxy of the Sculptor's group, group of galaxies closest to the Local Group. It is about 13 million light years away. Here, the Hubble space telescope photographed the different star populations of this galaxy. NGC 253 is a large, almost edge - on spiral galaxy, and is one of the nearest galaxies beyond our local neighborhood of galaxies. In this image taken by Hubble space telescope thousands of individual stars are resolved in this galaxy located 13 million light years away

Stars in the spiral galaxy NGC 253 - Stars in galaxy NGC 253 - NGC 253 is the brightest galaxy of the Sculptor's group, group of galaxies closest to the Local Group. It is about 13 million light years away. Here, the Hubble space telescope photographed the different star populations of this galaxy. NGC 253 is a large, almost edge - on spiral galaxy, and is one of the nearest galaxies beyond our local neighborhood of galaxies. In this image taken by Hubble space telescope thousands of individual stars are resolved in this galaxy located 13 million light years away

PIX4609097

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

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

PIX4621152

Astronomical Observations (oil on canvas)

Astronomical Observations (oil on canvas)

Creti, Donato (1671-1749)

XIR176624

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

Spiral Galaxy M83 in Hydra - Galaxy M83 in Hydra - The Galaxy M83 (NGC 5236) is located about 15 million years away from Earth. This galaxy is intermediate between a classic spiral and a barree spiral. Image obtained by the Hubble Space Telescope (HST). M83 (NGC 5236) is located in the southern constellation Hydra at 15 million light years from the sun. It is classified as intermediate between normal and barred spiral galaxies. Image taken with the Hubble space telescope (HST)

Spiral Galaxy M83 in Hydra - Galaxy M83 in Hydra - The Galaxy M83 (NGC 5236) is located about 15 million years away from Earth. This galaxy is intermediate between a classic spiral and a barree spiral. Image obtained by the Hubble Space Telescope (HST). M83 (NGC 5236) is located in the southern constellation Hydra at 15 million light years from the sun. It is classified as intermediate between normal and barred spiral galaxies. Image taken with the Hubble space telescope (HST)

PIX4612516

1960s: smoke billows in front of stars and galaxies in night sky, stars become blurry, then focus as smoke continues to blow past

1960s: smoke billows in front of stars and galaxies in night sky, stars become blurry, then focus as smoke continues to blow past

AVE8909431

Nebula NGC 1999 in Orion - NGC 1999 is a nebula located near the great Orion nebula 1500 years - light from Earth. It is a reflexion nebula illuminated by the star V380 Orionis. Image composite. NGC 1999, a reflection nebula illuminated by V380 Orionis, is located close to the famous Orion Nebula, about 1500 light - years from Earth. Image Composite

Nebula NGC 1999 in Orion - NGC 1999 is a nebula located near the great Orion nebula 1500 years - light from Earth. It is a reflexion nebula illuminated by the star V380 Orionis. Image composite. NGC 1999, a reflection nebula illuminated by V380 Orionis, is located close to the famous Orion Nebula, about 1500 light - years from Earth. Image Composite

PIX4618104

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

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

PIX4618883

Liquid mirror telescope on the Moon - Lunar liquid mirror telescope - Illustration of an astronomical observatory on the Moon. Installs near the southern pole of the Moon, a giant telescope with liquid mirror, one kilometre in diameter. A giant liquid mirror telescope 1 kilometer wide (6 tenths of a mile) and 1 kilometer tall lies nestled in an approximately 1 kilometer wide crater near the Moon's south pole. In the foreground is a kind of lunar city for human habitation composed of pressurized and radiation-hardened living units. On the upper right are landing pads for transports arriving to and departing from the lunar surface. A liquid mirror telescope is a Newtonian reflecting type telescope that employs a reflecting liquid as the primary mirror. A concept first identified 300 years ago by Isaac Newton himself, the reflecting liquid assumes the proper paraboloidal shape by rotating the container the liquid is in. On Earth working liquid mirror telescopes have been created with diam

Liquid mirror telescope on the Moon - Lunar liquid mirror telescope - Illustration of an astronomical observatory on the Moon. Installs near the southern pole of the Moon, a giant telescope with liquid mirror, one kilometre in diameter. A giant liquid mirror telescope 1 kilometer wide (6 tenths of a mile) and 1 kilometer tall lies nestled in an approximately 1 kilometer wide crater near the Moon's south pole. In the foreground is a kind of lunar city for human habitation composed of pressurized and radiation-hardened living units. On the upper right are landing pads for transports arriving to and departing from the lunar surface. A liquid mirror telescope is a Newtonian reflecting type telescope that employs a reflecting liquid as the primary mirror. A concept first identified 300 years ago by Isaac Newton himself, the reflecting liquid assumes the proper paraboloidal shape by rotating the container the liquid is in. On Earth working liquid mirror telescopes have been created with diam

Walter B Myers

PIX4639385

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

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

PIX4609752

Southern Aurora seen in ultraviolet (and Saturn seen in visible) by the Hubble space telescope January 26, 2004 - The January 26, 2004 image shows a Saturn's aurora Image taken by the Hubble space telescope (ultraviolet and visible composite images): Southern Aurora on the planet Saturn - Aurora australis on Saturn

Southern Aurora seen in ultraviolet (and Saturn seen in visible) by the Hubble space telescope January 26, 2004 - The January 26, 2004 image shows a Saturn's aurora Image taken by the Hubble space telescope (ultraviolet and visible composite images): Southern Aurora on the planet Saturn - Aurora australis on Saturn

PIX4624851

United States, 1990s: Close up antenna, zoom out

United States, 1990s: Close up antenna, zoom out

AVE6327779

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

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

PIX4610993

Center of the Spiral Galaxy M101 - Spiral galaxy M101 in constellation Ursa Major - The galaxy M101 (NGC 5457) is located about 27 million years - light from Earth. Composite image obtained by the Hubble Space Telescope. The spiral galaxy M101 is about 27 million light - years away in the constellation Ursa Major. Image of the core of M101 taken by the Hubble space telescope (HST)

Center of the Spiral Galaxy M101 - Spiral galaxy M101 in constellation Ursa Major - The galaxy M101 (NGC 5457) is located about 27 million years - light from Earth. Composite image obtained by the Hubble Space Telescope. The spiral galaxy M101 is about 27 million light - years away in the constellation Ursa Major. Image of the core of M101 taken by the Hubble space telescope (HST)

PIX4612732

Globular cluster NGC 362 - The globular cluster NGC 362: The globular cluster NGC 362 is a cluster of stars close to the galaxy of the Little Magellan Cloud in the southern hemisphere. Image obtained with the Hubble Space Telescope (HST). NGC 362 is a globular star cluster close to the Small Magellanic cloud, in southern hemisphere. Image taken by Hubble's Advanced Camera for Surveys (ACS)

Globular cluster NGC 362 - The globular cluster NGC 362: The globular cluster NGC 362 is a cluster of stars close to the galaxy of the Little Magellan Cloud in the southern hemisphere. Image obtained with the Hubble Space Telescope (HST). NGC 362 is a globular star cluster close to the Small Magellanic cloud, in southern hemisphere. Image taken by Hubble's Advanced Camera for Surveys (ACS)

PIX4574344

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

PIX4564696

Blue stragglers in cluster 47 Toucan - Blue stragglers in globular cluster 47 Tucanae - This image obtained by the Hubble space telescope shows a detail of the 47 Toucan cluster near its center (the field is indicated on the left image taken from the ground). The yellow circles on the right image indicate the position of stars identified by the telescope as blue trainers. Because of the high density of stars within a globular cluster, a collision between two stars sometimes occurs, merging into a single young, bright and warm star called a blue straggler. The core of globular cluster 47 Tucanae is home to many blue stragglers, rejuvenated stars that glow with the blue light of young stars. A ground - based telescope image (on the left) shows the entire crowded core of 47 Tucanae, located 15,000 light - years away in the constellation Tucana. Peering into the heart of the globular cluster's bright core, the Hubble Space Telescope's Wide Field and Planetary Camera 2 separated the dense c

Blue stragglers in cluster 47 Toucan - Blue stragglers in globular cluster 47 Tucanae - This image obtained by the Hubble space telescope shows a detail of the 47 Toucan cluster near its center (the field is indicated on the left image taken from the ground). The yellow circles on the right image indicate the position of stars identified by the telescope as blue trainers. Because of the high density of stars within a globular cluster, a collision between two stars sometimes occurs, merging into a single young, bright and warm star called a blue straggler. The core of globular cluster 47 Tucanae is home to many blue stragglers, rejuvenated stars that glow with the blue light of young stars. A ground - based telescope image (on the left) shows the entire crowded core of 47 Tucanae, located 15,000 light - years away in the constellation Tucana. Peering into the heart of the globular cluster's bright core, the Hubble Space Telescope's Wide Field and Planetary Camera 2 separated the dense c

PIX4564265

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

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

PIX4623359

Astronaut John Grunsfeld - 05/2009 - Astronaut John Grunsfeld - 05/2009 - Close up of astronaut John Grunsfeld during his first extravehicular exit to maintain the Hubble Space Telescope (HST). 14 May 2009. In this close - up scene featuring astronaut John Grunsfeld performing a spacewalk to work on the Hubble Space Telescope, the reflection in his helmet visor shows astronaut Andrew Feustel taking the photo as he's perched on the end of the Canadian - built remote manipulator system arm. The mission specialists are performing the first of five STS - 125 spacewalks and the first of three for this duo. 14 May 2009

Astronaut John Grunsfeld - 05/2009 - Astronaut John Grunsfeld - 05/2009 - Close up of astronaut John Grunsfeld during his first extravehicular exit to maintain the Hubble Space Telescope (HST). 14 May 2009. In this close - up scene featuring astronaut John Grunsfeld performing a spacewalk to work on the Hubble Space Telescope, the reflection in his helmet visor shows astronaut Andrew Feustel taking the photo as he's perched on the end of the Canadian - built remote manipulator system arm. The mission specialists are performing the first of five STS - 125 spacewalks and the first of three for this duo. 14 May 2009

PIX4645342

Hubble space telescope: 4th maintenance mission 05/2009 - Hubble space telescope: fourth repair mission 05/2009 - Astronaut Michael Good performs various maintenance tasks on the Hubble space telescope (HST) during the second of five space sorties planned during the STS mission - 125. 15 May 2009. Astronaut Michael Good, mission specialist, is positioned on the end of the Canadian - built remote manipulator system arm to do a servicing task on the Hubble Space Telescope, locked down in Atlantis' cargo bay. The scene was photographed during the second of five scheduled space walks to be performed in a five - day period by teh STS - 125 crew members. 15 May 2009

Hubble space telescope: 4th maintenance mission 05/2009 - Hubble space telescope: fourth repair mission 05/2009 - Astronaut Michael Good performs various maintenance tasks on the Hubble space telescope (HST) during the second of five space sorties planned during the STS mission - 125. 15 May 2009. Astronaut Michael Good, mission specialist, is positioned on the end of the Canadian - built remote manipulator system arm to do a servicing task on the Hubble Space Telescope, locked down in Atlantis' cargo bay. The scene was photographed during the second of five scheduled space walks to be performed in a five - day period by teh STS - 125 crew members. 15 May 2009

PIX4645350

An engraving depicting a 36-inch refractor at the Lick Observatory. One of the world's two largest refractors it is on a 'German' style equatorial mounting, with the axis parallel to Earth's polar axis supported on a high pillar. The counterbalance weight for the telescope shows clearly, 20th century

An engraving depicting a 36-inch refractor at the Lick Observatory. One of the world's two largest refractors it is on a 'German' style equatorial mounting, with the axis parallel to Earth's polar axis supported on a high pillar. The counterbalance weight for the telescope shows clearly, 20th century

UIG5311383

Galaxy ESO 77 - 14 - Galaxy ESO 77 - 14 - The galaxy ESO 77 - 14 is about 550 million light years away from Earth in the southern constellation of the Indian. This system consists of two interacting galaxies. Image obtained by the Hubble Space Telescope on August 17, 2001. This image of ESO 77 - 14 is a stunning snapshot of a celestial dance performed by a pair of similar sized galaxies. Two clear signatures of the gravitational tug of war between the galaxies are the bridge of material that connects them and the disruption of their main bodies. The galaxy on the right has a long, bluish arm while its companion has a shorter, redder arm. This interacting pair is in the constellation of Indus, the Indian, some 550 million light - years away from Earth. The dust lanes between the two galaxy centers show the extent of the distortion to the originally flat disks that have been pulled into three - dimensional shapes. Image taken by the Hubble space telescope on august 17, 2001

Galaxy ESO 77 - 14 - Galaxy ESO 77 - 14 - The galaxy ESO 77 - 14 is about 550 million light years away from Earth in the southern constellation of the Indian. This system consists of two interacting galaxies. Image obtained by the Hubble Space Telescope on August 17, 2001. This image of ESO 77 - 14 is a stunning snapshot of a celestial dance performed by a pair of similar sized galaxies. Two clear signatures of the gravitational tug of war between the galaxies are the bridge of material that connects them and the disruption of their main bodies. The galaxy on the right has a long, bluish arm while its companion has a shorter, redder arm. This interacting pair is in the constellation of Indus, the Indian, some 550 million light - years away from Earth. The dust lanes between the two galaxy centers show the extent of the distortion to the originally flat disks that have been pulled into three - dimensional shapes. Image taken by the Hubble space telescope on august 17, 2001

PIX4613637

Globular cluster NGC 6642 - Stars in globular cluster NGC 6642 in Sagittarius - Stars in globular cluster NGC 6642 in Sagittarius - Image of the center of the globular cluster NGC 6642 located in the constellation Sagittarius. The Hubble Space Telescope (HST) observed blue straggler. The core of NGC 6642, shown here in this Hubble Space Telescope image, is particularly dense, making this globular a difficult observational target for most telescopes. Using Hubble's ACS, astronomers have already made many interesting finds about NGC 6642. For example, many blue stragglers”” (stars which seemingly lag behind in their rate of aging) have been spotted in this globular, and it is known to be lacking in low - mass stars. This picture was created from visible and infrared images taken with the Wide Field Channel of the Advanced Camera for Surveys. The field of view is approximately 1.6 by 1.6 arcminutes.

Globular cluster NGC 6642 - Stars in globular cluster NGC 6642 in Sagittarius - Stars in globular cluster NGC 6642 in Sagittarius - Image of the center of the globular cluster NGC 6642 located in the constellation Sagittarius. The Hubble Space Telescope (HST) observed blue straggler. The core of NGC 6642, shown here in this Hubble Space Telescope image, is particularly dense, making this globular a difficult observational target for most telescopes. Using Hubble's ACS, astronomers have already made many interesting finds about NGC 6642. For example, many blue stragglers”” (stars which seemingly lag behind in their rate of aging) have been spotted in this globular, and it is known to be lacking in low - mass stars. This picture was created from visible and infrared images taken with the Wide Field Channel of the Advanced Camera for Surveys. The field of view is approximately 1.6 by 1.6 arcminutes.

PIX4564913

Hubble space telescope: 4th maintenance mission 05/2009 - Hubble space telescope: fourth repair mission 05/2009 - Astronaut Andrew Feustel transports the new WFC3 (Wide Field Camera 3) camera during his first extravehicular exit to install it aboard the Hubble space telescope (HST). 14 May 2009. But for the absence of gravity, astronaut Andrew Feustel, perched on the end of the remote manipulator system arm, would be a bit top heavy as he helps to install the Wide Field Camera 3 (WFC3) during a May 14 spacewalk to perform work on the Hubble Space Telescope. Out of frame is veteran astronaut John Grunsfeld, his spacewalking crewmate. The pair kicked off five back to back days of extravehicular activity for the STS - 125 crew. Feustel and Grunsfeld will participate in two of the remaining four spacewalks. 14 May 2009

Hubble space telescope: 4th maintenance mission 05/2009 - Hubble space telescope: fourth repair mission 05/2009 - Astronaut Andrew Feustel transports the new WFC3 (Wide Field Camera 3) camera during his first extravehicular exit to install it aboard the Hubble space telescope (HST). 14 May 2009. But for the absence of gravity, astronaut Andrew Feustel, perched on the end of the remote manipulator system arm, would be a bit top heavy as he helps to install the Wide Field Camera 3 (WFC3) during a May 14 spacewalk to perform work on the Hubble Space Telescope. Out of frame is veteran astronaut John Grunsfeld, his spacewalking crewmate. The pair kicked off five back to back days of extravehicular activity for the STS - 125 crew. Feustel and Grunsfeld will participate in two of the remaining four spacewalks. 14 May 2009

PIX4645327

Core of the Andromede Galaxy (M31) - The Andromede Galaxy is located about 2 million years away - light from Earth. View of its dual nucleus obtained by the Hubble Space Telescope (HST). Andromeda is the nearest major galaxy to our own Milky Way Galaxy. Our Galaxy is thought to look much like Andromeda. Together these two galaxies dominate the Local Group of galaxies. M31 is so distant it takes about two million years for light to reach us from there. Much about M31 remains unknown, including how the center acquired two nuclei. Image taken with the Hubble space telescope (HST)

Core of the Andromede Galaxy (M31) - The Andromede Galaxy is located about 2 million years away - light from Earth. View of its dual nucleus obtained by the Hubble Space Telescope (HST). Andromeda is the nearest major galaxy to our own Milky Way Galaxy. Our Galaxy is thought to look much like Andromeda. Together these two galaxies dominate the Local Group of galaxies. M31 is so distant it takes about two million years for light to reach us from there. Much about M31 remains unknown, including how the center acquired two nuclei. Image taken with the Hubble space telescope (HST)

R. Gendler

PIX4608904

Detail of the Cone nebula in the Unicorn - The Cone Nebula (NGC 2264) - Detail - Image obtained by the Hubble space telescope of the upper part of the Cone nebula (NGC 2264), a star-forming region located about 2500 years ago - light from Earth. The Cone Nebula (NGC 2264) - - so named because, in ground - based images, it has a conical shape - - this giant pillar resides in a turbulent star - forming region. This picture, taken by the Advanced Camera for Surveys (ACS) aboard Nasa's Hubble Space Telescope, shows the upper 2.5 light - years of the nebula, a height that equals 23 million roundtrips to the Moon. The entire nebula is 7 light - years long. The Cone Nebula resides 2,500 light - years away in the constellation Monoceros. ACS made this observation on April 2, 2002. The color image is constructed from three separate images taken in blue, near - infrared, and hydrogen - alpha filters

Detail of the Cone nebula in the Unicorn - The Cone Nebula (NGC 2264) - Detail - Image obtained by the Hubble space telescope of the upper part of the Cone nebula (NGC 2264), a star-forming region located about 2500 years ago - light from Earth. The Cone Nebula (NGC 2264) - - so named because, in ground - based images, it has a conical shape - - this giant pillar resides in a turbulent star - forming region. This picture, taken by the Advanced Camera for Surveys (ACS) aboard Nasa's Hubble Space Telescope, shows the upper 2.5 light - years of the nebula, a height that equals 23 million roundtrips to the Moon. The entire nebula is 7 light - years long. The Cone Nebula resides 2,500 light - years away in the constellation Monoceros. ACS made this observation on April 2, 2002. The color image is constructed from three separate images taken in blue, near - infrared, and hydrogen - alpha filters

PIX4618668

Centre de la nebula de la Lagoon (M8) dans le Sagittarius - In the heart of the Lagoon Nebula - Centre de la nebula de la Lagoon (M8) vue par le telescope Hubble (HST). This close - up shot of the centre of the Lagoon Nebula (Messier 8) clearly shows the delicate structures formed when the powerful radiation of young stars interacts with the hydrogen cloud they formed from. This image was created from exposures taken with the Wide Field Channel of the Advanced Camera for Surveys on Hubble. Light from glowing hydrogen (through the F658N filter) is coloured red. Light from ionised nitrogen (through the F660N filter) is coloured green and light through a yellow filter (F550M) is coloured blue. The exposure times through each filter are 1560 s, 1600 s and 400 s respectively. The blue - white flare at the upper - left of the image is scattered light from a bright star just outside the field of view. The field of view is about 3.3 by 1.7 arcminutes

Centre de la nebula de la Lagoon (M8) dans le Sagittarius - In the heart of the Lagoon Nebula - Centre de la nebula de la Lagoon (M8) vue par le telescope Hubble (HST). This close - up shot of the centre of the Lagoon Nebula (Messier 8) clearly shows the delicate structures formed when the powerful radiation of young stars interacts with the hydrogen cloud they formed from. This image was created from exposures taken with the Wide Field Channel of the Advanced Camera for Surveys on Hubble. Light from glowing hydrogen (through the F658N filter) is coloured red. Light from ionised nitrogen (through the F660N filter) is coloured green and light through a yellow filter (F550M) is coloured blue. The exposure times through each filter are 1560 s, 1600 s and 400 s respectively. The blue - white flare at the upper - left of the image is scattered light from a bright star just outside the field of view. The field of view is about 3.3 by 1.7 arcminutes

PIX4619692

The star Fomalhaut and its dust disc - Star Fomalhaut dust ring - The star Fomalhaut is located 25 years - light from Earth in the constellation of the Southern Fish. A dust disc surrounds it, seen here by the Hubble telescopes (left), Herschel (far infrared, centre) and Alma (right). This disc of interplanetary dust revolves around the young star at a distance of about 20 billion kilometers from it. The image taken at 850 microns wavelength by Alma seems to confirm that the planet discovered in 2008 in the Fomalhaut disc by Hubble does not exist. This image shows Fomalhaut and its dust ring. Images taken by the Hubble space telescope (HST, at left), Herschel telescope (middle) and Alma telescope (at right). Fomalhaut is much hotter than our Sun, 15 times as bright, and lies 25 light - years from Earth. An exoplanet was discovered in its dust ring but Alma observations seem to prove this planet doesn't exist

The star Fomalhaut and its dust disc - Star Fomalhaut dust ring - The star Fomalhaut is located 25 years - light from Earth in the constellation of the Southern Fish. A dust disc surrounds it, seen here by the Hubble telescopes (left), Herschel (far infrared, centre) and Alma (right). This disc of interplanetary dust revolves around the young star at a distance of about 20 billion kilometers from it. The image taken at 850 microns wavelength by Alma seems to confirm that the planet discovered in 2008 in the Fomalhaut disc by Hubble does not exist. This image shows Fomalhaut and its dust ring. Images taken by the Hubble space telescope (HST, at left), Herschel telescope (middle) and Alma telescope (at right). Fomalhaut is much hotter than our Sun, 15 times as bright, and lies 25 light - years from Earth. An exoplanet was discovered in its dust ring but Alma observations seem to prove this planet doesn't exist

PIX4571988

New Mexico. Radio Telescope Satellite Dish, Part Of The Very Large Array (Vla) At The National Radio Astronomy Observatory.

New Mexico. Radio Telescope Satellite Dish, Part Of The Very Large Array (Vla) At The National Radio Astronomy Observatory.

UIG541279

Interacting Galaxies Markarian 848 - Interacting galaxies Markarian 848 - The Markarian 848 galaxy is located about 550 million light years away from Earth in the constellation Bovier. This galaxy consists of two galaxies that merge. The nuclei of each of these galaxies are still visible and are apart by 16,000 light years. Image obtained by the Hubble Space Telescope on November 13, 2001. VV 705, or Markarian 848, consists of two galaxies that seem to be embracing each other. Two long, highly curved arms of gas and stars emerge from a central region with two cores. One arm, curving clockwise, stretches to the top of the image where it makes a U - turn and interlocks with the other arm that curves up counter - clockwise from below. The two cores are 16,000 light - years apart. The pair is thought to be midway through a merger. Markarian 848 is located in the constellation of Bootes, the Bear Watcher, and is approximately 550 million light - years away from Earth. Image taken by the Hub

Interacting Galaxies Markarian 848 - Interacting galaxies Markarian 848 - The Markarian 848 galaxy is located about 550 million light years away from Earth in the constellation Bovier. This galaxy consists of two galaxies that merge. The nuclei of each of these galaxies are still visible and are apart by 16,000 light years. Image obtained by the Hubble Space Telescope on November 13, 2001. VV 705, or Markarian 848, consists of two galaxies that seem to be embracing each other. Two long, highly curved arms of gas and stars emerge from a central region with two cores. One arm, curving clockwise, stretches to the top of the image where it makes a U - turn and interlocks with the other arm that curves up counter - clockwise from below. The two cores are 16,000 light - years apart. The pair is thought to be midway through a merger. Markarian 848 is located in the constellation of Bootes, the Bear Watcher, and is approximately 550 million light - years away from Earth. Image taken by the Hub

PIX4613691

Galaxy clusters Abell 2744 - Black material - X - rays, dark matter and galaxies in cluster Abell 2744

Galaxy clusters Abell 2744 - Black material - X - rays, dark matter and galaxies in cluster Abell 2744

PIX4565787

Star field in the halo of the Andromede galaxy - Deep field image in the halo of Andromeda galaxy - Deep field in the halo of the Andromede galaxy obtained by the Hubble space telescope in 2003. 300,000 stars as well as thousands of background galaxies are visible. Astronomers using Nasa's Hubble Space Telescope (HST) have reliably measured the age of the spherical halo of stars surrounding the neighboring Andromeda galaxy (M31). To their surprise, they have discovered that approximately one - third of the stars in Andromeda's halo formed only 6 to 8 billion years ago. That's a far cry from the 11 - to - 13 billion - year age of the stars in the Milky Way's halo. Why the difference in halo ages? Apparently, M31 must have gone through a major “” corporate merger”” with another large galaxy, or a series of mergers with smaller galaxies, billions of years ago. Astronomers cannot yet tell whether this was one tumultuous event or a more continual acquisition of smaller galaxies. The newly d

Star field in the halo of the Andromede galaxy - Deep field image in the halo of Andromeda galaxy - Deep field in the halo of the Andromede galaxy obtained by the Hubble space telescope in 2003. 300,000 stars as well as thousands of background galaxies are visible. Astronomers using Nasa's Hubble Space Telescope (HST) have reliably measured the age of the spherical halo of stars surrounding the neighboring Andromeda galaxy (M31). To their surprise, they have discovered that approximately one - third of the stars in Andromeda's halo formed only 6 to 8 billion years ago. That's a far cry from the 11 - to - 13 billion - year age of the stars in the Milky Way's halo. Why the difference in halo ages? Apparently, M31 must have gone through a major “” corporate merger”” with another large galaxy, or a series of mergers with smaller galaxies, billions of years ago. Astronomers cannot yet tell whether this was one tumultuous event or a more continual acquisition of smaller galaxies. The newly d

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Spiral galaxies NGC 3314 A and B in Hydra - Galaxy pair NGC 3314 in Hydra - NGC 3314 is a pair of spiral galaxies distant about 140 million years - Earth light. These galaxies are not interacting but just perfectly aligned in front of each other from Earth. Nasa's Hubble Space Telescope shows a rare view of a pair of overlapping galaxies, called NGC 3314. The two galaxies look as if they are colliding, but they are actually separated by tens of millions of light - years, or about ten times the distance between our Milky Way and the neighboring Andromeda galaxy. The chance alignment of the two galaxies, as seen from Earth, gives a unique look at the silhouetted spiral arms in the closer face - on spiral, NGC 3314A. The motion of the two galaxies indicates that they are both relatively undisturbed and that they are moving in markedly different directions. The color composite was produced from exposures taken in blue and red light with Hubble's Advanced Camera for Surveys. The pair of gal

Spiral galaxies NGC 3314 A and B in Hydra - Galaxy pair NGC 3314 in Hydra - NGC 3314 is a pair of spiral galaxies distant about 140 million years - Earth light. These galaxies are not interacting but just perfectly aligned in front of each other from Earth. Nasa's Hubble Space Telescope shows a rare view of a pair of overlapping galaxies, called NGC 3314. The two galaxies look as if they are colliding, but they are actually separated by tens of millions of light - years, or about ten times the distance between our Milky Way and the neighboring Andromeda galaxy. The chance alignment of the two galaxies, as seen from Earth, gives a unique look at the silhouetted spiral arms in the closer face - on spiral, NGC 3314A. The motion of the two galaxies indicates that they are both relatively undisturbed and that they are moving in markedly different directions. The color composite was produced from exposures taken in blue and red light with Hubble's Advanced Camera for Surveys. The pair of gal

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Elliptical galaxy NGC 1316 in the Furnace - Giant elliptical galaxy NGC 1316 - By studying the clusters of stars and clouds of dust visible in this photo taken by the Hubble space telescope in March 2003, it is believed that the giant elliptical galaxy NGC 1316 is the result of a collision of two spiral galaxies that occurred some billions of years ago. This galaxy resides about 75 million light years ago in the cluster of galaxies of the Furnace. Also called Fornax A, it is one of the strongest radio sources in the sky. This image made from data obtained with the NASA Hubble Space Telescope reveals the dust lanes and star clusters of this giant galaxy that give evidence that it was formed from a past merger of two gas - rich galaxies. NGC 1316 is on the outskirts of a nearby cluster of galaxies in the southern constellation of Fornax, at a distance of about 75 million light - years. It is one of the brightest ellipticals in the Fornax galaxy cluster. NGC 1316, also known as Fornax A,

Elliptical galaxy NGC 1316 in the Furnace - Giant elliptical galaxy NGC 1316 - By studying the clusters of stars and clouds of dust visible in this photo taken by the Hubble space telescope in March 2003, it is believed that the giant elliptical galaxy NGC 1316 is the result of a collision of two spiral galaxies that occurred some billions of years ago. This galaxy resides about 75 million light years ago in the cluster of galaxies of the Furnace. Also called Fornax A, it is one of the strongest radio sources in the sky. This image made from data obtained with the NASA Hubble Space Telescope reveals the dust lanes and star clusters of this giant galaxy that give evidence that it was formed from a past merger of two gas - rich galaxies. NGC 1316 is on the outskirts of a nearby cluster of galaxies in the southern constellation of Fornax, at a distance of about 75 million light - years. It is one of the brightest ellipticals in the Fornax galaxy cluster. NGC 1316, also known as Fornax A,

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Spiral Galaxy NGC 2397 - Galaxy Spiral NGC 2397 - The galaxy NGC 2397 is a classic spiral galaxy located about 60 million years ago - light from Earth in the southern constellation of Flying Fish. The central part houses old yellow and red stars while new stars form in the outer arms. This image obtained by the space telescope on 14 October 2006 shows the brightest of these young blue stars. The 2006bc supernova, which exploded in March 2006, is also visible near the central region, while its lightning shrinking. Located nearly 60 million light - years away from Earth, the galaxy NGC 2397 is typical of most spirals, with mostly older, yellow and red stars in its central portion, while star formation continues in the outer, bluer spiral arms. The brightest of these young, blue stars can be seen individually in this high resolution view from the Hubble's Advanced Camera for Surveys (ACS). One typical feature of this Hubble image is the view of supernova SN 2006bc taken when its brightnes

Spiral Galaxy NGC 2397 - Galaxy Spiral NGC 2397 - The galaxy NGC 2397 is a classic spiral galaxy located about 60 million years ago - light from Earth in the southern constellation of Flying Fish. The central part houses old yellow and red stars while new stars form in the outer arms. This image obtained by the space telescope on 14 October 2006 shows the brightest of these young blue stars. The 2006bc supernova, which exploded in March 2006, is also visible near the central region, while its lightning shrinking. Located nearly 60 million light - years away from Earth, the galaxy NGC 2397 is typical of most spirals, with mostly older, yellow and red stars in its central portion, while star formation continues in the outer, bluer spiral arms. The brightest of these young, blue stars can be seen individually in this high resolution view from the Hubble's Advanced Camera for Surveys (ACS). One typical feature of this Hubble image is the view of supernova SN 2006bc taken when its brightnes

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Interacting galaxies Arp 81 - Interacting galaxies Arp 81 - Arp 81 is located about 300 million light years away from Earth in the constellation Dragon. This pair of interacting galaxies is composed of NGC 6621 on the left and NGC 6622 on the right. NGC 6621 is the largest of the two galaxies. The collision, seen here about 100 million years later, caused intense star flames. Image obtained by the Hubble Space Telescope on 15 March 1999. NGC 6621/2 (VV 247, Arp 81) is a strongly interacting pair of galaxies, seen about 100 million years after their closest approach. It consists of NGC 6621 (to the left) and NGC 6622 (to the right). NGC 6621 is the larger of the two, and is a very disturbed spiral galaxy. The encounter has pulled a long tail out of NGC 6621 that has now wrapped behind its body. The collision has also triggered extensive star formation between the two galaxies. Scientists believe that Arp 81 has a richer collection of young massive star clusters than the notable Antennae

Interacting galaxies Arp 81 - Interacting galaxies Arp 81 - Arp 81 is located about 300 million light years away from Earth in the constellation Dragon. This pair of interacting galaxies is composed of NGC 6621 on the left and NGC 6622 on the right. NGC 6621 is the largest of the two galaxies. The collision, seen here about 100 million years later, caused intense star flames. Image obtained by the Hubble Space Telescope on 15 March 1999. NGC 6621/2 (VV 247, Arp 81) is a strongly interacting pair of galaxies, seen about 100 million years after their closest approach. It consists of NGC 6621 (to the left) and NGC 6622 (to the right). NGC 6621 is the larger of the two, and is a very disturbed spiral galaxy. The encounter has pulled a long tail out of NGC 6621 that has now wrapped behind its body. The collision has also triggered extensive star formation between the two galaxies. Scientists believe that Arp 81 has a richer collection of young massive star clusters than the notable Antennae

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Stars in the spiral galaxy NGC 253 - Stars in galaxy NGC 253 - NGC 253 is the brightest galaxy of the Sculptor's group, group of galaxies closest to the Local Group. It is about 13 million light years away. Here, the Hubble space telescope photographed the different star populations of this galaxy. A close - up view from Hubble space telescope shows that NGC 253 is ablaze with the light from thousands of young, blue stars. The spiral galaxy is undergoing intense star training. This image, taken with Hubble's Advanced Camera for Surveys, reveals colors and differing intensities of individual stars as well dark filaments of dust and gas interstellar dust intersperced among the stars. NGC 253 is the dominant galaxy in the Sculptor Group of galaxies and resides about 13 million light - years from Earth. This galaxy is part of a detailed survey called the ACS Nearby Galaxy Survey Treasury program (ANGST). The natural - color images were constructed using Hubble observations taken in infrare

Stars in the spiral galaxy NGC 253 - Stars in galaxy NGC 253 - NGC 253 is the brightest galaxy of the Sculptor's group, group of galaxies closest to the Local Group. It is about 13 million light years away. Here, the Hubble space telescope photographed the different star populations of this galaxy. A close - up view from Hubble space telescope shows that NGC 253 is ablaze with the light from thousands of young, blue stars. The spiral galaxy is undergoing intense star training. This image, taken with Hubble's Advanced Camera for Surveys, reveals colors and differing intensities of individual stars as well dark filaments of dust and gas interstellar dust intersperced among the stars. NGC 253 is the dominant galaxy in the Sculptor Group of galaxies and resides about 13 million light - years from Earth. This galaxy is part of a detailed survey called the ACS Nearby Galaxy Survey Treasury program (ANGST). The natural - color images were constructed using Hubble observations taken in infrare

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

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

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Colliding galaxies NGC 4676 in Berenice's Hair - Colliding galaxies NGC 4676 - The galaxy NGC 4676 is located about 300 million years away - light from Earth. It is a system of two spiral galaxies that collide and eventually become one galaxy. This image was obtained by the Hubble Space Telescope in April 2002. Located 300 million light - years away in the constellation Coma Berenices, the colliding galaxies have been nicknamed “” The Mice”” because of the long tails of stars and gas emanating from each galaxy. Otherwise known as NGC 4676, the pair will eventually merge into a single giant galaxy. Image obtained by the Hubble space telescope in April 2002

Colliding galaxies NGC 4676 in Berenice's Hair - Colliding galaxies NGC 4676 - The galaxy NGC 4676 is located about 300 million years away - light from Earth. It is a system of two spiral galaxies that collide and eventually become one galaxy. This image was obtained by the Hubble Space Telescope in April 2002. Located 300 million light - years away in the constellation Coma Berenices, the colliding galaxies have been nicknamed “” The Mice”” because of the long tails of stars and gas emanating from each galaxy. Otherwise known as NGC 4676, the pair will eventually merge into a single giant galaxy. Image obtained by the Hubble space telescope in April 2002

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

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

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Group of Galaxies HCG 31 - Hickson Compact Group 31 - This group of interacting galaxies is located 166 million years of light from Earth in the constellation Eridan. Dwarf galaxies are merging causing intense star formation. This long fusion process will lead to the birth of a large elliptical galaxy. Image obtained by the Hubble Space Telescope on August 8, 2006. These four dwarf galaxies waited billions of years to come together, setting off a fireworks show as thousands of new star clusters come to life. The distorted galaxies are quickly producing massive, hot, young stars that are pumping out ultraviolet radiation, heating up surrounding gas clouds, and causing them to glow. Such encounters between dwarf galaxies are normally seen billions of light - years away and therefore occurred billions of years ago. But these galaxies, members of Hickson Compact Group 31, are relatively nearby, only 166 million light - years away. In this image, taken by Nasa's Hubble Space Telescope, the

Group of Galaxies HCG 31 - Hickson Compact Group 31 - This group of interacting galaxies is located 166 million years of light from Earth in the constellation Eridan. Dwarf galaxies are merging causing intense star formation. This long fusion process will lead to the birth of a large elliptical galaxy. Image obtained by the Hubble Space Telescope on August 8, 2006. These four dwarf galaxies waited billions of years to come together, setting off a fireworks show as thousands of new star clusters come to life. The distorted galaxies are quickly producing massive, hot, young stars that are pumping out ultraviolet radiation, heating up surrounding gas clouds, and causing them to glow. Such encounters between dwarf galaxies are normally seen billions of light - years away and therefore occurred billions of years ago. But these galaxies, members of Hickson Compact Group 31, are relatively nearby, only 166 million light - years away. In this image, taken by Nasa's Hubble Space Telescope, the

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Neowise satellite (illustration)

Neowise satellite (illustration)

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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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An engraving depicting a 36-inch refractor at the Lick Observatory. One of the world's two largest refractors it is on a 'German' style equatorial mounting, with the axis parallel to Earth's polar axis supported on a high pillar. The counterbalance weight for the telescope shows clearly, 19th century

An engraving depicting a 36-inch refractor at the Lick Observatory. One of the world's two largest refractors it is on a 'German' style equatorial mounting, with the axis parallel to Earth's polar axis supported on a high pillar. The counterbalance weight for the telescope shows clearly, 19th century

UIG5311382

Spitzer Space Telescope infrared image of Whirlpool Galaxy. Strange structures bridge gaps between dust-rich spiral arms, and show the dust, gas and stellar populations in the bright spiral galaxy. Credit NASA. Science Astronomy

Spitzer Space Telescope infrared image of Whirlpool Galaxy. Strange structures bridge gaps between dust-rich spiral arms, and show the dust, gas and stellar populations in the bright spiral galaxy. Credit NASA. Science Astronomy

UIG528806

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

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

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Spiral galaxies NGC 3314 A and B in Hydra - Galaxy pair NGC 3314 in Hydra - NGC 3314 is a pair of spiral galaxies distant about 140 million years - Earth light. These galaxies are not interacting but just perfectly aligned in front of each other from Earth. Through an extraordinary chance alignment, a face - on spiral galaxy lies precisely in front of another larger spiral. This line - up provides us with the rare chance to visualize dark material within the front galaxy, seen only because it is silhouetted against the object behind it. NGC 3314 lies about 140 million light - years from Earth, in the direction of the southern hemisphere constellation Hydra. The bright blue stars forming a pinwheel shape near the center of the front galaxy have formed recently from interstellar gas and dust. In many galaxies, interstellar dust lies only in the same regions as recently formed blue stars. However, in the foreground galaxy, NGC 3314a, there are numerous additional dark dust lanes that are

Spiral galaxies NGC 3314 A and B in Hydra - Galaxy pair NGC 3314 in Hydra - NGC 3314 is a pair of spiral galaxies distant about 140 million years - Earth light. These galaxies are not interacting but just perfectly aligned in front of each other from Earth. Through an extraordinary chance alignment, a face - on spiral galaxy lies precisely in front of another larger spiral. This line - up provides us with the rare chance to visualize dark material within the front galaxy, seen only because it is silhouetted against the object behind it. NGC 3314 lies about 140 million light - years from Earth, in the direction of the southern hemisphere constellation Hydra. The bright blue stars forming a pinwheel shape near the center of the front galaxy have formed recently from interstellar gas and dust. In many galaxies, interstellar dust lies only in the same regions as recently formed blue stars. However, in the foreground galaxy, NGC 3314a, there are numerous additional dark dust lanes that are

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

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

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Planetary nebula M57 (NGC 6720) in Lyra - The Ring nebula M57 in Lyra - The planetary nebula of Lyra (M57) is located about 2000 years - light from Earth. A planetary nebula is a gas shell from a small late-life star whose heart collapsed to become a white dwarf and expelled the outer layers of its matter. Image obtained by the Hubble Space Telescope (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

Planetary nebula M57 (NGC 6720) in Lyra - The Ring nebula M57 in Lyra - The planetary nebula of Lyra (M57) is located about 2000 years - light from Earth. A planetary nebula is a gas shell from a small late-life star whose heart collapsed to become a white dwarf and expelled the outer layers of its matter. Image obtained by the Hubble Space Telescope (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

R. Gendler

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Texas, Fort Davis. Optical Telescopes At Mcdonald-Davis Observatory.

Texas, Fort Davis. Optical Telescopes At Mcdonald-Davis Observatory.

UIG541301

Galaxy NGC 6240 in Ophiuchus - Galaxy NGC 6240 in Ophiuchus - The galaxy NGC 6240, is about 400 million light years away from Earth in the constellation Ophiuchus. This system consists of two colliding galaxies each with a central black hole; in several millions of years, they will form only one galaxy. Image obtained by the Hubble space telescope on 10 February 2002. NGC 6240 is a peculiar, butterfly - or lobster - shaped galaxy consisting of two smaller merging galaxies. It lies in the constellation of Ophiuchus, the Serpent Holder, some 400 million light - years away. Observations with NASA s Chandra X - ray Observatory have disclosed two giant black holes, about 3,000 light - years apart, which will drift towards one another and eventually merge together into a larger black hole. The merging process, which began about 30 million years ago, triggered dramatic star formation and sparked numerous supernova explosions. The merger will be complete in some tens to hundreds of millions of

Galaxy NGC 6240 in Ophiuchus - Galaxy NGC 6240 in Ophiuchus - The galaxy NGC 6240, is about 400 million light years away from Earth in the constellation Ophiuchus. This system consists of two colliding galaxies each with a central black hole; in several millions of years, they will form only one galaxy. Image obtained by the Hubble space telescope on 10 February 2002. NGC 6240 is a peculiar, butterfly - or lobster - shaped galaxy consisting of two smaller merging galaxies. It lies in the constellation of Ophiuchus, the Serpent Holder, some 400 million light - years away. Observations with NASA s Chandra X - ray Observatory have disclosed two giant black holes, about 3,000 light - years apart, which will drift towards one another and eventually merge together into a larger black hole. The merging process, which began about 30 million years ago, triggered dramatic star formation and sparked numerous supernova explosions. The merger will be complete in some tens to hundreds of millions of

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Spiral Galaxy M83 in Hydra - M83 (NGC 5236) - The galaxy M83 (NGC 5236) is about 15 million light years away from Earth. This galaxy is intermediate between a classic spiral and a barree spiral. Composite images obtained from the Hubble Space Telescope (HST), the Subaru Telescope and the 2.2m MPG telescope of the ESO. M83 (NGC 5236) is located in the southern constellation Hydra at 15 million light years from the sun. It is classified as intermediate between normal and barred spiral galaxies. Composite image from four data sources (8.2 Meter Subaru Telescope, Hubble Space Telescope, 2.2 - meter Max Planck - ESO telescope and 14.5” RC)

Spiral Galaxy M83 in Hydra - M83 (NGC 5236) - The galaxy M83 (NGC 5236) is about 15 million light years away from Earth. This galaxy is intermediate between a classic spiral and a barree spiral. Composite images obtained from the Hubble Space Telescope (HST), the Subaru Telescope and the 2.2m MPG telescope of the ESO. M83 (NGC 5236) is located in the southern constellation Hydra at 15 million light years from the sun. It is classified as intermediate between normal and barred spiral galaxies. Composite image from four data sources (8.2 Meter Subaru Telescope, Hubble Space Telescope, 2.2 - meter Max Planck - ESO telescope and 14.5” RC)

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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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Abell 383 galaxy cluster and primitive galaxy - Abell 383 cluster of galaxies with gravitational arcs - Abell 383 is a cluster of galaxies located in the constellation Eridan. This image obtained by the Hubble Space Telescope (HST) in 2011 shows gravitational arcs among galaxies. These mirages are deformed images of farther galaxies located behind the cluster. Thanks to this magnifying effect, the resulting image revealed the presence of a primitive galaxy, nee 200 million years after the big blow. Astronomers have uncovered one of the youngest galaxies in the distant universe, with stars that formed 13.5 billion years ago, a mere 200 million years after the Big Bang. The finding addresses questions about when the first galaxies arose, and how the early universe evolved. Nasa's Hubble Space Telescope was the first to spot the newfound galaxy. Detailed observations from the W.M. Keck Observatory on Mauna Kea in Hawaii revealed the observed light dates to when the universe was only 950 m

Abell 383 galaxy cluster and primitive galaxy - Abell 383 cluster of galaxies with gravitational arcs - Abell 383 is a cluster of galaxies located in the constellation Eridan. This image obtained by the Hubble Space Telescope (HST) in 2011 shows gravitational arcs among galaxies. These mirages are deformed images of farther galaxies located behind the cluster. Thanks to this magnifying effect, the resulting image revealed the presence of a primitive galaxy, nee 200 million years after the big blow. Astronomers have uncovered one of the youngest galaxies in the distant universe, with stars that formed 13.5 billion years ago, a mere 200 million years after the Big Bang. The finding addresses questions about when the first galaxies arose, and how the early universe evolved. Nasa's Hubble Space Telescope was the first to spot the newfound galaxy. Detailed observations from the W.M. Keck Observatory on Mauna Kea in Hawaii revealed the observed light dates to when the universe was only 950 m

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Hubble space telescope: 4th maintenance mission 05/2009 - Hubble space telescope: fourth repair mission 05/2009 - Astronauts John Grunsfeld (bottom) and Andrew Feustel (on the robotic arm of the shuttle) during their first extravehicular exit to maintain the Hubble space telescope (HST). 14 May 2009. Astronauts John Grunsfeld (bottom) and Andrew Feustel, perched alone on the end of the Space Shuttle Atlantis' remote manipulator system, perform the first of five STS - 125 spacewalks to perform work on the Hubble Space Telescope, temporarily locked down in the cargo bay of the Earth - orbiting shuttle. The two mission specialists are assigned to two of the remaining four sessions of extravehicular activity. 14 May 2009

Hubble space telescope: 4th maintenance mission 05/2009 - Hubble space telescope: fourth repair mission 05/2009 - Astronauts John Grunsfeld (bottom) and Andrew Feustel (on the robotic arm of the shuttle) during their first extravehicular exit to maintain the Hubble space telescope (HST). 14 May 2009. Astronauts John Grunsfeld (bottom) and Andrew Feustel, perched alone on the end of the Space Shuttle Atlantis' remote manipulator system, perform the first of five STS - 125 spacewalks to perform work on the Hubble Space Telescope, temporarily locked down in the cargo bay of the Earth - orbiting shuttle. The two mission specialists are assigned to two of the remaining four sessions of extravehicular activity. 14 May 2009

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Hubble space telescope: 4th maintenance mission 05/2009 - Hubble space telescope: fourth repair mission 05/2009 - Astronauts John Grunsfeld (on the robotic arm of the shuttle) and Andrew Feustel (down) during the fifth and last extravehicular exit to maintain the Hubble space telescope (HST). 18 May 2009. Astronaut John Grunsfeld, STS - 125 mission specialist, positioned on a foot restraint on the end of Atlantis' remote manipulator system (RMS), and astronaut Andrew Feustel (bottom center), mission specialist, participate in the mission's fifth and final session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the seven - hour and two - minute spacewalk, Grunsfeld and Feustel installed a battery group replacement, removed and replaced a Fine Guidance Sensor and three thermal blankets (NOBL) protecting Hubble's electronics. 18 May 2009

Hubble space telescope: 4th maintenance mission 05/2009 - Hubble space telescope: fourth repair mission 05/2009 - Astronauts John Grunsfeld (on the robotic arm of the shuttle) and Andrew Feustel (down) during the fifth and last extravehicular exit to maintain the Hubble space telescope (HST). 18 May 2009. Astronaut John Grunsfeld, STS - 125 mission specialist, positioned on a foot restraint on the end of Atlantis' remote manipulator system (RMS), and astronaut Andrew Feustel (bottom center), mission specialist, participate in the mission's fifth and final session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the seven - hour and two - minute spacewalk, Grunsfeld and Feustel installed a battery group replacement, removed and replaced a Fine Guidance Sensor and three thermal blankets (NOBL) protecting Hubble's electronics. 18 May 2009

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Hubble space telescope: 4th maintenance mission 05/2009 - Hubble space telescope: fourth repair mission 05/2009 - Astronaut John Grunsfeld during the fifth and last extravehicular exit to maintain the Hubble space telescope (HST). 18 May 2009. Astronaut John Grunsfeld, STS - 125 mission specialist, positioned on a foot restraint on the end of Atlantis' remote manipulator system (RMS), participates in the mission's fifth and final session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the seven - hour and two - minute spacewalk, Grunsfeld and astronaut Andrew Feustel (out of frame), mission specialist, installed a battery group replacement, removed and replaced a Fine Guidance Sensor and three thermal blankets (NOBL) protecting Hubble's electronics. The blackness of space and the thin line of Earth's atmosphere provide the backdrop for this scene. 18 May 2009

Hubble space telescope: 4th maintenance mission 05/2009 - Hubble space telescope: fourth repair mission 05/2009 - Astronaut John Grunsfeld during the fifth and last extravehicular exit to maintain the Hubble space telescope (HST). 18 May 2009. Astronaut John Grunsfeld, STS - 125 mission specialist, positioned on a foot restraint on the end of Atlantis' remote manipulator system (RMS), participates in the mission's fifth and final session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the seven - hour and two - minute spacewalk, Grunsfeld and astronaut Andrew Feustel (out of frame), mission specialist, installed a battery group replacement, removed and replaced a Fine Guidance Sensor and three thermal blankets (NOBL) protecting Hubble's electronics. The blackness of space and the thin line of Earth's atmosphere provide the backdrop for this scene. 18 May 2009

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Galaxies UGC 1810 and UGC 1813 in Andromede - Galaxies UGC 1810 and UGC 1813 in Andromeda - These two interacting galaxies also called Arp 273 are located about 340 million years ago - light from Earth in the constellation Andromede. Image obtained by the Hubble Space Telescope (HST), December 17, 2010. These galaxies also cataloged as Arp 273 lie at a distance of about 340 million light - years. Their distorted appearance is due to gravitational tides as the pair engage in close encounters. The larger of the spiral galaxies, known as UGC 1810, has a disk that is distorted into a rose - like shape by the gravitational tidal pull of the companion galaxy below it, known as UGC 1813. This image is a composite of Hubble Wide Field Camera 3 data taken on December 17, 2010, with three separate filters that allow a broad range of wavelengths covering the ultraviolet, blue, and red portions of the spectrum

Galaxies UGC 1810 and UGC 1813 in Andromede - Galaxies UGC 1810 and UGC 1813 in Andromeda - These two interacting galaxies also called Arp 273 are located about 340 million years ago - light from Earth in the constellation Andromede. Image obtained by the Hubble Space Telescope (HST), December 17, 2010. These galaxies also cataloged as Arp 273 lie at a distance of about 340 million light - years. Their distorted appearance is due to gravitational tides as the pair engage in close encounters. The larger of the spiral galaxies, known as UGC 1810, has a disk that is distorted into a rose - like shape by the gravitational tidal pull of the companion galaxy below it, known as UGC 1813. This image is a composite of Hubble Wide Field Camera 3 data taken on December 17, 2010, with three separate filters that allow a broad range of wavelengths covering the ultraviolet, blue, and red portions of the spectrum

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