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Surface of Pluto - Artist view - Pluto surface- Artist view: In the sky of Pluto, the Sun and the satellite Charon

Surface of Pluto - Artist view - Pluto surface- Artist view: In the sky of Pluto, the Sun and the satellite Charon

Miller, Ron (b.1947)

PIX4624643

Mars and its satellites - Mars and its moons - Photomontage showing the planet Mars surrounded by its two satellites, Phobos (middle) and Deimos (right)

Mars and its satellites - Mars and its moons - Photomontage showing the planet Mars surrounded by its two satellites, Phobos (middle) and Deimos (right)

PIX4616921

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

PIX4645337

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

PIX4645395

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

PIX4645417

Occultation of Venus by the Moon 12/2008 - Occultation of Venus by the Moon 12/2008 - Photograph of Venus just under the Moon obtained on 1 December 2008 after its occultation by our satellite. On the top right, the other bright spot is Jupiter Planet. We also distinguish its satellites. Venus just under the Moon, after its occultation. The bright dot at upper right is Jupiter with some of its satellites. December 1st 2008

Occultation of Venus by the Moon 12/2008 - Occultation of Venus by the Moon 12/2008 - Photograph of Venus just under the Moon obtained on 1 December 2008 after its occultation by our satellite. On the top right, the other bright spot is Jupiter Planet. We also distinguish its satellites. Venus just under the Moon, after its occultation. The bright dot at upper right is Jupiter with some of its satellites. December 1st 2008

PIX4586904

Rhea, satellite of Saturn, seen by Cassini - Saturn's moon Rhea seen by Cassini - Mosaic of images obtained by the Cassini probe in March 2015. Rhea is the second largest satellite in Saturn (1528 km in diameter). After a couple of years in high - inclination orbits that limited its ability to encounter Saturn's moons, Nasa's Cassini spacecraft returned to Saturn's equatorial plane in March 2015.Image taken using clear, green, infrared and ultraviolet spectral filters were combined to create these enhanced color views, which offer an expanded range of the colors visible to human eyes in order to highlight subtle color differences across Rhea's surface. The moon's surface is fairly uniform in natural color.This view at right is centered at 9 degrees north latitude, 254 degrees west longitude. Resolution in this mosaic is 300 meters (984 feet) per pixel. The image was acquired at a distance that ranged from about 36,000 to 32.100 miles (57,900 to 51,700 kilometers) from Rhea

Rhea, satellite of Saturn, seen by Cassini - Saturn's moon Rhea seen by Cassini - Mosaic of images obtained by the Cassini probe in March 2015. Rhea is the second largest satellite in Saturn (1528 km in diameter). After a couple of years in high - inclination orbits that limited its ability to encounter Saturn's moons, Nasa's Cassini spacecraft returned to Saturn's equatorial plane in March 2015.Image taken using clear, green, infrared and ultraviolet spectral filters were combined to create these enhanced color views, which offer an expanded range of the colors visible to human eyes in order to highlight subtle color differences across Rhea's surface. The moon's surface is fairly uniform in natural color.This view at right is centered at 9 degrees north latitude, 254 degrees west longitude. Resolution in this mosaic is 300 meters (984 feet) per pixel. The image was acquired at a distance that ranged from about 36,000 to 32.100 miles (57,900 to 51,700 kilometers) from Rhea

PIX4625591

Tethys, Saturn satellite, seen by the Cassini probe - Saturn's moon Tethys seen by Cassini spacecraft: The Tethys satellite photographed by the Cassini probe on 11 April 2015 has a distance of 53,000 km from the satellite. Tethys is about 1070 km in diameter. - This enhancement-color mosaic of Saturn's icy moon Tethys shows a range of features on the moon's trailing hemisphere. Tethys is tidally locked to Saturn, so the trailing hemisphere is the side of the moon that always faces opposite its direction of motion as it orbits the planet - Images taken using clear, green, infrared and ultraviolet spectral filters were combined to create the view, which highlights subtle color differences across Tethys' surface at wavelengths not visible to human eyes. The moon's surface is fairly uniform in natural color - The color of the surface changes conspicuously across the disk, from yellowish hues to nearly white. These broad color changes are affected by a number of external processes. First, S

Tethys, Saturn satellite, seen by the Cassini probe - Saturn's moon Tethys seen by Cassini spacecraft: The Tethys satellite photographed by the Cassini probe on 11 April 2015 has a distance of 53,000 km from the satellite. Tethys is about 1070 km in diameter. - This enhancement-color mosaic of Saturn's icy moon Tethys shows a range of features on the moon's trailing hemisphere. Tethys is tidally locked to Saturn, so the trailing hemisphere is the side of the moon that always faces opposite its direction of motion as it orbits the planet - Images taken using clear, green, infrared and ultraviolet spectral filters were combined to create the view, which highlights subtle color differences across Tethys' surface at wavelengths not visible to human eyes. The moon's surface is fairly uniform in natural color - The color of the surface changes conspicuously across the disk, from yellowish hues to nearly white. These broad color changes are affected by a number of external processes. First, S

PIX4625625

Mars - Phobos Satellite - Martian moon Phobos - View of the Phobos satellite obtained by the Mars Express probe on March 7, 2010. The resolution is 4.4 meters per pixel. Mars Express took this image of the surface of the moon Phobos on 7 March 2010. The resolution is about 4.4 m/pixel

Mars - Phobos Satellite - Martian moon Phobos - View of the Phobos satellite obtained by the Mars Express probe on March 7, 2010. The resolution is 4.4 meters per pixel. Mars Express took this image of the surface of the moon Phobos on 7 March 2010. The resolution is about 4.4 m/pixel

PIX4616280

Saturn seen from his satellite Japet - Saturn as seen from Iapetus

Saturn seen from his satellite Japet - Saturn as seen from Iapetus

Miller, Ron (b.1947)

PIX4974169

Sunrise seen from Triton - Artist view - Sunrise on Triton - Artist view - Sunrise seen from Triton, the largest satellite in Neptune. A diminutive sun rises over Triton's hard and glistening landscape of rock, frozen water, carbon dioxide, nitrogen, and methane. The little warmth that reaches Triton's surface induces a nitrogen and methane haze, forming a very tenuous atmosphere. It is very cold on Triton with temperatures falling as low as minus 391o F. While as much as 25% of Triton may be composed of water ice, it is very unlikely that there is any liquid water, or life, on this world

Sunrise seen from Triton - Artist view - Sunrise on Triton - Artist view - Sunrise seen from Triton, the largest satellite in Neptune. A diminutive sun rises over Triton's hard and glistening landscape of rock, frozen water, carbon dioxide, nitrogen, and methane. The little warmth that reaches Triton's surface induces a nitrogen and methane haze, forming a very tenuous atmosphere. It is very cold on Triton with temperatures falling as low as minus 391o F. While as much as 25% of Triton may be composed of water ice, it is very unlikely that there is any liquid water, or life, on this world

Walter B Myers

PIX4624014

Saturn view of the surroundings of Dione - Illustration - Saturn from the vicinity of Dione - The planet Saturn seen from the surroundings of its satellite Dione. Dione, visible in the foreground, has a diameter of about 1100 km and is mainly composed of ice. In the background, another Saturn ice satellite is visible, Tethys. This is how Saturn might appear from near Dione, one of Saturn's inner icy satellites. Dione is about 700 miles in diameter and is believed to be composed primarily of water ice along with lesser amounts of silicate rocks. In this image, Dione is in the foreground orbiting about 197 thousand miles above Saturn's cloud tops. Further towards Saturn at a distance of 50 thousand miles from Dione is Tethys, another icy moon, slightly smaller than Dione. Tethys is silhouetted against the “” ring shine”” on Saturn's night side - - reflected sunlight on the cloud tops from Saturn's rings

Saturn view of the surroundings of Dione - Illustration - Saturn from the vicinity of Dione - The planet Saturn seen from the surroundings of its satellite Dione. Dione, visible in the foreground, has a diameter of about 1100 km and is mainly composed of ice. In the background, another Saturn ice satellite is visible, Tethys. This is how Saturn might appear from near Dione, one of Saturn's inner icy satellites. Dione is about 700 miles in diameter and is believed to be composed primarily of water ice along with lesser amounts of silicate rocks. In this image, Dione is in the foreground orbiting about 197 thousand miles above Saturn's cloud tops. Further towards Saturn at a distance of 50 thousand miles from Dione is Tethys, another icy moon, slightly smaller than Dione. Tethys is silhouetted against the “” ring shine”” on Saturn's night side - - reflected sunlight on the cloud tops from Saturn's rings

Walter B Myers

PIX4625632

Neptune and Triton - Illustration - Neptune from Triton orbit - Neptune and its Triton satellite (foreground). Looking like an over - ripe cantaloupe, Neptune's satellite Triton is in the foreground while Neptune itself looms on the upper right. At a distance of 220 thousand miles, Triton is about the same distance from Neptune as the moon is from the Earth. A frozen world that's somewhat smaller than the moon, Triton is the seventh and largest of Neptune's satellites, completing an orbit every six days. Triton is believed to be composed primarily of rock and water ice with traces of methane and other compounds

Neptune and Triton - Illustration - Neptune from Triton orbit - Neptune and its Triton satellite (foreground). Looking like an over - ripe cantaloupe, Neptune's satellite Triton is in the foreground while Neptune itself looms on the upper right. At a distance of 220 thousand miles, Triton is about the same distance from Neptune as the moon is from the Earth. A frozen world that's somewhat smaller than the moon, Triton is the seventh and largest of Neptune's satellites, completing an orbit every six days. Triton is believed to be composed primarily of rock and water ice with traces of methane and other compounds

Walter B Myers

PIX4624052

Tethys, Saturn satellite, seen by the Cassini probe - Saturn's moon Tethys seen by Cassini spacecraft - The Tethys satellite photographed by the Cassini probe on August 30, 2007 at a distance of 97,000 km. Tethys is about 1070 km in diameter. At the top left of the picture is the gigantic impact crater Odysseus, which measures 450 km in diameter. The vast expanse of the crater Odysseus spreads out below Cassini in this mosaic view of Saturn's moon Tethys. The crater (450 kilometers or 280 miles across) is a remarkably well - preserved example of an ancient multi - ringed impact basin: the outer ring is defined by steep, cliff - like walls that descend to generally broad internal terraces. The inner ring is formed by a prominent, crown - shaped, 140 - kilometer (88 - mile) diameter circular band of icy mountains. Multi - ring basins are seen on rocky bodies as well as icy ones. The complex internal structure and multi - ringed nature of these very large basins are believed to arise from

Tethys, Saturn satellite, seen by the Cassini probe - Saturn's moon Tethys seen by Cassini spacecraft - The Tethys satellite photographed by the Cassini probe on August 30, 2007 at a distance of 97,000 km. Tethys is about 1070 km in diameter. At the top left of the picture is the gigantic impact crater Odysseus, which measures 450 km in diameter. The vast expanse of the crater Odysseus spreads out below Cassini in this mosaic view of Saturn's moon Tethys. The crater (450 kilometers or 280 miles across) is a remarkably well - preserved example of an ancient multi - ringed impact basin: the outer ring is defined by steep, cliff - like walls that descend to generally broad internal terraces. The inner ring is formed by a prominent, crown - shaped, 140 - kilometer (88 - mile) diameter circular band of icy mountains. Multi - ring basins are seen on rocky bodies as well as icy ones. The complex internal structure and multi - ringed nature of these very large basins are believed to arise from

PIX4625574

Artist's view of the New Horizons probe near Pluto - The New Horizons spacecraft near Pluto - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it reached in 2015 and Kuiper's objects in 2020. Artist's concept of the New Horizons spacecraft as it approaches Pluto and its largest moon, Charon, in July 2015. The craft's miniature cameras, radio science experiment, ultraviolet and infrared spectrometers and space plasma experiments will characterize the global geology and geomorphology of Pluto and Charon, map their surface compositions and temperatures, and examine Pluto's atmosphere in detail. The spacecraft's most prominent design feature is a nearly 7 - foot (2.1 - meter) dish antenna, through which it will communicate with Earth from as far as 4.7 billion miles (7.5 billion kilometers) away

Artist's view of the New Horizons probe near Pluto - The New Horizons spacecraft near Pluto - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it reached in 2015 and Kuiper's objects in 2020. Artist's concept of the New Horizons spacecraft as it approaches Pluto and its largest moon, Charon, in July 2015. The craft's miniature cameras, radio science experiment, ultraviolet and infrared spectrometers and space plasma experiments will characterize the global geology and geomorphology of Pluto and Charon, map their surface compositions and temperatures, and examine Pluto's atmosphere in detail. The spacecraft's most prominent design feature is a nearly 7 - foot (2.1 - meter) dish antenna, through which it will communicate with Earth from as far as 4.7 billion miles (7.5 billion kilometers) away

PIX4607314

New Horizons closest approach to Pluto - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. Nasa's New Horizons unmanned spacecraft flies into the shadow of dwarf planet Pluto and its moon Charon. New Horizons has been en route to Pluto since its launch from Earth in 2006 and is scheduled to make its closest approach on 14 July 2015. New Horizons will be traveling at a velocity relative to Pluto of 30,800 mph, far too fast for it to enter orbit around and become a satellite of Pluto. Instead after passing Pluto, New Horizons will continue farther into the Kuiper belt searching for other objects with diameters of 30 to 60 miles. New Horizons is about the size and shape of a grand piano and weighed 1,054 pounds at launch. The high - gain dish antenna is about 7 feet in diameter and is employed for communicati

New Horizons closest approach to Pluto - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. Nasa's New Horizons unmanned spacecraft flies into the shadow of dwarf planet Pluto and its moon Charon. New Horizons has been en route to Pluto since its launch from Earth in 2006 and is scheduled to make its closest approach on 14 July 2015. New Horizons will be traveling at a velocity relative to Pluto of 30,800 mph, far too fast for it to enter orbit around and become a satellite of Pluto. Instead after passing Pluto, New Horizons will continue farther into the Kuiper belt searching for other objects with diameters of 30 to 60 miles. New Horizons is about the size and shape of a grand piano and weighed 1,054 pounds at launch. The high - gain dish antenna is about 7 feet in diameter and is employed for communicati

Walter B Myers

PIX4607362

Cliffs sur Pluto - Artist view - Pluto Ice Cliffs - Artist view: In the sky, the Sun and the satellite Charon

Cliffs sur Pluto - Artist view - Pluto Ice Cliffs - Artist view: In the sky, the Sun and the satellite Charon

Miller, Ron (b.1947)

PIX4624639

Crater sur Pluto - Artist view - Pluto Crater - Artist view: View of a crater filled with ice on the surface of Pluto. In the sky, satellites Charon, Nix and Hydra - Ice-filled crater on Pluto

Crater sur Pluto - Artist view - Pluto Crater - Artist view: View of a crater filled with ice on the surface of Pluto. In the sky, satellites Charon, Nix and Hydra - Ice-filled crater on Pluto

Miller, Ron (b.1947)

PIX4624725

Geyser on Titan - Artist view - Cryogeyser on Titan - Artist view - Artist view of geysers on the surface of Titan, Saturn's largest satellite. Cryogeyser on Titan - Life Artist

Geyser on Titan - Artist view - Cryogeyser on Titan - Artist view - Artist view of geysers on the surface of Titan, Saturn's largest satellite. Cryogeyser on Titan - Life Artist

Miller, Ron (b.1947)

PIX4626008

Pluto vue de Charon - Vue d'artiste - Pluto seen from Charon - Artist view: Vue d'artiste de Pluto vue dans le ciel de son satellite Charon. Pluto seen from its moon Charon

Pluto vue de Charon - Vue d'artiste - Pluto seen from Charon - Artist view: Vue d'artiste de Pluto vue dans le ciel de son satellite Charon. Pluto seen from its moon Charon

Miller, Ron (b.1947)

PIX4624501

Saturn from its moon Epimethee - Illustration - Saturn from its moon Epimetheus

Saturn from its moon Epimethee - Illustration - Saturn from its moon Epimetheus

Miller, Ron (b.1947)

PIX4626419

The Galilean satellite Io floats above the cloudtops of Jupiter in this image captured on January 1, 2001. Cassini Spacecraft.

The Galilean satellite Io floats above the cloudtops of Jupiter in this image captured on January 1, 2001. Cassini Spacecraft.

UIG867492

Oil Lake on Titan - Titan's ethane ocean - Artist's view of a hydrocarbon lake (methane - ethane) on the surface of Titan. Compared to the Earth, Titan is very far from the Sun's warming rays - - about ten times further - - and this leaves Titan a very cold world. Titan has an average surface temperature of minus 290o F. If there is any water on Titan it is frozen hard as steel, yet Titan may be the only body in the Solar System besides the Earth that harbors a liquid ocean. Titan's ocean would not be one of water, rather it would probably be composed of (very cold) liquid ethane. (On the Earth we know ethane as a colorless, odorless, nontoxic, flammable gas, a constituent of natural gas and petroleum.) If this werenn't exotic enough, immediately beneath this ocean may lie hundreds of feet of frozen acetylene (a common component of welder's torches)

Oil Lake on Titan - Titan's ethane ocean - Artist's view of a hydrocarbon lake (methane - ethane) on the surface of Titan. Compared to the Earth, Titan is very far from the Sun's warming rays - - about ten times further - - and this leaves Titan a very cold world. Titan has an average surface temperature of minus 290o F. If there is any water on Titan it is frozen hard as steel, yet Titan may be the only body in the Solar System besides the Earth that harbors a liquid ocean. Titan's ocean would not be one of water, rather it would probably be composed of (very cold) liquid ethane. (On the Earth we know ethane as a colorless, odorless, nontoxic, flammable gas, a constituent of natural gas and petroleum.) If this werenn't exotic enough, immediately beneath this ocean may lie hundreds of feet of frozen acetylene (a common component of welder's torches)

Walter B Myers

PIX4626096

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

PIX4645324

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 (foreground) 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 (foreground), 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 (foreground) 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 (foreground), 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

PIX4645396

Cassini - Huygens en route to Titan - The Cassini - Huygens probe above Titan's atmosphere - Artist's view of the Cassini probe before the separation of the European Huygens module on 25 December 2004. Huygens landed on the Titan satellite on 14 January 2005. The Cassini-Huygens probe was launched on 15 October 1997 and has been placed in orbit around Saturn since 1 July 2004. This artist's conception of the Cassini orbiter shows the Huygens probe before separation to enter Titan's atmosphere. After separation, the probe drifts for about three weeks until reaching its destination. Equipped with a variety of scientific sensors, the Huygens probe will spend 2 - 2.5 hours descending through Titan's dense, murky atmosphere of nitrogen and carbon - based molecules, beaming its findings to the distant Cassini orbiter overhead. The probe could continue to relay information for up to 30 minutes after it lands on Titan's frigid surface, after which the orbiter passes beneath the horizon as seen

Cassini - Huygens en route to Titan - The Cassini - Huygens probe above Titan's atmosphere - Artist's view of the Cassini probe before the separation of the European Huygens module on 25 December 2004. Huygens landed on the Titan satellite on 14 January 2005. The Cassini-Huygens probe was launched on 15 October 1997 and has been placed in orbit around Saturn since 1 July 2004. This artist's conception of the Cassini orbiter shows the Huygens probe before separation to enter Titan's atmosphere. After separation, the probe drifts for about three weeks until reaching its destination. Equipped with a variety of scientific sensors, the Huygens probe will spend 2 - 2.5 hours descending through Titan's dense, murky atmosphere of nitrogen and carbon - based molecules, beaming its findings to the distant Cassini orbiter overhead. The probe could continue to relay information for up to 30 minutes after it lands on Titan's frigid surface, after which the orbiter passes beneath the horizon as seen

D. Ducros

PIX4606041

Pluto vue de Charon - Vue d'artiste - Pluto seen from Charon - Artist view - Vue d'artiste de Pluto vue dans le ciel de son satellite Charon. Pluto seen from its moon Charon

Pluto vue de Charon - Vue d'artiste - Pluto seen from Charon - Artist view - Vue d'artiste de Pluto vue dans le ciel de son satellite Charon. Pluto seen from its moon Charon

Miller, Ron (b.1947)

PIX4624485

Mimas, satellite of Saturn, seen by the Cassini probe on 13/02/2010 - Saturn's moon Mimas seen by Cassini spacecraft - February 13 2010 - The Mimas satellite photographed by the Cassini probe on 13 February 2010 has a distance of 16,000 km from the satellite. Mimas is about 400 km in diameter. In the centre left, the large impact crater Herschel, 130 km wide. Relatively dark regions below bright crater walls and streaks on some of the walls are seen in this mosaic of Saturn's moon Mimas, created from images taken by Nasa's Cassini spacecraft during its closest flyby of the moon. The crater floors and surroundings are about 20 percent darker than the steep crater walls in this view. Mimas 'original surface, like the surfaces of most of the other major Saturnian moons without atmospheres, is not pure ice but contains some dark impurities. The relatively dark markings appear along the lower portion of the walls of Herschel Crater (130 kilometers, 80 miles wide) and some of the smaller cra

Mimas, satellite of Saturn, seen by the Cassini probe on 13/02/2010 - Saturn's moon Mimas seen by Cassini spacecraft - February 13 2010 - The Mimas satellite photographed by the Cassini probe on 13 February 2010 has a distance of 16,000 km from the satellite. Mimas is about 400 km in diameter. In the centre left, the large impact crater Herschel, 130 km wide. Relatively dark regions below bright crater walls and streaks on some of the walls are seen in this mosaic of Saturn's moon Mimas, created from images taken by Nasa's Cassini spacecraft during its closest flyby of the moon. The crater floors and surroundings are about 20 percent darker than the steep crater walls in this view. Mimas 'original surface, like the surfaces of most of the other major Saturnian moons without atmospheres, is not pure ice but contains some dark impurities. The relatively dark markings appear along the lower portion of the walls of Herschel Crater (130 kilometers, 80 miles wide) and some of the smaller cra

PIX4625578

Saturn view of its satellite Dione - Illustration - Ice walls of Dione

Saturn view of its satellite Dione - Illustration - Ice walls of Dione

Miller, Ron (b.1947)

PIX4625635

Jupiter seen from his satellite S/2003 J 2 - Illustration - Jupiter seen from S/2003 J 2: S/2003 J 2 is a Jupiter satellite, the farthest from the planet we know

Jupiter seen from his satellite S/2003 J 2 - Illustration - Jupiter seen from S/2003 J 2: S/2003 J 2 is a Jupiter satellite, the farthest from the planet we know

Miller, Ron (b.1947)

PIX4614287

Geyser sur Enceladus - Artist view - Water geyser on Enceladus - Artist view: Artist view of an ice geyser on the surface of the Enceladus satellite. In the sky, the planet Saturn - Liquid water reaches the surface of Enceladus' south pole and drives a massive plume of ice crystals into the sky. Saturn itself appears low on the horizon due to the proximity to Enceladus' pole

Geyser sur Enceladus - Artist view - Water geyser on Enceladus - Artist view: Artist view of an ice geyser on the surface of the Enceladus satellite. In the sky, the planet Saturn - Liquid water reaches the surface of Enceladus' south pole and drives a massive plume of ice crystals into the sky. Saturn itself appears low on the horizon due to the proximity to Enceladus' pole

Miller, Ron (b.1947)

PIX4625876

Saturn seen by the Cassini probe 02/2007 - Saturn from Cassini spacecraft 02/2007 - Image obtained by the Cassini probe on 3 February 2007 at a distance of 1.1 million km from the planet. At the bottom of the picture, near the planet blade on the left, we can distinguish the Janus satellite. View of Saturn obtained with the Cassini spacecraft on February 03 2007, at a distance of approximately 1.1 million kilometers from the planet. The small moon Janus can be spotted off the planet's western limb near the image bottom

Saturn seen by the Cassini probe 02/2007 - Saturn from Cassini spacecraft 02/2007 - Image obtained by the Cassini probe on 3 February 2007 at a distance of 1.1 million km from the planet. At the bottom of the picture, near the planet blade on the left, we can distinguish the Janus satellite. View of Saturn obtained with the Cassini spacecraft on February 03 2007, at a distance of approximately 1.1 million kilometers from the planet. The small moon Janus can be spotted off the planet's western limb near the image bottom

PIX4625079

Artist's view of the New Horizons probe near Pluto - The New Horizons spacecraft near Pluto - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it reached in 2015 and Kuiper's objects in 2020. Artist's concept of the New Horizons spacecraft as it approaches Pluto and its largest moon, Charon, in July 2015. The craft's miniature cameras, radio science experiment, ultraviolet and infrared spectrometers and space plasma experiments will characterize the global geology and geomorphology of Pluto and Charon, map their surface compositions and temperatures, and examine Pluto's atmosphere in detail. The spacecraft's most prominent design feature is a nearly 7 - foot (2.1 - meter) dish antenna, through which it will communicate with Earth from as far as 4.7 billion miles (7.5 billion kilometers) away

Artist's view of the New Horizons probe near Pluto - The New Horizons spacecraft near Pluto - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it reached in 2015 and Kuiper's objects in 2020. Artist's concept of the New Horizons spacecraft as it approaches Pluto and its largest moon, Charon, in July 2015. The craft's miniature cameras, radio science experiment, ultraviolet and infrared spectrometers and space plasma experiments will characterize the global geology and geomorphology of Pluto and Charon, map their surface compositions and temperatures, and examine Pluto's atmosphere in detail. The spacecraft's most prominent design feature is a nearly 7 - foot (2.1 - meter) dish antenna, through which it will communicate with Earth from as far as 4.7 billion miles (7.5 billion kilometers) away

PIX4607330

Tethys, Saturn satellite, seen by the Cassini probe - Saturn's moon Tethys seen by Cassini spacecraft - The southern pole of the Tethys satellite photographed by the Cassini probe on September 24, 2005. Mosaic of nine images. With this full - disk mosaic, Cassini presents the best view yet of the south pole of Saturn's moon Tethys. The giant rift Ithaca Chasma cuts across the disk. Much of the topography seen here, including that of Ithaca Chasma, has a soft, muted appearance. It is clearly very old and has been heavily bombarded by impacts over time. Many of the fresh - appearing craters (ones with crisp relief) exhibit unusually bright crater floors. The origin of the apparent brightness (or “” albedo”) contrast is not known. It is possible that impacts punched through to a brighter layer underneath, or perhaps it is brighter because of different grain sizes or textures of the crater floor material in comparison to material along the crater walls and surrounding surface. The moon's h

Tethys, Saturn satellite, seen by the Cassini probe - Saturn's moon Tethys seen by Cassini spacecraft - The southern pole of the Tethys satellite photographed by the Cassini probe on September 24, 2005. Mosaic of nine images. With this full - disk mosaic, Cassini presents the best view yet of the south pole of Saturn's moon Tethys. The giant rift Ithaca Chasma cuts across the disk. Much of the topography seen here, including that of Ithaca Chasma, has a soft, muted appearance. It is clearly very old and has been heavily bombarded by impacts over time. Many of the fresh - appearing craters (ones with crisp relief) exhibit unusually bright crater floors. The origin of the apparent brightness (or “” albedo”) contrast is not known. It is possible that impacts punched through to a brighter layer underneath, or perhaps it is brighter because of different grain sizes or textures of the crater floor material in comparison to material along the crater walls and surrounding surface. The moon's h

PIX4625583

Exploration of the satellite Europe - Illustration - Exploring Europa - Illustration: Astronauts explore the surface of Europe, Jupiter's satellite - Manned exploration of Europa, one of the jupiter's moon

Exploration of the satellite Europe - Illustration - Exploring Europa - Illustration: Astronauts explore the surface of Europe, Jupiter's satellite - Manned exploration of Europa, one of the jupiter's moon

Miller, Ron (b.1947)

PIX4614359

Exploration of the satellite Europe - Illustration - Exploring Europa - Illustration: Astronauts explore the surface of Europe, Jupiter's satellite - Manned exploration of Europa, one of the jupiter's moon

Exploration of the satellite Europe - Illustration - Exploring Europa - Illustration: Astronauts explore the surface of Europe, Jupiter's satellite - Manned exploration of Europa, one of the jupiter's moon

Miller, Ron (b.1947)

PIX4614386

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

Great Astronomical Discoveries (engraving)

Great Astronomical Discoveries (engraving)

English School, (19th century)

LIP1594351

Astronauts on Titan - Illustration - Walking a dry gully on Titan - Astronauts explore Titan's surface. Earthlings explore a dry gully on Saturn's moon Titan. In early 2005 the European Space Agency's Huygens probe revealed a surface carved by numerous drainage channels similar to river deltas on Earth. While the exact nature of these channels is not yet known, one theory proposes that Titan's surface of hydrocarbon sediments has been washed from the highlands by methane rain

Astronauts on Titan - Illustration - Walking a dry gully on Titan - Astronauts explore Titan's surface. Earthlings explore a dry gully on Saturn's moon Titan. In early 2005 the European Space Agency's Huygens probe revealed a surface carved by numerous drainage channels similar to river deltas on Earth. While the exact nature of these channels is not yet known, one theory proposes that Titan's surface of hydrocarbon sediments has been washed from the highlands by methane rain

Walter B Myers

PIX4626139

Exploration of the satellite Europe - Illustration - Exploring Europa - Illustration: Astronauts explore the surface of Europe, Jupiter's satellite. Manned exploration of Europa, one of the jupiter's moon

Exploration of the satellite Europe - Illustration - Exploring Europa - Illustration: Astronauts explore the surface of Europe, Jupiter's satellite. Manned exploration of Europa, one of the jupiter's moon

Miller, Ron (b.1947)

PIX4575334

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 fourth of five space sorties planned during the STS mission - 125. 17 May 2009. Astronaut Michael Good, STS - 125 mission specialist, rides Atlantis' remote manipulator system arm to the exact position he needs to be to continue work on the Hubble Space Telescope. Astronaut Mike Massimino, who shared two spacewalks with Good during the last week, is out of frame. 17 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 fourth of five space sorties planned during the STS mission - 125. 17 May 2009. Astronaut Michael Good, STS - 125 mission specialist, rides Atlantis' remote manipulator system arm to the exact position he needs to be to continue work on the Hubble Space Telescope. Astronaut Mike Massimino, who shared two spacewalks with Good during the last week, is out of frame. 17 May 2009

PIX4645380

Saturn view from his satellite Tethys - Artist view - Saturn from Tethys - Artist view - Artist view from Ithaca Chasma on the surface of the satellite Tethys. Ithaca Chasma is a large valley 100 km wide, 2000 km long and several km deep. Artist rendering of Ithaca Chasma, a large valley on Saturn's moon Tethys. Ithaca Chasma is 100 km wide, 3 to 5 km deep and 2,000 km long

Saturn view from his satellite Tethys - Artist view - Saturn from Tethys - Artist view - Artist view from Ithaca Chasma on the surface of the satellite Tethys. Ithaca Chasma is a large valley 100 km wide, 2000 km long and several km deep. Artist rendering of Ithaca Chasma, a large valley on Saturn's moon Tethys. Ithaca Chasma is 100 km wide, 3 to 5 km deep and 2,000 km long

Miller, Ron (b.1947)

PIX4626250

Saturn view from his satellite Tethys - Artist view - Saturn from Tethys - Artist view - Artist view from Ithaca Chasma on the surface of the satellite Tethys. Ithaca Chasma is a large valley 100 km wide, 2000 km long and several km deep. Artist rendering of Ithaca Chasma, a large valley on Saturn's moon Tethys. Ithaca Chasma is 100 km wide, 3 to 5 km deep and 2,000 km long

Saturn view from his satellite Tethys - Artist view - Saturn from Tethys - Artist view - Artist view from Ithaca Chasma on the surface of the satellite Tethys. Ithaca Chasma is a large valley 100 km wide, 2000 km long and several km deep. Artist rendering of Ithaca Chasma, a large valley on Saturn's moon Tethys. Ithaca Chasma is 100 km wide, 3 to 5 km deep and 2,000 km long

Miller, Ron (b.1947)

PIX4626263

Geyser on Titan - Artist view - Cryogeyser on Titan - Artist view - Artist view of geyser on the surface of Titan, Saturn's largest satellite

Geyser on Titan - Artist view - Cryogeyser on Titan - Artist view - Artist view of geyser on the surface of Titan, Saturn's largest satellite

Miller, Ron (b.1947)

PIX4974163

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

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

Walter B Myers

PIX4625896

Methane lake on Titan - Artist view - Titan lake - Artist view: Artist view from the surface of the Titan satellite. The Cassini probe confirmed that methane or ethane lakes exist on its surface. Lakes of liquid methane or exotic hydrocarbons cover the surface of Titan

Methane lake on Titan - Artist view - Titan lake - Artist view: Artist view from the surface of the Titan satellite. The Cassini probe confirmed that methane or ethane lakes exist on its surface. Lakes of liquid methane or exotic hydrocarbons cover the surface of Titan

Miller, Ron (b.1947)

PIX4626115

Pluto vue de Charon - Vue d'artiste - Pluto seen from Charon - Artist view - Vue d'artiste de Pluto vue dans le ciel de son satellite Charon. Pluto seen from its moon Charon

Pluto vue de Charon - Vue d'artiste - Pluto seen from Charon - Artist view - Vue d'artiste de Pluto vue dans le ciel de son satellite Charon. Pluto seen from its moon Charon

Miller, Ron (b.1947)

PIX4624464

Saturn seen from its satellite Rhea - Artist view - Saturn from Rhea - Artist view - Artist view of the craterisee surface of the satellite Rhea and the planet Saturn. Saturn rises above the cratered terrain of Rhea

Saturn seen from its satellite Rhea - Artist view - Saturn from Rhea - Artist view - Artist view of the craterisee surface of the satellite Rhea and the planet Saturn. Saturn rises above the cratered terrain of Rhea

Steven Hobbs

PIX4626363

Saturn and Mimas seen by the Cassini probe 18/01/2005 - Saturn and Mimas seen by Cassini spacecraft Jan. 18 2005 - The Mimas satellite photographed in front of Saturn by the Cassini probe on 18 January 2005 at a distance of 1.4 million km from the planet. The shadow of Saturn's rings is projected on the planet. Mimas drifts along in its orbit against the azure backdrop of Saturn's northern latitudes in this true color view. The long, dark lines on the atmosphere are shadows cast by the planet's rings. Saturn's northern hemisphere is presently relatively cloud - free, and rays of sunlight take a long path through the atmosphere. This results in sunlight being scattered at shorter (bluer) wavelengths, thus giving the northernmost latitudes their bluish appearance at visible wavelengths. At the bottom, craters on icy Mimas (398 kilometers, or 247 miles across) give the moon a dimpled appearance. Images taken using infrared (930 nanometers), green (568 nanometers) and ultraviolet (338 nano

Saturn and Mimas seen by the Cassini probe 18/01/2005 - Saturn and Mimas seen by Cassini spacecraft Jan. 18 2005 - The Mimas satellite photographed in front of Saturn by the Cassini probe on 18 January 2005 at a distance of 1.4 million km from the planet. The shadow of Saturn's rings is projected on the planet. Mimas drifts along in its orbit against the azure backdrop of Saturn's northern latitudes in this true color view. The long, dark lines on the atmosphere are shadows cast by the planet's rings. Saturn's northern hemisphere is presently relatively cloud - free, and rays of sunlight take a long path through the atmosphere. This results in sunlight being scattered at shorter (bluer) wavelengths, thus giving the northernmost latitudes their bluish appearance at visible wavelengths. At the bottom, craters on icy Mimas (398 kilometers, or 247 miles across) give the moon a dimpled appearance. Images taken using infrared (930 nanometers), green (568 nanometers) and ultraviolet (338 nano

PIX4625133

Saturn above the clouds of Titan - Illustration - Saturn from atop Titan's hydrocarbon haze - Artist's view of the planet Saturn view 80 km above the surface of his satellite Titan. In the plane of the rings of the planet appear from left to right the satellites Enceladus, Dione, Tethys and Rhea. Saturn and its rings would be a majestic sight lording over Titan's hydrocarbon haze. The viewpoint is from 50 miles above Titan's surface and three - quarters of a million miles away from Saturn itself. Four of Saturn's smaller satellites can also be seen along the ring plane: left to right are Enceladus, Dione, Tethys and Rhea. Technically, the orange clouds mark the beginning of Titan's condensate haze, which consists of ethane, methane, nitrogen, and a variety of hydrocarbons known collectively as tholin. These gases and hydrocarbons extend upward another 250 miles, resulting in a bluish, earthlike sky, albeit darker due to Titan's great distance from the Sun. Tholin is created by the inte

Saturn above the clouds of Titan - Illustration - Saturn from atop Titan's hydrocarbon haze - Artist's view of the planet Saturn view 80 km above the surface of his satellite Titan. In the plane of the rings of the planet appear from left to right the satellites Enceladus, Dione, Tethys and Rhea. Saturn and its rings would be a majestic sight lording over Titan's hydrocarbon haze. The viewpoint is from 50 miles above Titan's surface and three - quarters of a million miles away from Saturn itself. Four of Saturn's smaller satellites can also be seen along the ring plane: left to right are Enceladus, Dione, Tethys and Rhea. Technically, the orange clouds mark the beginning of Titan's condensate haze, which consists of ethane, methane, nitrogen, and a variety of hydrocarbons known collectively as tholin. These gases and hydrocarbons extend upward another 250 miles, resulting in a bluish, earthlike sky, albeit darker due to Titan's great distance from the Sun. Tholin is created by the inte

Walter B Myers

PIX4626034

Remains of the supernova of the Sails - Detail - Vela supernova remnant. Detail - Detail of the rest of the supernova of the Sails. The supernova exploded 12,000 years ago. The line that crosses the image is the trace left by the passage of a satellite during the photo shoot. Image obtained with Siding Spring's 3.9m telescope. A supernova event marks the catastrophic end - point in the life of a massive star. The self - destruction of the star releases a huge amount of energy as radiation of all kinds, but a substantial fraction of the force of the explosion blasts the outer part of the supernova into an expanding shell of matter that travels through the almost empty space between the stars. As the rapidly moving blast wave encounters the relatively stationary interstellar medium it creates a very narrow, luminous shock front that appears as a faint nebula. Because the shock front is very convoluted the nebulosity appears to be highly structured and the various colours define different

Remains of the supernova of the Sails - Detail - Vela supernova remnant. Detail - Detail of the rest of the supernova of the Sails. The supernova exploded 12,000 years ago. The line that crosses the image is the trace left by the passage of a satellite during the photo shoot. Image obtained with Siding Spring's 3.9m telescope. A supernova event marks the catastrophic end - point in the life of a massive star. The self - destruction of the star releases a huge amount of energy as radiation of all kinds, but a substantial fraction of the force of the explosion blasts the outer part of the supernova into an expanding shell of matter that travels through the almost empty space between the stars. As the rapidly moving blast wave encounters the relatively stationary interstellar medium it creates a very narrow, luminous shock front that appears as a faint nebula. Because the shock front is very convoluted the nebulosity appears to be highly structured and the various colours define different

PIX4582923

Astronauts explore Io - Illustration - Astronauts on Io - Illustration - Astronauts observe a volcanic eruption on Io, one of Jupiter's satellites. Astronauts are watching a volcanic eruption on Io, one of the Jupiter's moons

Astronauts explore Io - Illustration - Astronauts on Io - Illustration - Astronauts observe a volcanic eruption on Io, one of Jupiter's satellites. Astronauts are watching a volcanic eruption on Io, one of the Jupiter's moons

Miller, Ron (b.1947)

PIX4575275

Exploration of the satellite Europe - Illustration - Navigating the fractured ice crust of Europa: Astronauts explore the surface of Europe, Jupiter's satellite. Manned exploration of Europa, one of the jupiter's moon

Exploration of the satellite Europe - Illustration - Navigating the fractured ice crust of Europa: Astronauts explore the surface of Europe, Jupiter's satellite. Manned exploration of Europa, one of the jupiter's moon

Miller, Ron (b.1947)

PIX4614382

Moon of about 22 days - A 22 day moon: The Moon seen on 26 August 2016, a day after the last quarter. - Mosaic of images showing the Moon on august 26 2016, one day after the last quarter

Moon of about 22 days - A 22 day moon: The Moon seen on 26 August 2016, a day after the last quarter. - Mosaic of images showing the Moon on august 26 2016, one day after the last quarter

Sebastian Voltmer

PIX4614568

The dark stretches on the Moon, called the seas, are huge basins of impacts inundate by lava today solidified: Formation of the lunar seas - Formation of a lunar sea. Artwork

The dark stretches on the Moon, called the seas, are huge basins of impacts inundate by lava today solidified: Formation of the lunar seas - Formation of a lunar sea. Artwork

S. Numazawa

PIX4614757

Japet, satellite of Saturn, seen by Cassini - Saturn's moon Iapetus seen by Cassini spacecraft - Comparison of the two hemispheres of Japet, a satellite of Saturn of 1471 kilometres in diameter. Its main feature is the color difference between the two hemispheres. On the left, the dark region called Cassini Regio with to the east the largest crater of Japet, named Turgis (580 km in diameter). On the right, the bright side of the satellite with Roncevaux Terra (north) and Saragossa Terra (south) housing the large impact crater Engelier (504 km in diameter). Both images were obtained by the Cassini probe on 10 September 2007 (right) and 27 December 2004 (left). These two global images of Iapetus show the extreme brightness dichotomy on the surface of this peculiar Saturnian moon. The left - hand panel shows the moon's leading hemisphere and the right - hand panel shows the moon's trailing side. While low and mid latitudes of the leading side exhibit a surface almost as dark as charcoal,

Japet, satellite of Saturn, seen by Cassini - Saturn's moon Iapetus seen by Cassini spacecraft - Comparison of the two hemispheres of Japet, a satellite of Saturn of 1471 kilometres in diameter. Its main feature is the color difference between the two hemispheres. On the left, the dark region called Cassini Regio with to the east the largest crater of Japet, named Turgis (580 km in diameter). On the right, the bright side of the satellite with Roncevaux Terra (north) and Saragossa Terra (south) housing the large impact crater Engelier (504 km in diameter). Both images were obtained by the Cassini probe on 10 September 2007 (right) and 27 December 2004 (left). These two global images of Iapetus show the extreme brightness dichotomy on the surface of this peculiar Saturnian moon. The left - hand panel shows the moon's leading hemisphere and the right - hand panel shows the moon's trailing side. While low and mid latitudes of the leading side exhibit a surface almost as dark as charcoal,

PIX4625409

Saturn view of Enceladus - Illustration - Saturn from the surface of Enceladus - The planet Saturn seen from the ice surface of Enceladus. This is how Saturn may appear from the icy surface of Enceladus, one of Saturn's eight major satellites. At a distance of 148 thousand miles, Saturn would subtend an angle of 29o in Enceladus' sky, about the same width as 58 Earth moon's lined up side - by - side. While the surface of Enceladus is as reflective as new fallen snow, it would probably appear leaden about an hour before sunrise with a crescent Saturn as the only source of illumination. Like all of Saturn's major satellites, Enceladus always keeps the same side facing its host planet. From the perspective of a stationary observer on Enceladus, Saturn would always appear in the same position in the sky, cycling through its phases in about one - and - half Earth days. This image also illustrates a phenomenon only recently discovered by Nasa's Cassini probe: sunlight reflecting off of Satur

Saturn view of Enceladus - Illustration - Saturn from the surface of Enceladus - The planet Saturn seen from the ice surface of Enceladus. This is how Saturn may appear from the icy surface of Enceladus, one of Saturn's eight major satellites. At a distance of 148 thousand miles, Saturn would subtend an angle of 29o in Enceladus' sky, about the same width as 58 Earth moon's lined up side - by - side. While the surface of Enceladus is as reflective as new fallen snow, it would probably appear leaden about an hour before sunrise with a crescent Saturn as the only source of illumination. Like all of Saturn's major satellites, Enceladus always keeps the same side facing its host planet. From the perspective of a stationary observer on Enceladus, Saturn would always appear in the same position in the sky, cycling through its phases in about one - and - half Earth days. This image also illustrates a phenomenon only recently discovered by Nasa's Cassini probe: sunlight reflecting off of Satur

Walter B Myers

PIX4625835

Geyser on the Triton satellite - Illustration - Geyser on Triton - Illustration - Artist's view of geysers on the surface of Triton, the largest satellite in Neptune. Artist's impression of geysers on Triton surface, the largest moon of the planet Neptun

Geyser on the Triton satellite - Illustration - Geyser on Triton - Illustration - Artist's view of geysers on the surface of Triton, the largest satellite in Neptune. Artist's impression of geysers on Triton surface, the largest moon of the planet Neptun

Miller, Ron (b.1947)

PIX4624130

Riviere de Methane sur Titan - Artist's view - Titan methane river delta: Artist's view of the surface of the Titan satellite. The Cassini probe confirmed that lakes and rivers of methane or ethane exist on its surface

Riviere de Methane sur Titan - Artist's view - Titan methane river delta: Artist's view of the surface of the Titan satellite. The Cassini probe confirmed that lakes and rivers of methane or ethane exist on its surface

Miller, Ron (b.1947)

PIX4626180

Moon of about 22 days - A 22 day moon - The Moon seen on 27 June 2008, one day after the last quarter. Mosaic of 12 images. Mosaic of 12 images showing the Moon on June 27 2008, one day after the last quarter

Moon of about 22 days - A 22 day moon - The Moon seen on 27 June 2008, one day after the last quarter. Mosaic of 12 images. Mosaic of 12 images showing the Moon on June 27 2008, one day after the last quarter

PIX4575824

Moon before first quarter - Moon before first quarter - April 26 2004

Moon before first quarter - Moon before first quarter - April 26 2004

Sebastian Voltmer

PIX4575418

La Lune avant le premier quartier - Moon before first quarter - Mosaic of 21 images obtained on 28 June 2009, the eve of the first quarter. Mosaic of 21 images taken on June 28 2009, the day before the first quarter

La Lune avant le premier quartier - Moon before first quarter - Mosaic of 21 images obtained on 28 June 2009, the eve of the first quarter. Mosaic of 21 images taken on June 28 2009, the day before the first quarter

PIX4575553

Diagram of spacecraft artificial satellites orbiting Earth

Diagram of spacecraft artificial satellites orbiting Earth

DGA572709

Astronauts on Io - Illustration - Astronauts on Io - Artwork: Astronauts admire a volcanic eruption on Io

Astronauts on Io - Illustration - Astronauts on Io - Artwork: Astronauts admire a volcanic eruption on Io

Miller, Ron (b.1947)

PIX4614231

Snow Tempete on Titan - Illustration - Snow squall on Titan - An ethane snowstorm immobilizes astronauts exploring Titan's surface. A forbidding ethane snow squall immobilizes two explorers and their surface transportation. While there's been no evidence yet for the presence of snow on Titan, in September 2006 the Cassini orbiter detected what appears to be a massive ethane cloud surrounding Titan's north pole. This cloud may be snowing extremely cold - - near minus 300* F - - ethane snowflakes onto the surface below

Snow Tempete on Titan - Illustration - Snow squall on Titan - An ethane snowstorm immobilizes astronauts exploring Titan's surface. A forbidding ethane snow squall immobilizes two explorers and their surface transportation. While there's been no evidence yet for the presence of snow on Titan, in September 2006 the Cassini orbiter detected what appears to be a massive ethane cloud surrounding Titan's north pole. This cloud may be snowing extremely cold - - near minus 300* F - - ethane snowflakes onto the surface below

Walter B Myers

PIX4626099

Ice volcano on Titan - Artist view - Titan Ice Volcano

Ice volcano on Titan - Artist view - Titan Ice Volcano

Miller, Ron (b.1947)

PIX4626243

Astronauts on Titan - Illustration - Releasing a weather balloon on Titan - Astronauts make meteorological measurements on the surface of Titan. A titanian explorer prepares to release a weather balloon while another direct a flood lamp to illuminate the activity. On the left is a supply cart with a portable weather station, featuring an interactive control panel designed to accommodate hands enclosed in thick gloves. All exposed hardware would have to function at temperatures of minus 300* F and below. With an atmosphere 10 times denser than the Earth's, weather would be of keen interest to Titan's visitors. High in Titan's atmosphere wind velocities in excess of 400 mph have been detected. While not much is known about winds and weather at Triton's surface, terrain features resembling dune fields have been observed, suggesting surface winds have occurred at some locations. Fogs of methane gas would likely be present at the surface as well

Astronauts on Titan - Illustration - Releasing a weather balloon on Titan - Astronauts make meteorological measurements on the surface of Titan. A titanian explorer prepares to release a weather balloon while another direct a flood lamp to illuminate the activity. On the left is a supply cart with a portable weather station, featuring an interactive control panel designed to accommodate hands enclosed in thick gloves. All exposed hardware would have to function at temperatures of minus 300* F and below. With an atmosphere 10 times denser than the Earth's, weather would be of keen interest to Titan's visitors. High in Titan's atmosphere wind velocities in excess of 400 mph have been detected. While not much is known about winds and weather at Triton's surface, terrain features resembling dune fields have been observed, suggesting surface winds have occurred at some locations. Fogs of methane gas would likely be present at the surface as well

Walter B Myers

PIX4626113

Flood on Titan - Artist's view - Titan flash flood: Artist's view of the surface of the Titan satellite. Heavy methane rains can cause sudden flooding. Monsoon-like storms of methane rain have created a flash flood churning through a river channel on Saturn's moon Titan

Flood on Titan - Artist's view - Titan flash flood: Artist's view of the surface of the Titan satellite. Heavy methane rains can cause sudden flooding. Monsoon-like storms of methane rain have created a flash flood churning through a river channel on Saturn's moon Titan

Miller, Ron (b.1947)

PIX4626244

Dione, satellite of Saturn, seen by Cassini - Dione, moon of Saturn, as seen by Cassini - Mosaic of images obtained by the Cassini probe on 11 October 2005 at a distance of about 25,000 km from the satellite. As it departed its encounter with Saturn's moon Dione, Cassini sailed above an unreal landscape blasted by impacts. The rising Sun throws craters into sharp contrast and reveals steep crater walls. At the far right, a medium - sized crater is bisected by a fracture, revealing a cross section of the impact site. The seven clear - filter images in this mosaic were taken with the Cassini spacecraft narrow - angle camera on Oct. 11, 2005, at distances ranging from 21.650 to 25.580 kilometers (13,450 to 15,890 miles) from Dione and at a Sun - Dione - spacecraft, or phase, angle of 154 degrees. Resolution in the original images ranges from 126 to 154 meters (413 to 505 feet) per pixel. The images have been re - sized to have an image scale of about 100 meters (330 feet) per pixel. North

Dione, satellite of Saturn, seen by Cassini - Dione, moon of Saturn, as seen by Cassini - Mosaic of images obtained by the Cassini probe on 11 October 2005 at a distance of about 25,000 km from the satellite. As it departed its encounter with Saturn's moon Dione, Cassini sailed above an unreal landscape blasted by impacts. The rising Sun throws craters into sharp contrast and reveals steep crater walls. At the far right, a medium - sized crater is bisected by a fracture, revealing a cross section of the impact site. The seven clear - filter images in this mosaic were taken with the Cassini spacecraft narrow - angle camera on Oct. 11, 2005, at distances ranging from 21.650 to 25.580 kilometers (13,450 to 15,890 miles) from Dione and at a Sun - Dione - spacecraft, or phase, angle of 154 degrees. Resolution in the original images ranges from 126 to 154 meters (413 to 505 feet) per pixel. The images have been re - sized to have an image scale of about 100 meters (330 feet) per pixel. North

PIX4625507

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

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

Walter B Myers

PIX4625850

Cliffs sur Pluto - Artist view - Pluto Ice Cliffs - Artist view: In the sky, the satellite Charon

Cliffs sur Pluto - Artist view - Pluto Ice Cliffs - Artist view: In the sky, the satellite Charon

Miller, Ron (b.1947)

PIX4624669

Phobos and Mars - Illustration - Phobos and Mars - Illustration - Artist's view of Phobos, the largest of Mars's two satellites. This is how Mars and its tiny satellite Phobos might appear from a distance of about 100 miles from Phobos' surface. Phobos is over the low martian plains of Syrtis Major. Below the plains extending down to Mars' terminator and beyond is the heavily cratered Terra Sabaea. Clouds of water - ice crystals are forming at the terminator between light and dark. Looking more like a common potato than a celestial body, Phobos is actually the larger of Mars' two satellites, with a length of about 16 miles and about 11 miles across its smallest dimension. Phobos does not have enough mass for gravity to pull it into a uniform sphere like the larger satellites and planets in the Solar System. Phobos may be an asteroid long ago captured by Mars' gravity, orbiting a mere 5,800 miles above Mars' surface, making it the closest satellite to its host planet in the Solar System

Phobos and Mars - Illustration - Phobos and Mars - Illustration - Artist's view of Phobos, the largest of Mars's two satellites. This is how Mars and its tiny satellite Phobos might appear from a distance of about 100 miles from Phobos' surface. Phobos is over the low martian plains of Syrtis Major. Below the plains extending down to Mars' terminator and beyond is the heavily cratered Terra Sabaea. Clouds of water - ice crystals are forming at the terminator between light and dark. Looking more like a common potato than a celestial body, Phobos is actually the larger of Mars' two satellites, with a length of about 16 miles and about 11 miles across its smallest dimension. Phobos does not have enough mass for gravity to pull it into a uniform sphere like the larger satellites and planets in the Solar System. Phobos may be an asteroid long ago captured by Mars' gravity, orbiting a mere 5,800 miles above Mars' surface, making it the closest satellite to its host planet in the Solar System

Walter B Myers

PIX4616778

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 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 (top 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 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 (top 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

PIX4645420

Hubble space telescope: 4th maintenance mission 05/2009 - Hubble space telescope: fourth repair mission 05/2009 - Astronauts John Grunsfeld (left) and Andrew Feustel during the first extravehicular exit to maintain the Hubble space telescope (HST). 14 May 2009. What appears to be a number of astronauts, because of the shiny mirror - like surface of the temporarily - captured Hubble Space Telescope, is actually only two - - astronauts John Grunsfeld (left) and Andrew Feustel. The mission specialists are performing the first of five STS - 125 spacewalks and the first of three for this duo. 14 May 2009

Hubble space telescope: 4th maintenance mission 05/2009 - Hubble space telescope: fourth repair mission 05/2009 - Astronauts John Grunsfeld (left) and Andrew Feustel during the first extravehicular exit to maintain the Hubble space telescope (HST). 14 May 2009. What appears to be a number of astronauts, because of the shiny mirror - like surface of the temporarily - captured Hubble Space Telescope, is actually only two - - astronauts John Grunsfeld (left) and Andrew Feustel. The mission specialists are performing the first of five STS - 125 spacewalks and the first of three for this duo. 14 May 2009

PIX4645434

Astronauts explore Callisto - Illustration: Astronauts explore the erodes peaks of Callisto - Astronauts among eroded peaks of its moon Callisto - Several square miles of the surface is dominated by towering spires of ice, 260 to 330 feet (80 to 100 m) tall. While composed mostly of ice, the spires also contain some darker dust, which absorbs heat from the Sun. As the ice erodes, the dark material apparently slides down and collects in low-lying areas. As the ice continues to vaporize, the dark material accumulates and the erosion process accelerates

Astronauts explore Callisto - Illustration: Astronauts explore the erodes peaks of Callisto - Astronauts among eroded peaks of its moon Callisto - Several square miles of the surface is dominated by towering spires of ice, 260 to 330 feet (80 to 100 m) tall. While composed mostly of ice, the spires also contain some darker dust, which absorbs heat from the Sun. As the ice erodes, the dark material apparently slides down and collects in low-lying areas. As the ice continues to vaporize, the dark material accumulates and the erosion process accelerates

Miller, Ron (b.1947)

PIX4614107

Mimas, satellite of Saturn, seen by the Cassini probe on 13/02/2010 - Saturn's moon Mimas seen by Cassini spacecraft - February 13 2010 - The Mimas satellite photographed by the Cassini probe on 13 February 2010 has a distance of 50,000 km from the satellite. Mimas is about 400 km in diameter. At the right centre is the large impact crater Herschel, 130 km wide. In this view captured by Nasa's Cassini spacecraft on its closest - ever flyby of Saturn's moon Mimas, large Herschel Crater dominates Mimas, making the moon look like the Death Star in the movie “” Star Wars.”” Herschel Crater is 130 kilometers, or 80 miles, wide and covers most of the right of this image. Cassini came within about 9,500 kilometers (5,900 miles) of Mimas on Feb. 13, 2010.This mosaic was created from six images taken that day in visible light with Cassini's narrow - angle camera on Feb. 13, 2010. The images were re - projected into an orthographic map projection. This view looks toward the area between the regi

Mimas, satellite of Saturn, seen by the Cassini probe on 13/02/2010 - Saturn's moon Mimas seen by Cassini spacecraft - February 13 2010 - The Mimas satellite photographed by the Cassini probe on 13 February 2010 has a distance of 50,000 km from the satellite. Mimas is about 400 km in diameter. At the right centre is the large impact crater Herschel, 130 km wide. In this view captured by Nasa's Cassini spacecraft on its closest - ever flyby of Saturn's moon Mimas, large Herschel Crater dominates Mimas, making the moon look like the Death Star in the movie “” Star Wars.”” Herschel Crater is 130 kilometers, or 80 miles, wide and covers most of the right of this image. Cassini came within about 9,500 kilometers (5,900 miles) of Mimas on Feb. 13, 2010.This mosaic was created from six images taken that day in visible light with Cassini's narrow - angle camera on Feb. 13, 2010. The images were re - projected into an orthographic map projection. This view looks toward the area between the regi

PIX4625548

Mimas, satellite of Saturn, seen by the Cassini probe on 13/02/2010 - Saturn's moon Mimas seen by Cassini spacecraft - February 13 2010 - The Mimas satellite seen in false colours by the Cassini probe on 13 February 2010 has a distance of 16,000 km from the satellite. Color differences reveal differences in terrain nature. Mimas is about 400 km in diameter. At the right centre is the large impact crater Herschel, 130 km wide. Subtle color differences on Saturn's moon Mimas are apparent in this false - color view of Herschel Crater captured by Nasa's Cassini spacecraft during its closest - ever flyby of that moon. The image shows terrain - dependent color variations, particularly the contrast between the bluish materials in and around Herschel Crater (130 kilometers, or 80 miles, wide) and the greenish cast on older, more heavily cratered terrain elsewhere. The origin of the color differences is not yet understood, but may be caused by subtle differences in the surface composition betwe

Mimas, satellite of Saturn, seen by the Cassini probe on 13/02/2010 - Saturn's moon Mimas seen by Cassini spacecraft - February 13 2010 - The Mimas satellite seen in false colours by the Cassini probe on 13 February 2010 has a distance of 16,000 km from the satellite. Color differences reveal differences in terrain nature. Mimas is about 400 km in diameter. At the right centre is the large impact crater Herschel, 130 km wide. Subtle color differences on Saturn's moon Mimas are apparent in this false - color view of Herschel Crater captured by Nasa's Cassini spacecraft during its closest - ever flyby of that moon. The image shows terrain - dependent color variations, particularly the contrast between the bluish materials in and around Herschel Crater (130 kilometers, or 80 miles, wide) and the greenish cast on older, more heavily cratered terrain elsewhere. The origin of the color differences is not yet understood, but may be caused by subtle differences in the surface composition betwe

PIX4625563

Pluto and Charon - Vue d'artiste - Pluto and Charon - Artist view - Vue d'artiste de Pluto et de son satellite Charon. Pluto and its moon Charon

Pluto and Charon - Vue d'artiste - Pluto and Charon - Artist view - Vue d'artiste de Pluto et de son satellite Charon. Pluto and its moon Charon

Miller, Ron (b.1947)

PIX4624445

Surface of Titan seen by Huygens - Illustration - Titan Emerges - Artist's view of the surface of Titan as it appeared at the European probe Huygens on January 14, 2005 when it descended, about 20 km from the ground. This is how the surface of Titan may have appeared to the European Space Agency's Huygens probe when it emerged from the satellite's ubiquitous hydrocarbon haze about 12 miles above Titan's surface. Huygens made its historic decent on 14 January 2005, making it the first man - made object to reach the surface of the satellite of another planet

Surface of Titan seen by Huygens - Illustration - Titan Emerges - Artist's view of the surface of Titan as it appeared at the European probe Huygens on January 14, 2005 when it descended, about 20 km from the ground. This is how the surface of Titan may have appeared to the European Space Agency's Huygens probe when it emerged from the satellite's ubiquitous hydrocarbon haze about 12 miles above Titan's surface. Huygens made its historic decent on 14 January 2005, making it the first man - made object to reach the surface of the satellite of another planet

Walter B Myers

PIX4626018

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 (foreground) 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 (foreground), 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 (foreground) 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 (foreground), 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

PIX4645407

Satellite Planck - Illustration - Artist's view of the European satellite Planck. This satellite measures temperature fluctuations in the fossil radiation of the primordial universe. Artist view of Esa's Planck observatory. Planck is the first european mission to study the relic radiation from the Big Bang. Ever since the detection of small fluctuations in the temperature of this radiation, called Cosmic Microwave Background, astronomers have used the fluctuations to understand both the origin of the Universe and the formation of galaxies

Satellite Planck - Illustration - Artist's view of the European satellite Planck. This satellite measures temperature fluctuations in the fossil radiation of the primordial universe. Artist view of Esa's Planck observatory. Planck is the first european mission to study the relic radiation from the Big Bang. Ever since the detection of small fluctuations in the temperature of this radiation, called Cosmic Microwave Background, astronomers have used the fluctuations to understand both the origin of the Universe and the formation of galaxies

D. Ducros

PIX4646030

Huygens probe en route to Titan - The Huygens probe entering Titan's atmosphere - Artist's view of the European Huygens probe above Titan. Huygens landed on the Titan satellite on 14 January 2005. The Cassini-Huygens probe was launched on 15 October 1997 and has been placed in orbit around Saturn since 1 July 2004. This artist's conception of the Cassini orbiter shows the Huygens probe separating to enter Titan's atmosphere. After separation, the probe drifts for about three weeks until reaching its destination. Huygens landed on Titan surface on January 14, 2005

Huygens probe en route to Titan - The Huygens probe entering Titan's atmosphere - Artist's view of the European Huygens probe above Titan. Huygens landed on the Titan satellite on 14 January 2005. The Cassini-Huygens probe was launched on 15 October 1997 and has been placed in orbit around Saturn since 1 July 2004. This artist's conception of the Cassini orbiter shows the Huygens probe separating to enter Titan's atmosphere. After separation, the probe drifts for about three weeks until reaching its destination. Huygens landed on Titan surface on January 14, 2005

D. Ducros

PIX4606082

Artist's view of the New Horizons probe near Pluto - The New Horizons spacecraft near Pluto - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. Artist's concept of the New Horizons spacecraft as it approaches Pluto and its largest moon, Charon, in July 2015. The craft's miniature cameras, radio science experiment, ultraviolet and infrared spectrometers and space plasma experiments will characterize the global geology and geomorphology of Pluto and Charon, map their surface compositions and temperatures, and examine Pluto's atmosphere in detail. The spacecraft's most prominent design feature is a nearly 7 - foot (2.1 - meter) dish antenna, through which it will communicate with Earth from as far as 4.7 billion miles (7.5 billion kilometers) away

Artist's view of the New Horizons probe near Pluto - The New Horizons spacecraft near Pluto - Artist's view of the New Horizons probe near Pluto and its largest satellite Charon. The New Horizons probe was launched on 19 January 2006 to Jupiter, then Pluto and Charon, which it will reach in 2015 and Kuiper's objects in 2020. Artist's concept of the New Horizons spacecraft as it approaches Pluto and its largest moon, Charon, in July 2015. The craft's miniature cameras, radio science experiment, ultraviolet and infrared spectrometers and space plasma experiments will characterize the global geology and geomorphology of Pluto and Charon, map their surface compositions and temperatures, and examine Pluto's atmosphere in detail. The spacecraft's most prominent design feature is a nearly 7 - foot (2.1 - meter) dish antenna, through which it will communicate with Earth from as far as 4.7 billion miles (7.5 billion kilometers) away

PIX4607290

Geysers sur Enceladus - Artist view - Enceladus' ice geysers - Artist view - Artist view of ice jets on the surface of the Enceladus satellite. It would appear that these particles feed the E-ring of Saturn, the origin of which was previously unknown. Geysers erupt from the so called Tiger Stripes of Encaledus, one of Saturn's moons. Artist view

Geysers sur Enceladus - Artist view - Enceladus' ice geysers - Artist view - Artist view of ice jets on the surface of the Enceladus satellite. It would appear that these particles feed the E-ring of Saturn, the origin of which was previously unknown. Geysers erupt from the so called Tiger Stripes of Encaledus, one of Saturn's moons. Artist view

Steven Hobbs

PIX4625825

Dramatic changes have been observed at the Eyjafjallajökull volcano in Iceland. On May 2, 2010, lava flow had been previously reported. Satellite image.

Dramatic changes have been observed at the Eyjafjallajökull volcano in Iceland. On May 2, 2010, lava flow had been previously reported. Satellite image.

UIG866613

This color composite of Io was acquired by Galileo during its sixth orbit.

This color composite of Io was acquired by Galileo during its sixth orbit.

UIG867435

Occultation of Saturn by the Moon from 03/11/2001 - Moon is occulting Saturn. November 3 2001 - View with a C8 telescope and Televue-Barlow (2,5x

Occultation of Saturn by the Moon from 03/11/2001 - Moon is occulting Saturn. November 3 2001 - View with a C8 telescope and Televue-Barlow (2,5x

T. Edelmann

PIX4588186

Occultation of Saturn by the Moon from 03/11/2001 - Moon is occulting Saturn. November 3 2001 - Sequence of images showing the passage of the Moon in front of Saturn

Occultation of Saturn by the Moon from 03/11/2001 - Moon is occulting Saturn. November 3 2001 - Sequence of images showing the passage of the Moon in front of Saturn

Sebastian Voltmer

PIX4588174

The Visible Face of the Moon- Artist's View - The nearside of the Moon. Artwork

The Visible Face of the Moon- Artist's View - The nearside of the Moon. Artwork

L. Bret

PIX4614499

Mimas, satellite of Saturn, seen by the Cassini probe on 13/02/2010 - Saturn's moon Mimas seen by Cassini spacecraft - February 13 2010 - The Mimas satellite photographed by the Cassini probe on 13 February 2010 has a distance of 30,000 km from the satellite. Mimas is about 400 km in diameter. In the centre, the large impact crater Herschel, 130 km wide. This mosaic, created from images taken by Nasa's Cassini spacecraft during its closest flyby of Saturn's moon Mimas, looks straight at the moon's huge Herschel Crater and reveals new insights about the moon's surface. Bright - walled craters, with floors and surroundings about 20 percent darker than the steep crater walls, are notable in this view. Mimas 'original surface, like the surfaces of most of the other major Saturnian moons without atmospheres, is not pure ice but contains some dark impurities. Herschel Crater (130 kilometers, 80 miles wide) and some of the smaller craters seen in this mosaic show relatively dark markings alon

Mimas, satellite of Saturn, seen by the Cassini probe on 13/02/2010 - Saturn's moon Mimas seen by Cassini spacecraft - February 13 2010 - The Mimas satellite photographed by the Cassini probe on 13 February 2010 has a distance of 30,000 km from the satellite. Mimas is about 400 km in diameter. In the centre, the large impact crater Herschel, 130 km wide. This mosaic, created from images taken by Nasa's Cassini spacecraft during its closest flyby of Saturn's moon Mimas, looks straight at the moon's huge Herschel Crater and reveals new insights about the moon's surface. Bright - walled craters, with floors and surroundings about 20 percent darker than the steep crater walls, are notable in this view. Mimas 'original surface, like the surfaces of most of the other major Saturnian moons without atmospheres, is not pure ice but contains some dark impurities. Herschel Crater (130 kilometers, 80 miles wide) and some of the smaller craters seen in this mosaic show relatively dark markings alon

PIX4625545

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