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Add Image to Favorite List 2001-07-30 Mars Viking
 Camera 1
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This image was taken by NASA's Viking Lander 1 at Chryse Planitia on Mars. The lander can be seen in the foreground looking toward the rugged martian terrain.
PIA03166:
Afternoon on Chryse Planitia - Viking Lander 1 Camera 2 Mosaic
Full Resolution:     TIFF (7.736 MB)     JPEG (1.24 MB)
Add Image to Favorite List 2001-10-13 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a large dust-raising event that occurred on July 8, 2001, as cold, raging winds blew off the frozen south polar cap and rushed toward the network of troughs known as Labyrinthus Noctis near the martian equator.
PIA03168:
Snapshot of Southern Spring Dust Storm Activity
Full Resolution:     TIFF (1.977 MB)     JPEG (192.2 kB)
Add Image to Favorite List 2001-10-13 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows the martian south polar region, acquired on September 12, 2001. The bright area at the center of the image is the permanent south polar cap.
PIA03169:
Springtime on the Martian South Polar Cap
Full Resolution:     TIFF (954.6 kB)     JPEG (34.89 kB)
Add Image to Favorite List 2001-10-13 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows that although dust storms occur year-round on Mars, they often occur in greater numbers during certain seasons.
PIA03170:
The 2001 Great Dust Storms - Hellas/Syrtis Major
Full Resolution:     TIFF (11.1 MB)     JPEG (376.4 kB)
Add Image to Favorite List 2001-10-13 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a general pattern of regional storm centers beneath an ever-spreading veil of stratospheric dust over the Daedalia/Claritas/Syria regions on Mars.
PIA03171:
The 2001 Great Dust Storms - Tharsis
Full Resolution:     TIFF (11.29 MB)     JPEG (378.3 kB)
Add Image to Favorite List 2001-10-13 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows the Daedalia/Claritas/Syria storm dust plumes on Mars revealing a general pattern of regional storm centers beneath an ever-spreading veil of stratospheric dust.
PIA03172:
The 2001 Great Dust Storms - Daedalia/Claritas/Syria Dust Plumes
Full Resolution:     TIFF (743.2 kB)     JPEG (120.8 kB)
Add Image to Favorite List 2001-10-13 Mars Hubble Space Telescope
 WFPC2
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Two dramatically different faces of our Red Planet neighbor appear in these comparison images from NASA's Hubble Space Telescope, showing how a global dust storm engulfed Mars with the onset of Martian spring in the Southern Hemisphere.
PIA03173:
Scientists Track "Perfect Storm" on Mars
Full Resolution:     TIFF (7.452 MB)     JPEG (168.7 kB)
Add Image to Favorite List 2001-10-26 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows fractures and pits in the Utopia Plains of Mars.
PIA03174:
Fractures/Pits in Northern Plains (Utopia Plains: 44.9 N, 274.7 W)
Full Resolution:     TIFF (349.4 kB)     JPEG (190.4 kB)
Add Image to Favorite List 2001-10-26 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows shear striations, dark dunes banked up against the toe of the slide and over-riding light-toned ripples and boulders on the toe of Ganges Chasma on Mars.
PIA03175:
Toe of Ganges Chasma Landslide ( 8.0 S, 44.4W)
Full Resolution:     TIFF (256.8 kB)     JPEG (129.7 kB)
Add Image to Favorite List 2001-10-26 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows erosional streaks on dunes Herschel Crater on Mars which means that the dunes are indurated (cemented).
PIA03176:
Dunes in Herschel Crater (Herschel Crater: 15.7 S, 228.8 W)
Full Resolution:     TIFF (276.1 kB)     JPEG (126.1 kB)
Add Image to Favorite List 2001-10-31 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows layered rock outcrops reaching deep down into the martian crust in the walls of the Valles Marineris.
PIA03177:
Ancient Layered Rocks in Schiaparelli Crater
Full Resolution:     TIFF (250.6 kB)     JPEG (116 kB)
Add Image to Favorite List 2001-11-09 Mars 2001 Mars Odyssey
 THEMIS
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This thermal infrared image was acquired by NASA's Mars Odyssey spacecraft on October 30, 2001, as the spacecraft orbited Mars on its ninth revolution around the planet.
PIA03459:
First THEMIS Image of Mars
Full Resolution:     TIFF (3.93 MB)     JPEG (262.9 kB)
Add Image to Favorite List 2001-11-13 Mars 2001 Mars Odyssey
 THEMIS
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The circular feature seen in blue is the extremely cold martian south polar carbon dioxide ice cap as seen by NASA's Mars Odyssey spacecraft.
PIA03461:
First THEMIS Infrared and Visible Images of Mars
Full Resolution:     TIFF (4.385 MB)     JPEG (645.9 kB)
Add Image to Favorite List 2001-11-21 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a valley running diagonally, the floor of which is covered by windblown dunes. The slopes on either side of the valley show dark streaks of debris that have slid down from the surrounding ridges in Cyane Sulci on Mars.
PIA03178:
MOC's 100,000th Image
Full Resolution:     TIFF (183.5 kB)     JPEG (44.18 kB)
Add Image to Favorite List 2001-12-11 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a landscape of Mars' south polar residual cap dominated by layered, frozen carbon dioxide ('dry ice') that has been eroded into a variety of pits, troughs, buttes, and mesas.
PIA03180:
MOC View of the Martian South Polar Residual Cap
Full Resolution:     TIFF (16.51 MB)     JPEG (1.335 MB)
Add Image to Favorite List 2001-12-11 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows four pictures of pits formed in frozen carbon dioxide in Mars' polar cap.
PIA03179:
MOC Observes Changes in the South Polar Cap: Evidence for Recent Climate Change on Mars
Full Resolution:     TIFF (515.7 kB)     JPEG (117.9 kB)
Add Image to Favorite List 2002-02-16 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows airbrushed shaded relief maps, controlled photomosaics, and in a few cases albedo (shading) maps, mostly assembled from Mariner 9 survey images from Mars.
PIA03467:
The MGS MOC Wide Angle Map of Mars
Full Resolution:     TIFF (1.242 MB)     JPEG (216.9 kB)
Add Image to Favorite List 2002-02-16 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows Mars' polar cap with two types of layers, a stack of light-toned, nearly uniformly-bedded layers at the top, and a stack of darker-toned beds that form shelves and benches at the bottom.
PIA03468:
MGS MOC Extended Mission View of North Polar Layers
Full Resolution:     TIFF (2.44 MB)     JPEG (343.1 kB)
Add Image to Favorite List 2002-02-16 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a small meteorite impact crater in northern Tharsis.
PIA03469:
Fresh Impact Crater and Rays in Tharsis
Full Resolution:     TIFF (7.301 MB)     JPEG (828.3 kB)
Add Image to Favorite List 2002-02-16 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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This global map of Mars, based on data from NASA's Mars Odyssey, shows estimates for amounts of high-energy-particle cosmic radiation reaching the surface, a serious health concern for any future human exploration of the planet.
PIA03470:
Arsia Mons Spiral Cloud
Full Resolution:     TIFF (1.393 MB)     JPEG (36.53 kB)
Add Image to Favorite List 2002-02-16 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows Mars' south polar cap exhibits an array of bizarre layers, arcuate scarps, and 'swiss cheese' holes and pits.
PIA03471:
Changes in South Polar Carbon Dioxide Ice Cap
Full Resolution:     TIFF (1.796 MB)     JPEG (306 kB)
Add Image to Favorite List 2002-02-16 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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This anaglyph from NASA's Mars Global Surveyor shows eroded, pitted, light-toned layer outcrops in Iani Chaos. 3D glasses are necessary to view this image.
PIA03472:
Stereo View of Layer Outcrops in Iani Chaos
Full Resolution:     TIFF (6.625 MB)     JPEG (428.8 kB)
Add Image to Favorite List 2002-03-01 Mars 2001 Mars Odyssey
 Mars Radiation Experiment
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This global map of Mars, based on data from NASA's Mars Odyssey, shows estimates for amounts of high-energy-particle cosmic radiation reaching the surface, a serious health concern for any future human exploration of the planet.
PIA03479:
Estimated Radiation on Mars, Hits per Cell Nucleus
Full Resolution:     TIFF (9.078 MB)     JPEG (628.5 kB)
Add Image to Favorite List 2002-03-01 Mars 2001 Mars Odyssey
 Mars Radiation Experiment
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This global map of Mars, based on data from NASA's Mars Odyssey, shows the estimated radiation dosages from cosmic rays reaching the surface, a serious health concern for any future human exploration of the planet.
PIA03480:
Estimated Radiation Dosage on Mars
Full Resolution:     TIFF (10.13 MB)     JPEG (625.5 kB)
Add Image to Favorite List 2002-03-01 Mars 2001 Mars Odyssey
 THEMIS
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This nighttime thermal infrared image, taken by NASA's Mars Odyssey spacecraft, shows differences in temperature that are due to differences in the abundance of rocks, sand and dust on the surface.
PIA03482:
Channel at Night in Thermal Infrared
Full Resolution:     TIFF (223.6 kB)     JPEG (54.94 kB)
Add Image to Favorite List 2002-03-01 Mars 2001 Mars Odyssey
 THEMIS
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This 300-kilometer (186-mile) long daytime infrared image of Terra Sirenum, taken by NASA's Mars Odyssey spacecraft, displays a wide variety of geologic features. The mottled floor and rim of Koval'skiy Crater is seen at the left (north) of the image.
PIA03483:
Daytime Infrared, Terra Sirenum
Full Resolution:     TIFF (527.2 kB)     JPEG (165.6 kB)
Add Image to Favorite List 2002-03-01 Mars 2001 Mars Odyssey
 THEMIS
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This is the first high-resolution color infrared image taken of Mars. The image was constructed using three of the ten infrared filters on the thermal emission imaging system of NASA's Mars Odyssey spacecraft.
PIA03484:
Color Infrared, Terra Sirenum
Full Resolution:     TIFF (780.3 kB)     JPEG (60.56 kB)
Add Image to Favorite List 2002-03-01 Mars 2001 Mars Odyssey
 THEMIS
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This nighttime infrared image, taken by NASA's Mars Odyssey spacecraft, captures a massively disrupted region on Mars called Hydaspis Chaos, which is located near the equator at two degrees north, 29 degrees west.
PIA03485:
Hydaspis Chaos in Nighttime Infrared
Full Resolution:     TIFF (375.6 kB)     JPEG (65.8 kB)
Add Image to Favorite List 2002-03-01 Mars 2001 Mars Odyssey
 Gamma Ray Spectrometer Suite
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In this image taken by NASA's Mars Odyssey spacecraft during its first week of mapping, soil enriched in hydrogen is indicated by the deep blue colors, which show a low intensity of epithermal neutrons.
PIA03486:
Global Neutron View
Full Resolution:     TIFF (579.3 kB)     JPEG (80.85 kB)
Add Image to Favorite List 2002-03-01 Mars 2001 Mars Odyssey
 Gamma Ray Spectrometer Suite
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The deep blue colors on this map of the south pole of Mars from NASA's Mars Odyssey spacecraft show where a low intensity of epithermal neutrons is found.
PIA03487:
South Pole Neutron View
Full Resolution:     TIFF (581.8 kB)     JPEG (80.74 kB)
Add Image to Favorite List 2002-03-01 Mars 2001 Mars Odyssey
 Gamma Ray Spectrometer Suite
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NASA's Mars Odyssey spacecraft produced this high-energy neutron detector map of neutrons in Mars' southern hemisphere. The blue region around the south pole indicates a high content of hydrogen in the upper 2 to 3 meters (7 to 10 feet) of the surface.
PIA03488:
Southern Hemisphere Neutron Map
Full Resolution:     TIFF (90.83 kB)     JPEG (131.3 kB)
Add Image to Favorite List 2002-03-05 Mars 2001 Mars Odyssey
 THEMIS
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This visible-light image, taken by the thermal emission imaging system's camera on NASA's Mars Odyssey spacecraft, shows the highly fractured, faulted and deformed Acheron Fossae region of Mars.
PIA03481:
Acheron Fossae in Visible Light
Full Resolution:     TIFF (391.5 kB)     JPEG (62.4 kB)
Add Image to Favorite List 2002-03-06 Mars 2001 Mars Odyssey
 Gamma Ray Spectrometer Suite
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A high content of hydrogen in Mars' southern polar region is apparent in this global map of high-energy neutrons measured by NASA's Mars Odyssey spacecraft.
PIA03489:
Global Map, High-Energy Neutrons
Full Resolution:     TIFF (88.48 kB)     JPEG (141.2 kB)
Add Image to Favorite List 2002-04-23 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows the martian volcanoes, Ceraunius Tholus (lower) and Uranius Tholus (upper). The presence of impact craters on these volcanoes, particularly on Uranius Tholus indicates that they are quite ancient and are not active today
PIA03750:
Volcanoes Ceraunius Tholus and Uranius Tholus
Full Resolution:     TIFF (5.031 MB)     JPEG (269.5 kB)
Add Image to Favorite List 2002-04-23 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a field of dark sand dunes on the floor of Kaiser Crater in southeastern Noachis Terra on Mars.
PIA03751:
Sand Dunes in Kaiser Crater
Full Resolution:     TIFF (796.8 kB)     JPEG (130.2 kB)
Add Image to Favorite List 2002-04-23 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a region of flat-topped mesas on Mars separated by valleys or troughs of similar depth and width. Valley floors are covered by a material showing thin cracks and collapse pits aligned along some of these cracks.
PIA03752:
Mesas and troughs in Nilosyrtis region, Mars
Full Resolution:     TIFF (1.979 MB)     JPEG (346.3 kB)
Add Image to Favorite List 2002-04-23 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows gullies emergent from a specific layer in the wall of an ancient crater within a much larger crater, Kaiser, on Mars.
PIA03753:
Gullies and Streaks on Crater wall Kaiser
Full Resolution:     TIFF (730.2 kB)     JPEG (133 kB)
Add Image to Favorite List 2002-04-23 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows Newton Crater on Mars and its surrounding terrain exhibiting many examples of gullies on the walls of craters and troughs.
PIA03754:
Gullies and Layers in Crater Wall in Newton
Full Resolution:     TIFF (1.134 MB)     JPEG (227.8 kB)
Add Image to Favorite List 2002-04-23 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows examples of what Mars looks like in late northern summer, which is also late southern winter. At this time of year, the south polar cap is very large.
PIA03755:
Global Views of Mars in late Northern Summer
Full Resolution:     TIFF (2.993 MB)     JPEG (129.4 kB)
Add Image to Favorite List 2002-04-25 Mars 2001 Mars Odyssey
 THEMIS
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This image from NASA's Mars Odyssey spacecraft shows a sinuous valley network channel with sharp bends cutting across the cratered highlands of the southern hemisphere of Mars.
PIA03756:
Nirgal Vallis (Released 27 March 2002)
Full Resolution:     TIFF (1.766 MB)     JPEG (501.7 kB)
Add Image to Favorite List 2002-05-07 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows streamers of dark sand coming from outcrops of the lower, dark-toned unit on Mars' polar cap.
PIA03777:
Erosion of North Polar Layers and Genesis of nearby Sand Dunes
Full Resolution:     TIFF (996.6 kB)     JPEG (135.8 kB)
Add Image to Favorite List 2002-05-07 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor captured this image of the Mars Terra Meridiana region showing layered material exposed in cliffs, buttes, and mesas that in some ways resemble the rock outcrops of northern Arizona and southeastern Utah in North America.
PIA03778:
Northern Terra Meridiani's "Monument Valley"
Full Resolution:     TIFF (8.969 MB)     JPEG (467.3 kB)
Add Image to Favorite List 2002-05-07 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows Nirgal Vallis, a narrow valley system across the martian surface near 28°S latitude, north of the large basin, Argyre. The floor of the valley system is largely covered with light-toned dunes and ripples.
PIA03779:
Nirgal Vallis and its Windblown Dunes
Full Resolution:     TIFF (1.199 MB)     JPEG (215.2 kB)
Add Image to Favorite List 2002-05-07 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows the Tharsis volcanic region (left), Valles Marineris chasms (right) and the late winter south polar cap (bottom).
PIA03780:
Nirgal Vallis and its Windblown Dunes
Full Resolution:     TIFF (8.546 MB)     JPEG (373.6 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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This scene shows gullies superposed on the inner walls of four large craters. Most of these gullies, imaged by NASA's Mars Odyssey spacecraft, appear to emanate from one or two specific layers along the inner crater's entire circumference.
PIA03757:
Gullied Craters 41°S
Full Resolution:     TIFF (1.722 MB)     JPEG (400.2 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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These layered deposits are located on the floor of a large canyon called Ganges Chasma which is a part of the Valles Marineris in this image captured by NASA's 2001 Mars Odyssey spacecraft.
PIA03758:
Layered Deposits on the floor of Ganges Chasma
Full Resolution:     TIFF (1.774 MB)     JPEG (456.8 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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This image from NASA's Mars Odyssey spacecraft shows a spectacular landslide along a portion of the southern wall of Ganges Chasma within Valles Marineris. Landslides have very characteristic morphologies on Earth, which they also display on Mars.
PIA03759:
Ganges Chasma Landslide
Full Resolution:     TIFF (1.716 MB)     JPEG (465.6 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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This image, captured by NASA's 2001 Mars Odyssey spacecraft, shows that this portion of the rim of Henry Crater has numerous dark streaks located on the slopes of the inner crater wall.
PIA03760:
Rim of Henry Crater
Full Resolution:     TIFF (1.495 MB)     JPEG (322.6 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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This lunar-like scene, imaged by NASA's Mars Odyssey spacecraft, occurs along the southeastern rim of the Isidis Planitia basin, an ancient impact crater some 1200 km across.
PIA03761:
Isidis Rim
Full Resolution:     TIFF (2.351 MB)     JPEG (567.3 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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This image, taken by NASA's Mars Odyssey spacecraft, shows a cratered highland region called Arabia Terra. The center right side of the image shows a branch of the valley network Naktong Vallis cutting into the eastern rim of an unnamed crater.
PIA03762:
Naktong Valles
Full Resolution:     TIFF (1.8 MB)     JPEG (496.3 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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Olympus Mons, imaged here by NASA's Mars Odyssey spacecraft, stands 26 km above the surrounding plains, which is three times taller than Mt. Everest, and is the tallest volcano in the solar system.
PIA03763:
Olympus Mons Lava Flows
Full Resolution:     TIFF (1.84 MB)     JPEG (623.5 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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This image from NASA's Mars Odyssey spacecraft shows the cratered highlands of Terra Sirenum in Mars' southern hemisphere. Near the center of the image running from left to right one can see long parallel to semi-parallel troughs called graben.
PIA03764:
Gorgonum Chaos
Full Resolution:     TIFF (1.874 MB)     JPEG (519.7 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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This image from NASA's Mars Odyssey spacecraft captures two channels (Nirgal Vallis is the smaller sinuous channel on the left and Uzboi Vallis is the larger channel located in the lower right) and Luki Crater located in the upper right.
PIA03765:
Uzboi Vallis, Nirgal Vallis, and Luki Crater
Full Resolution:     TIFF (1.812 MB)     JPEG (449.6 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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This image from NASA's Mars Odyssey shows a Martian geologic deposit known as the Medusae Fossae Formation (the raised plateau in the upper two-thirds of the image), a soft, easily eroded deposit that extends for nearly 1,000 km along the equator of Mars.
PIA03766:
Medusae Fossae Formation
Full Resolution:     TIFF (1.771 MB)     JPEG (473.2 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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This scene from NASA's Mars Odyssey shows the contrasting morphologies of the relatively rough highland terrain (in the lower portion of the image) and the relatively smooth materials (at top) of the southern rim of the Isidis Planitia basin.
PIA03767:
Southern rim of Isidis Planitia basin
Full Resolution:     TIFF (1.499 MB)     JPEG (306.7 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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The so-called 'Face on Mars' can be seen slightly above center and to the right in this NASA Mars Odyssey image. This 3-km long knob was first imaged by NASA's Viking spacecraft in the 1970's and to some resembled a face carved into the rocks of Mars.
PIA03768:
The So-Called "Face on Mars"
Full Resolution:     TIFF (2.651 MB)     JPEG (266.6 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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The eastern floor of Holden Crater, which is located in region of the southern hemisphere called Noachis Terra and is 154 km in diameter, is seen in this image from NASA's Mars Odyssey spacecraft.
PIA03769:
Eastern Floor of Holden Crater
Full Resolution:     TIFF (1.993 MB)     JPEG (482.5 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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Remarkable variations in the erosion of the Medusae Fossae Formation are shown in this scene from NASA's Mars Odyssey spacecraft. In this region, the surface has been eroded by the wind into a series of linear ridges called yardangs.
PIA03770:
Medusae Fossae Formation
Full Resolution:     TIFF (2.158 MB)     JPEG (725.6 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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This NASA Mars Odyssey image shows the intersection of Holden Crater with Uzboi Valles. This region of Mars contains a number of features that could be related to liquid water on the surface in the Martian past.
PIA03771:
Holden Crater/Uzboi Valles
Full Resolution:     TIFF (1.853 MB)     JPEG (472.2 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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Bosporus Planum, seen in this image from NASA's Mars Odyssey spacecraft, is located in a region of smooth plains that appear to have formed from lava flows.
PIA03772:
Bosporus Planum
Full Resolution:     TIFF (1.78 MB)     JPEG (526.2 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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White Rock' is the unofficial name for this unusual landform which was first observed during NASA's Mariner 9 mission in the early 1970's and is now shown here in an image from NASA's Mars Odyssey spacecraft.
PIA03773:
White Rock
Full Resolution:     TIFF (1.416 MB)     JPEG (326.6 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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This NASA Mars Odyssey image shows a portion of a volcano called Alba Patera. This region has many unique valley features that at first glance look much like the patterns formed by rivers and tributaries on Earth, but are actually quite discontinuous.
PIA03774:
Alba Patera
Full Resolution:     TIFF (1.249 MB)     JPEG (390.9 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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Splotchy water ice clouds obscure the surface in this image from NASA's Mars Odyssey spacecraft, however, most of Mars was in a relatively clear period when this image was acquired.
PIA03775:
A Cloudy Day on Mars
Full Resolution:     TIFF (1.825 MB)     JPEG (591.9 kB)
Add Image to Favorite List 2002-05-21 Mars 2001 Mars Odyssey
 THEMIS
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The Cerberus feature, imaged here by NASA's Mars Odyssey, is a dark region at the southeastern edge of the huge Elysium Mons volcanic complex that was visible to early astronomers because it was a distinctive dark spot on a large bright region of Mars.
PIA03776:
Cerberus
Full Resolution:     TIFF (1.795 MB)     JPEG (503.7 kB)
Add Image to Favorite List 2002-05-23 Mars 2001 Mars Odyssey
 THEMIS
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This NASA Mars Odyssey image shows a region in northern Arabia Terra where knobby or 'scabby' plains units that mantle and modify a pre-existing cratered surface dominate the unusual landscape.
PIA03782:
Knobby Terrain in Northern Arabia Terra
Full Resolution:     TIFF (1.532 MB)     JPEG (451.6 kB)
Add Image to Favorite List 2002-05-23 Mars 2001 Mars Odyssey
 THEMIS
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This image from NASA's Mars Odyssey shows Noctis Labyrinthus, a large valley system at the western end of the Valles Marineris canyon system notable for a pattern of intersecting valleys, which give it a maze-like appearance when viewed from above.
PIA03783:
Noctis Labyrinthus
Full Resolution:     TIFF (1.263 MB)     JPEG (270.1 kB)
Add Image to Favorite List 2002-05-23 Mars 2001 Mars Odyssey
 THEMIS
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This NASA Mars Odyssey image covers a tract of plateau territory called Ophir Planum. The most obvious features in this scene are the fractures (ranging from 1 to 5 km wide) running from the upper left to lower right.
PIA03784:
Crustal Fractures of Ophir Planum
Full Resolution:     TIFF (1.52 MB)     JPEG (298.5 kB)
Add Image to Favorite List 2002-05-23 Mars 2001 Mars Odyssey
 THEMIS
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This region of Terra Meridiani, imaged by NASA's Mars Odyssey, shows an old, heavily degraded channel that appears to terminate abruptly at the rim of a 10 km diameter crater, suggesting that the impact crater was created after the channel was formed.
PIA03785:
Cratered terrain in Terra Meridiani
Full Resolution:     TIFF (1.725 MB)     JPEG (384.2 kB)
Add Image to Favorite List 2002-05-23 Mars 2001 Mars Odyssey
 THEMIS
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This image from NASA's Mars Odyssey spacecraft is from the region of Syrtis Major, which is dominated by a low-relief shield volcano and believed to be an area of vigorous aeolian activity with strong winds in the east-west direction.
PIA03786:
Syrtis Major
Full Resolution:     TIFF (1.73 MB)     JPEG (469.6 kB)
Add Image to Favorite List 2002-05-23 Mars 2001 Mars Odyssey
 THEMIS
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This image by NASA's Mars Odyssey spacecraft shows a region of northern Tempe Terra. Patchy water-ice clouds cover portions of the low-lying canyon at the top (north) of this image.
PIA03787:
Clouds in the Northern Tempe Terra
Full Resolution:     TIFF (1.407 MB)     JPEG (329.4 kB)
Add Image to Favorite List 2002-05-23 Mars 2001 Mars Odyssey
 THEMIS
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The eastern rim of this unnamed crater in Southern Arabia Terra, imaged by NASA's Mars Odyssey, is very degraded, indicating that it's an ancient crater that's been subjected to erosion and bombardment from impactors such as asteroids and comets.
PIA03788:
Degraded Crater Rim
Full Resolution:     TIFF (1.696 MB)     JPEG (380.5 kB)
Add Image to Favorite List 2002-05-23 Mars 2001 Mars Odyssey
 THEMIS
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Cerberus, seen in this image from NASA's Mars Odyssey spacecraft, is a dark region on Mars that has shrunk down from a continuous length of about 1000 km to roughly three discontinuous spots a few 100 kms in length in less than 20 years.
PIA03789:
Cerberus Wind Streaks
Full Resolution:     TIFF (1.711 MB)     JPEG (420.1 kB)
Add Image to Favorite List 2002-05-23 Mars 2001 Mars Odyssey
 THEMIS
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At the top right of this NASA Mars Odyssey image, the rim of the caldera of Pavonis Mons, one of four exceptionally large volcanoes in the Tharsis region, is barely visible with steep cliffs formed by the collapse of a portion of the volcano's summit.
PIA03790:
Pavonis Mons
Full Resolution:     TIFF (1.237 MB)     JPEG (269 kB)
Add Image to Favorite List 2002-05-24 Mars 2001 Mars Odyssey
 THEMIS
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This image from NASA's Mars Odyssey spacecraft displays dust devil tracks on the surface of Mars. Most of the lighter portions of the image likely have a thin veneer of dust settled on the surface.
PIA03791:
Dust Devil Tracks
Full Resolution:     TIFF (1.943 MB)     JPEG (627.8 kB)
Add Image to Favorite List 2002-05-28 Mars 2001 Mars Odyssey
 Gamma Ray Spectrometer Suite
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NASA Mars Odyssey observations are used in this global view of Mars in intermediate-energy, or epithermal, neutrons. Soil enriched by hydrogen is indicated by the deep blue colors on the map, which show a low intensity of epithermal neutrons.
PIA03800:
Global Map of Epithermal Neutrons
Full Resolution:     TIFF (1.268 MB)     JPEG (1.292 MB)
Add Image to Favorite List 2002-05-28 Mars 2001 Mars Odyssey
 Gamma Ray Spectrometer Suite
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Observations by NASA's Mars Odyssey spacecraft show a global view of Mars in low energy, or thermal, neutrons. Thermal neutrons are sensitive to the presence of hydrogen and the presence of carbon dioxide, in this case 'dry ice' frost.
PIA03801:
Global Map of Thermal Neutrons
Full Resolution:     TIFF (1.161 MB)     JPEG (1.242 MB)
Add Image to Favorite List 2002-05-28 Mars 2001 Mars Odyssey
 Gamma Ray Spectrometer Suite
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Observations by NASA's Mars Odyssey spacecraft show views of the polar regions of Mars in thermal neutrons (top) and epithermal neutrons (bottom). In these maps, deep blue indicates a low amount of neutrons and red indicates a high amount.
PIA03802:
Polar Maps of Thermal and Epithermal Neutrons
Full Resolution:     TIFF (633.3 kB)     JPEG (586 kB)
Add Image to Favorite List 2002-05-28 Mars 2001 Mars Odyssey
 Gamma Ray Spectrometer Suite
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This diagram shows a possible configuration of ice-rich and dry soil in the upper meter (3 feet) of Mars. The ice-rich soil was detected by the gamma ray spectrometer suite of instruments aboard NASA's Mars Odyssey spacecraft.
PIA03803:
Cross-Section of Icy Soil
Full Resolution:     TIFF (2.723 MB)     JPEG (421.9 kB)
Add Image to Favorite List 2002-05-28 Mars 2001 Mars Odyssey
 Gamma Ray Spectrometer Suite
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This artist's rendering portrays ice-rich layers in the soils of Mars being detected by instruments aboard NASA's 2001 Mars Odyssey spacecraft.
PIA03804:
Artist's View of Odyssey Detecting Ice (Artist Concept)
Full Resolution:     TIFF (72.28 MB)     JPEG (3.86 MB)
Add Image to Favorite List 2002-05-29 Mars 2001 Mars Odyssey
 THEMIS
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Infrared imaging from NASA's Mars Odyssey spacecraft shows signs of layering exposed at the surface in a region of Mars called Terra Meridiani.
PIA03806:
Mars Surface Layers in Infrared
Full Resolution:     TIFF (1.667 MB)     JPEG (285.5 kB)
Add Image to Favorite List 2002-05-29 Mars 2001 Mars Odyssey
 THEMIS
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Color differences in this daytime infrared image taken by the camera on NASA's Mars Odyssey spacecraft represent differences in the mineral composition of the rocks, sediments and dust on the surface.
PIA03805:
Surface Composition Differences in Martian Canyon
Full Resolution:     TIFF (1.88 MB)     JPEG (130.1 kB)
Add Image to Favorite List 2002-05-30 Mars 2001 Mars Odyssey
 Gamma Ray Spectrometer Suite
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Observations by NASA's Mars Odyssey spacecraft show a global view of Mars in high-energy, or fast, neutrons.
PIA03807:
HEND Maps of Fast Neutrons
Full Resolution:     TIFF (600.3 kB)     JPEG (770.9 kB)
Add Image to Favorite List 2002-05-30 Mars 2001 Mars Odyssey
 Gamma Ray Spectrometer Suite
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This global view of Mars in intermediate-energy, or epithermal, neutrons was created from observations by NASA's Mars Odyssey spacecraft.
PIA03808:
HEND Maps of Epithermal Neutrons
Full Resolution:     TIFF (576 kB)     JPEG (719.5 kB)
Add Image to Favorite List 2002-06-04 Mars 2001 Mars Odyssey
 THEMIS
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This NASA Mars Odyssey image is of the ridged plains of Lunae Planum in the northern hemisphere of Mars. Wrinkle ridges, a very common landform on Mars, Mercury, Venus, and the Moon, are found mostly along the eastern side of the image.
PIA03793:
Wrinkle Ridges and Young Fresh Crater
Full Resolution:     TIFF (1.237 MB)     JPEG (351.4 kB)
Add Image to Favorite List 2002-06-04 Mars 2001 Mars Odyssey
 THEMIS
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The rugged, arcuate rim of the 90 km crater Reuyl dominates this NASA Mars Odyssey image. Reuyl crater is at the southern edge of a region known to be blanketed in thick dust based on its high albedo (brightness) and low thermal inertia values.
PIA03794:
Reuyl Crater Dust Avalanches
Full Resolution:     TIFF (1.696 MB)     JPEG (346.3 kB)
Add Image to Favorite List 2002-06-04 Mars 2001 Mars Odyssey
 THEMIS
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Splotchy water ice clouds obscure the northern lowland plains in the region where NASA's Viking 2 spacecraft landed in this image by NASA's Mars Odyssey spacecraft.
PIA03795:
Water Ice Clouds over the Northern Plains
Full Resolution:     TIFF (1.835 MB)     JPEG (580.7 kB)
Add Image to Favorite List 2002-06-04 Mars 2001 Mars Odyssey
 THEMIS
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This image by NASA's Mars Odyssey spacecraft shows Utopia Planitia, a large plain in the northern hemisphere of Mars. It is believed that this basin is the result of a large impact.
PIA03796:
Utopia Planitia
Full Resolution:     TIFF (1.833 MB)     JPEG (534.5 kB)
Add Image to Favorite List 2002-06-04 Mars 2001 Mars Odyssey
 THEMIS
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This NASA Mars Odyssey image shows a close-up view of the ridged plains in Hesperia Planum, a classic locality for Martian surfaces that formed in the 'middle ages' of the planet's history.
PIA03797:
Hesperia Planum
Full Resolution:     TIFF (2.142 MB)     JPEG (678.1 kB)
Add Image to Favorite List 2002-06-04 Mars 2001 Mars Odyssey
 THEMIS
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Although the largest volcanoes on Mars (and in the solar system) are located in the geologically young Tharsis region, there are many Martian volcanoes that display equally interesting features, such as Hadriaca Patera in this NASA Mars Odyssey image.
PIA03798:
Hadriaca Patera
Full Resolution:     TIFF (1.952 MB)     JPEG (582 kB)
Add Image to Favorite List 2002-06-04 Mars 2001 Mars Odyssey
 THEMIS
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This NASA Mars Odyssey image shows a portion of the summit region of Arsia Mons, one of the four giant volcanoes in the Tharsis region of Mars. This volcano stands more than 20 km above the surrounding plains, and is about 450 km in diameter at its base.
PIA03799:
Arsia Mons
Full Resolution:     TIFF (1.591 MB)     JPEG (345.1 kB)
Add Image to Favorite List 2002-06-05 Mars 2001 Mars Odyssey
 THEMIS
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Kasei Valles is one of the largest outflow channels on Mars. This NASA Mars Odyssey image is of the northern branch of Kasei Valles and shows the channel floor and northern channel wall.
PIA03792:
Kasei Valles
Full Resolution:     TIFF (1.239 MB)     JPEG (294.5 kB)
Add Image to Favorite List 2002-06-07 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows patterned ground on Mars taking the form of large polygons, each bounded by either troughs or ridges made up of rock particles different in size from those seen in the interior of the polygon.
PIA03496:
Southern Hemisphere Polygonal Patterned Ground
Full Resolution:     TIFF (2.906 MB)     JPEG (915.9 kB)
Add Image to Favorite List 2002-06-17 Mars 2001 Mars Odyssey
 THEMIS
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This image from NASA's Mars Odyssey spacecraft shows the northern interior wall of Coprates Chasma, one of the major canyons that form Valles Marineris.
PIA03809:
Coprates Chasma
Full Resolution:     TIFF (1.395 MB)     JPEG (291.4 kB)
Add Image to Favorite List 2002-06-17 Mars 2001 Mars Odyssey
 THEMIS
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This image of Tharsis Rise from NASA's Mars Odyssey shows a series of linear features called graben, which are associated with crustal extension resulting in up and down blocks of crust that run perpendicular to the direction of the extension.
PIA03810:
Tharsis Rise Graben
Full Resolution:     TIFF (1.57 MB)     JPEG (409.1 kB)
Add Image to Favorite List 2002-06-17 Mars 2001 Mars Odyssey
 THEMIS
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Many places on Mars, such as in this image from NASA's Mars Odyssey spacecraft of a crater superposed on the floor of a larger crater, display scabby, eroded landscapes that commonly are referred to as etched terrain.
PIA03811:
Northern Arabia Etched Terrain
Full Resolution:     TIFF (1.756 MB)     JPEG (488.2 kB)
Add Image to Favorite List 2002-06-17 Mars 2001 Mars Odyssey
 THEMIS
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This image taken by NASA's Mars Odyssey spacecraft shows a portion of Maunder Crater with a number of interesting features including a series of barchan dunes that are traveling from right to left and gullies.
PIA03812:
Maunder Crater
Full Resolution:     TIFF (1.575 MB)     JPEG (349.7 kB)
Add Image to Favorite List 2002-06-17 Mars 2001 Mars Odyssey
 THEMIS
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This NASA Mars Odyssey image shows the transition zone between maze-like troughs of Noctis Labyrinthus and the main Valles Marineris canyon system. This huge system of troughs near the equator of Mars was most likely created by tectonic forces.
PIA03813:
Noctis Labyrinthus/Valles Marineris transition
Full Resolution:     TIFF (1.385 MB)     JPEG (273.9 kB)
Add Image to Favorite List 2002-06-17 Mars 2001 Mars Odyssey
 THEMIS
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The finely layered deposit in Becquerel crater, seen in the center of this NASA Mars Odyssey image, is slowly being eroded away by the action of windblown sand.
PIA03814:
Becquerel Crater Deposit
Full Resolution:     TIFF (1.512 MB)     JPEG (368 kB)
Add Image to Favorite List 2002-06-17 Mars 2001 Mars Odyssey
 THEMIS
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This image from NASA's Mars Odyssey captures Mangala Fossa. Mangala Fossa is a graben, which in geologic terminology translates into a long parallel to semi-parallel fracture or trough.
PIA03815:
Mangala Fossa
Full Resolution:     TIFF (1.503 MB)     JPEG (350.9 kB)
Add Image to Favorite List 2002-06-17 Mars 2001 Mars Odyssey
 THEMIS
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This image from NASA's Mars Odyssey spacecraft shows signs of layering exposed at the surface in a region of Mars called Terra Meridiani. The brightness levels show daytime surface temperatures.
PIA03817:
Mars Surface Layers in Infrared
Full Resolution:     TIFF (1.754 MB)     JPEG (495.5 kB)
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