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List		 Addition Date TargetSort Descending Mission Instrument Size
Add Image to Favorite List 2003-06-26 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows dozens of layers of similar thickness and physical properties in a wedding cake-like stack in the middle of an old meteor impact crater in northwestern Schiaparelli Basin on Mars.
PIA04592:
Schiaparelli Sedimentary Rocks
Full Resolution:     TIFF (438.1 kB)     JPEG (115.6 kB)
Add Image to Favorite List 2003-02-26 Mars 2001 Mars Odyssey
 THEMIS
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The sinuous channel in this NASA Mars Odyssey image begins at the edge of Cerulli Crater in northern Arabia and snakes its way across 1,000 km (621 miles) of cratered highlands before reaching Deuteronilus Mensae at the boundary of the northern lowlands.
PIA04428:
Mamers Vallis
Full Resolution:     TIFF (2.998 MB)     JPEG (451.9 kB)
Add Image to Favorite List 2003-02-26 Mars 2001 Mars Odyssey
 THEMIS
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This image from NASA's Mars Odyssey spacecraft shows the easternmost end of Valles Marineris, where a rugged, jumbled terrain known as chaos displays a stratigraphy that could be described as precarious.
PIA04429:
Arsinoes Chaos
Full Resolution:     TIFF (3.421 MB)     JPEG (581.1 kB)
Add Image to Favorite List 2003-02-26 Mars 2001 Mars Odyssey
 THEMIS
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The top half of this NASA Mars Odyssey image shows interior layered deposits that have long been recognized in Valles Marineris. Upon close examination, the layers appear to be eroding differently, indicating different levels of competency.
PIA04430:
Valles Marineris - with 3-D
Full Resolution:     TIFF (3.357 MB)     JPEG (713.5 kB)
Add Image to Favorite List 2003-02-26 Mars 2001 Mars Odyssey
 THEMIS
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The long sharp-crested features observed in this image from NASA's Mars Odyssey spacecraft are named yardangs. Yardangs form by wind erosion and typically lie in the direction of the dominant wind.
PIA04431:
Lycus Sulci
Full Resolution:     TIFF (3.601 MB)     JPEG (1.021 MB)
Add Image to Favorite List 2003-03-06 Mars 2001 Mars Odyssey
 THEMIS
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This image from NASA's Mars Odyssey spacecraft shows grooves within channels of Kasei Valles that can be interpreted as evidence for fluvial activity.
PIA04434:
Kasei Vallis
Full Resolution:     TIFF (2.885 MB)     JPEG (399.7 kB)
Add Image to Favorite List 2003-03-06 Mars 2001 Mars Odyssey
 THEMIS
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The wind-sculpted yardangs in this scene from NASA's Mars Odyssey spacecraft are part of the Medusae Fossae Formation, a regionally extensive geologic unit that probably was produced from the accumulation of volcanic ash.
PIA04435:
Memnonia Sulci
Full Resolution:     TIFF (3.632 MB)     JPEG (743 kB)
Add Image to Favorite List 2003-03-06 Mars 2001 Mars Odyssey
 THEMIS
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The large crater at the top of this image from NASA's Mars Odyssey spacecraft has several other craters inside of it. Most noticeable are the craters that form a 'chain' on the southern wall of the large crater.
PIA04436:
Crater Chains
Full Resolution:     TIFF (3.097 MB)     JPEG (464.6 kB)
Add Image to Favorite List 2003-03-06 Mars 2001 Mars Odyssey
 THEMIS
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With its rim eroded off by catastrophic floods in Tiu Vallis and its strangely angular shape, this 12 km (about 7.5 mile) diameter crater imaged by NASA's Mars Odyssey spacecraft looks vaguely like a stop sign.
PIA04437:
Stop Sign Crater
Full Resolution:     TIFF (3.102 MB)     JPEG (561.3 kB)
Add Image to Favorite List 2003-03-11 Mars Mars Pathfinder (MPF)
 Imager for Mars Pathfinder
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NASA's Sojourner takes a picture of one of its hazard-detecting laser stripes which is clearly visible against the Martian surface. Sol 1 began on July 4, 1997.
PIA04316:
Sol 8
Full Resolution:     TIFF (227.8 kB)     JPEG (28.01 kB)
Add Image to Favorite List 2003-03-07 Mars 2001 Mars Odyssey
 THEMIS
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An unusual mix of textures is featured in this image from NASA's Mars Odyssey spacecraft of a surface east of the Phlegra Montes. Scabby mounds, commonly occurring around degraded craters, mix with a more muted, knobby terrain.
PIA04438:
Textures in Arcadia Planitia
Full Resolution:     TIFF (3.519 MB)     JPEG (822 kB)
Add Image to Favorite List 2003-03-07 Mars 2001 Mars Odyssey
 THEMIS
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Hrad Vallis, seen in this NASA Mars Odyssey image, appears to be affecting the local wind patterns. The texture of the terrain just around the valleys is markedly different from that its surroundings.
PIA04439:
Hrad Vallis
Full Resolution:     TIFF (2.897 MB)     JPEG (440.3 kB)
Add Image to Favorite List 2003-03-11 Mars Mars Pathfinder (MPF)
 Imager for Mars Pathfinder
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The First IMP Image from Mars Acquired by NASA's Mars Pathfinder Imager on 8:42 MLST sol1. Sojourner spent 83 days of a planned seven-day mission exploring the Martian terrain. Sol 1 began on July 4, 1997.
PIA04309:
The First IMP Image from Mars
Full Resolution:     TIFF (18.83 kB)     JPEG (7.326 kB)
Add Image to Favorite List 2003-03-11 Mars Mars Pathfinder (MPF)
 Imager for Mars Pathfinder
 256x248x1
This is the first image from NASA's Imager for Mars Pathfinder (IMP) that includes a glimpse of the plant surface. This image was taken at 8:42 MLSTsol 1.
PIA04310:
First IMP Image
Full Resolution:     TIFF (22.09 kB)     JPEG (9.093 kB)
Add Image to Favorite List 2003-03-11 Mars Mars Pathfinder (MPF)
 Imager for Mars Pathfinder
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This is the first image captured by NASA's Imager for Mars Pathfinder (IMP) that dedicates a significant portion of the frame to the Martian surface. This image was acquired by IMP at 8:48 MLST sol 1.
PIA04311:
First IMP Image Showing Something That Looks Like Mars
Full Resolution:     TIFF (23.08 kB)     JPEG (10.43 kB)
Add Image to Favorite List 2003-03-11 Mars Mars Pathfinder (MPF)
 Imager for Mars Pathfinder
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These images are views of NASA's Mars Pathfinder Lander's forward ramp before (top image) and after (bottom image) deployment. Some data from the before image was lost due to rover-lander communication problems. Sol 1 began on July 4, 1997.
PIA04312:
Sojourner's First Images From Mars
Full Resolution:     TIFF (192.3 kB)     JPEG (48.43 kB)
Add Image to Favorite List 2003-03-11 Mars Mars Pathfinder (MPF)
 Imager for Mars Pathfinder
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These stills are from the first rover movie which showed the rover being deployed and touching down on the Martian surface. NASA's Sojourner spent 83 days of a planned seven-day mission exploring the Martian terrain. Sol 1 began on July 4, 1997.
PIA04314:
Six Wheels on the Soil
Full Resolution:     TIFF (225.7 kB)     JPEG (147.9 kB)
Add Image to Favorite List 2003-03-11 Mars Mars Pathfinder (MPF)
 Imager for Mars Pathfinder
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This image of the Mars Pathfinder Lander on the surface of Mars was imaged by NASA's Sojourner as it looks back. Sojourners tracks are visible in the foreground. Sol 1 began on July 4, 1997.
PIA04315:
The Second Rover Image
Full Resolution:     TIFF (358.2 kB)     JPEG (53.05 kB)
Add Image to Favorite List 2003-03-11 Mars Mars Pathfinder (MPF)
 Imager for Mars Pathfinder
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During a soil mechanics experiment, NASA's Mars Pathfinder rover Sojourner does a wheelie, lifting its front left wheel into the air.
PIA04317:
Rover Does a Wheelie
Full Resolution:     TIFF (87.28 kB)     JPEG (12.48 kB)
Add Image to Favorite List 2003-03-13 Mars Mars Pathfinder (MPF)
 Imager for Mars Pathfinder
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This Imager for Mars Pathfinder image shows NASA's Sojourner latch spring before (left image) and after (right image) deployment. This is how visual confirmation was made that at least one side of the rover had stood up and locked in place as planned.
PIA04313:
Sojourner Latch Spring Deployed
Full Resolution:     TIFF (10.85 kB)     JPEG (5.628 kB)
Add Image to Favorite List 2003-03-13 Mars 2001 Mars Odyssey
 Gamma Ray Spectrometer Suite
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This gamma ray spectrometer map from NASA's Mars Odyssey of the mid-latitude region of Mars is based on gamma-rays from the element iron, one of the most abundant elements on Mars and Earth. It is responsible for the red color on the surface of Mars.
PIA04253:
Map of Martian Iron at Mid-Latitudes
Full Resolution:     TIFF (2.495 MB)     JPEG (180.7 kB)
Add Image to Favorite List 2003-03-13 Mars 2001 Mars Odyssey
 Gamma Ray Spectrometer Suite
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NASA's Mars Odyssey spacecraft produced this gamma ray spectrometer map, which is centered on the north pole of Mars and based on gamma-rays from the element hydrogen. In this region, hydrogen is mainly in the form of water ice.
PIA04254:
Map of Martian Polar Hydrogen
Full Resolution:     TIFF (2.15 MB)     JPEG (117 kB)
Add Image to Favorite List 2003-03-13 Mars 2001 Mars Odyssey
 Gamma Ray Spectrometer Suite
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The element potassium, shown on this NASA Mars Odyssey gamma ray spectrometer map of the mid-latitude region of Mars, is a naturally radioactive element and is a minor constituent of rocks on the surface of both Mars and Earth.
PIA04255:
Map of Martian Potassium at Mid-Latitudes
Full Resolution:     TIFF (2.463 MB)     JPEG (179.9 kB)
Add Image to Favorite List 2003-03-13 Mars 2001 Mars Odyssey
 Gamma Ray Spectrometer Suite
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NASA's Mars Odyssey produced this gamma ray spectrometer map of the mid-latitude region of Mars is based on gamma-rays from the element silicon, one of the most abundant elements on the surface of both Mars and Earth.
PIA04256:
Map of Martian Silicon at Mid-Latitudes
Full Resolution:     TIFF (2.631 MB)     JPEG (173.6 kB)
Add Image to Favorite List 2003-03-13 Mars 2001 Mars Odyssey
 Gamma Ray Spectrometer Suite
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Thorium is a naturally radioactive element that exists in rocks and soils in extremely small amounts. The region of highest thorium content, shown in red on this gamma ray spectrometer map from NASA's Mars Odyssey, is in northern Acidalia Planitia.
PIA04257:
Map of Martian Thorium at Mid-Latitudes
Full Resolution:     TIFF (2.505 MB)     JPEG (174.9 kB)
Add Image to Favorite List 2003-03-13 Mars 2001 Mars Odyssey
 Mars Radiation Experiment
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This graphic shows the radiation dose equivalent as measured by NASA's Mars Odyssey and by instruments aboard the International Space Station, for the 11-month period from April 2002 through February 2003.
PIA04258:
Comparison of Martian Radiation Environment with International Space Station
Full Resolution:     TIFF (315 kB)     JPEG (79.39 kB)
Add Image to Favorite List 2003-03-13 Mars 2001 Mars Odyssey
 THEMIS
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This mosaic of daytime infrared images of Gusev Crater, taken by NASA's Mars Odyssey spacecraft, has been draped over topography data obtained by NASA's Mars Global Surveyor.
PIA04260:
Gusev Crater
Full Resolution:     TIFF (3.41 MB)     JPEG (544.5 kB)
Add Image to Favorite List 2003-03-13 Mars 2001 Mars Odyssey
 THEMIS
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Images from NASA's Mars Odyssey spacecraft were used to create this mosaic of nighttime infrared images of Gusev Crater, which has been draped over topography data obtained by NASA's Mars Global Surveyor.
PIA04261:
Gusev Crater
Full Resolution:     TIFF (2.942 MB)     JPEG (812.8 kB)
Add Image to Favorite List 2003-03-13 Mars 2001 Mars Odyssey
 THEMIS
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This image from NASA's Mars Odyssey spacecraft shows part of Ganges Chasma in Valles Marineris. The colors indicate compositional variations in the rocks exposed in the wall and floor of Ganges and in the dust and sand on the rim of the canyon.
PIA04262:
Ganges Chasma
Full Resolution:     TIFF (4.195 MB)     JPEG (365.6 kB)
Add Image to Favorite List 2003-03-13 Mars 2001 Mars Odyssey
 THEMIS
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This is a NASA Mars Odyssey visible color image of an unnamed crater in western Arcadia Planitia. The crater shows a number of interesting internal and external features that suggest that it has undergone substantial modification since it formed.
PIA04263:
Western Arcadia Planitia
Full Resolution:     TIFF (1.554 MB)     JPEG (55.23 kB)
Add Image to Favorite List 2003-03-14 Mars 2001 Mars Odyssey
 THEMIS
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In this image from NASA's Mars Odyssey spacecraft, numerous lava flows and fossae (cracks) are visible in a region of Mars located southeast of Olympus Mons. There is also a hint that water may have possibly flowed in the region.
PIA04440:
Gordii Fossae
Full Resolution:     TIFF (3.296 MB)     JPEG (706.9 kB)
Add Image to Favorite List 2003-03-14 Mars 2001 Mars Odyssey
 THEMIS
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The smooth plains of Elysium embay the blocky broken up highlands of Aeolis in this image from NASA's Mars Odyssey spacecraft. The plains have been interpreted by researchers to be possibly mudflows or lava flows.
PIA04441:
Highland/Lowland contact
Full Resolution:     TIFF (3.271 MB)     JPEG (569.2 kB)
Add Image to Favorite List 2003-03-14 Mars 2001 Mars Odyssey
 THEMIS
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This NASA Mars Odyssey image shows 'Lycus Sulci,' a region of ridges and hills located north-northwest of the volcano Olympus Mons. Several dust avalanches on the flanks of the roughly textured surfaces suggest a thick coating of fine-grained materials.
PIA04442:
Lycus Sulci
Full Resolution:     TIFF (3.42 MB)     JPEG (481.6 kB)
Add Image to Favorite List 2003-03-19 Mars 2001 Mars Odyssey
 THEMIS
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Dunes in the Vastitas Borealis region of Mars are seen in this image from NASA's Mars Odyssey spacecraft. These sand seas migrate around the north polar cap following the strong polar vortex winds.
PIA04443:
Polar Dunes
Full Resolution:     TIFF (2.943 MB)     JPEG (366.5 kB)
Add Image to Favorite List 2003-03-19 Mars 2001 Mars Odyssey
 THEMIS
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Just north of the hematite deposit in Meridiani Planum, the remnants of a formerly extensive layer of material remain as isolated knobs and buttes in this image from NASA's Mars Odyssey spacecraft.
PIA04444:
Martian Braille
Full Resolution:     TIFF (3.258 MB)     JPEG (598.9 kB)
Add Image to Favorite List 2003-03-19 Mars 2001 Mars Odyssey
 THEMIS
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Pavonis Mons is the middle of the three large volcanoes on the Tharsis bulge. This image from NASA's Mars Odyssey spacecraft covers the edge of the volcano's caldera. Outside of the caldera, numerous lava flows and impact craters can be seen.
PIA04445:
Pavonis Mons Caldera
Full Resolution:     TIFF (3.041 MB)     JPEG (404 kB)
Add Image to Favorite List 2003-03-22 Mars 2001 Mars Odyssey
 THEMIS
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The fluidized impact crater ejecta and flat crater floors observed in this image from NASA's Mars Odyssey spacecraft suggest near-surface volatiles once played an important role in modifying the Martian surface.
PIA04446:
Impact Craters
Full Resolution:     TIFF (2.798 MB)     JPEG (404.5 kB)
Add Image to Favorite List 2003-03-22 Mars 2001 Mars Odyssey
 THEMIS
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The floor of the crater in this NASA Mars Odyssey image displays interesting textures and it appears to have been flooded by some type of material. It is unclear if this material was fluvially emplaced mud (hyperconcentrated flows) or lava.
PIA04447:
Flooded Crater in Terra Sirenum
Full Resolution:     TIFF (3.31 MB)     JPEG (586.4 kB)
Add Image to Favorite List 2003-03-22 Mars 2001 Mars Odyssey
 THEMIS
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In this image from NASA's Mars Odyssey, eroded mesas and secondary craters dot the landscape in an area of Cydonia Mensae. The single oval-shaped crater displays a 'butterfly' ejecta pattern, indicating that the crater formed from a low-angle impact.
PIA04448:
Cydonia Craters
Full Resolution:     TIFF (2.835 MB)     JPEG (431.4 kB)
Add Image to Favorite List 2003-03-27 Mars 2001 Mars Odyssey
 THEMIS
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The eroded, layered deposit in this NASA Mars Odyssey image of Gale Crater is a mound of material rising 3 km (about 2 miles) above the crater floor. It has been sculpted by wind and possibly water to produce the dramatic landforms seen today.
PIA04449:
Gale Crater Mound
Full Resolution:     TIFF (3.352 MB)     JPEG (532.7 kB)
Add Image to Favorite List 2003-03-27 Mars 2001 Mars Odyssey
 THEMIS
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This is an image from NASA's Mars Odyssey spacecraft of an area within Acidalia Planitia that contains patterned ground (near the top of the image). This type of surface is likely related to subsurface ice.
PIA04450:
Acidalia Planitia
Full Resolution:     TIFF (2.655 MB)     JPEG (399 kB)
Add Image to Favorite List 2003-04-02 Mars 2001 Mars Odyssey
 THEMIS
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In this image from NASA's Mars Odyssey spacecraft showing a location about 1,000 km (620 miles) west of the massive Elysium volcanic complex, a system of branching troughs shows a continuum of features that provides clues to its origin.
PIA04451:
Hebrus Valles
Full Resolution:     TIFF (3.114 MB)     JPEG (551.3 kB)
Add Image to Favorite List 2003-04-02 Mars 2001 Mars Odyssey
 THEMIS
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This image from NASA's Mars Odyssey spacecraft shows relatively dark coarse grained material forming individual dunes coalescing into a relatively uniform sand sheet.
PIA04452:
Dunes
Full Resolution:     TIFF (3.568 MB)     JPEG (734.9 kB)
Add Image to Favorite List 2003-04-02 Mars 2001 Mars Odyssey
 THEMIS
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The slumping of materials in the walls of this impact crater imaged by NASA's Mars Odyssey spacecraft illustrates the continued erosion of the Martian surface. Small fans of debris as well as larger landslides are observed throughout the image.
PIA04453:
Landslides
Full Resolution:     TIFF (3.302 MB)     JPEG (540.7 kB)
Add Image to Favorite List 2003-04-04 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows six global images acquired on February 14, 2003.
PIA04268:
A Mid-Northern Summer/Southern Winter's Mars
Full Resolution:     TIFF (4.815 MB)     JPEG (240.5 kB)
Add Image to Favorite List 2003-04-04 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a scar left by a landslide revealing layers in the bedrock at the top the slope and shows a plethora of dark-toned, house-sized boulders that rolled down the slope and collected at the base of the landslide scar.
PIA04269:
Landslide in Kasei Valles
Full Resolution:     TIFF (5.04 MB)     JPEG (1.108 MB)
Add Image to Favorite List 2003-04-04 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a pair of images featuring gullies and associated scars formed by mass-movement down a slope in Mars' south polar region.
PIA04270:
Spring Defrosting of Mass-Movement Material at South High Latitudes
Full Resolution:     TIFF (822.2 kB)     JPEG (131.3 kB)
Add Image to Favorite List 2003-04-04 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows heavily cratered terrain at high southern latitudes. A thin line of haze, high in the martian atmosphere, can be seen above the planet's surface.
PIA04271:
The Martian Limb
Full Resolution:     TIFF (196.1 kB)     JPEG (35.28 kB)
Add Image to Favorite List 2003-04-04 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows the Tharsis region, which includes several very large volcanoes. Olympus Mons, the largest martian volcano.
PIA04272:
Mars in Early Northern Spring
Full Resolution:     TIFF (946.3 kB)     JPEG (29.64 kB)
Add Image to Favorite List 2003-04-04 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x1
NASA's Mars Global Surveyor shows sand dunes in Wirtz Crater on Mars.
PIA04273:
Wirtz Crater Dune Field
Full Resolution:     TIFF (438.1 kB)     JPEG (56.22 kB)
Add Image to Favorite List 2003-04-04 Mars 2001 Mars Odyssey
 THEMIS
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This image from NASA's Mars Odyssey spacecraft shows a flooded crater in Amazonis Planitia. This crater has been either flooded with mud and or lava. The fluid then ponded up, dried and formed the surface textures we see today.
PIA04454:
Flooded Crater
Full Resolution:     TIFF (3.469 MB)     JPEG (875 kB)
Add Image to Favorite List 2003-04-04 Mars 2001 Mars Odyssey
 THEMIS
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Interesting textures on lava flows in Daedalia Planum, southwest of the Tharsis volcanoes, can by observed in this image from NASA's Mars Odyssey spacecraft.
PIA04455:
Daedalia Planum
Full Resolution:     TIFF (3.583 MB)     JPEG (855.6 kB)
Add Image to Favorite List 2003-04-04 Mars 2001 Mars Odyssey
 THEMIS
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The small mounds with summit depressions in the northern part of this NASA Mars Odyssey image have an unknown origin. Some scientists think they may be cinder cones, while others think they may be pseudocraters, formed by the interaction of lava and ice.
PIA04456:
Acidalia Planitia
Full Resolution:     TIFF (3.576 MB)     JPEG (704 kB)
Add Image to Favorite List 2003-04-09 Mars 2001 Mars Odyssey
 THEMIS
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The mottled surface texture and flow features observed in this NASA Mars Odyssey image suggest materials may be, or have been, mixed with ice. There is also evidence in some areas for infilling of sediments as crater rims and ridges appear covered.
PIA04457:
Surface Erosion and Flow
Full Resolution:     TIFF (2.986 MB)     JPEG (472.3 kB)
Add Image to Favorite List 2003-04-09 Mars 2001 Mars Odyssey
 THEMIS
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This image from NASA's Mars Odyssey spacecraft shows the Olympica Fossae channel system located east of the Olympus Mons volcano in Tharsis. These anastomosing channels cut numerous lava flows indicating that the channels are younger than the lava flows.
PIA04458:
Olympica Fossae
Full Resolution:     TIFF (2.496 MB)     JPEG (389.3 kB)
Add Image to Favorite List 2003-04-09 Mars 2001 Mars Odyssey
 THEMIS
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In the high northern latitudes northwest of Alba Patera, a smooth mantle of material that covers the landscape appears chipped away from the rim of a large crater, as observed in this image from NASA's Mars Odyssey spacecraft.
PIA04459:
Chipped Paint Crater
Full Resolution:     TIFF (2.974 MB)     JPEG (438 kB)
Add Image to Favorite List 2003-04-11 Mars Viking
 Visual Imaging Subsystem
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Gusev Crater, the designated landing site for the first Mars Exploration Rover mission was seen here in its geological context from NASA Viking Orbiter 1.
PIA04274:
Gusev Crater
Full Resolution:     TIFF (30.59 MB)     JPEG (2.162 MB)
Add Image to Favorite List 2003-04-11 Mars Viking
 Visual Imaging Subsystem
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Meridiani Planum, the designated landing site for the second Mars Exploration Rover mission was seen here in its geological context from NASA Viking Orbiter 1.
PIA04275:
Meridiani Planum
Full Resolution:     TIFF (49.08 MB)     JPEG (3.939 MB)
Add Image to Favorite List 2003-04-15 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows frost-covered north polar sand dunes in springtime as they are beginning to defrost. Dark spots and streaks indicate areas where frozen carbon dioxide has started to be removed by sublimation and wind.
PIA04460:
Defrosting North Polar Dune Field
Full Resolution:     TIFF (438.1 kB)     JPEG (76.96 kB)
Add Image to Favorite List 2003-04-15 Mars 2001 Mars Odyssey
 THEMIS
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The circular depressions prevalent throughout this scene from NASA's Mars Odyssey at first glance appear to be craters, but are they? Could they be pits formed by devolatilization? It is not clear. Scientists are studying these features in search of answe
PIA04461:
Ismenia Fossae: Craters or Pits?
Full Resolution:     TIFF (3.147 MB)     JPEG (548.8 kB)
Add Image to Favorite List 2003-04-15 Mars 2001 Mars Odyssey
 THEMIS
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Tall narrow ridges snake between mesas and buttes in this image from NASA's Mars Odyssey. Where one such ridge crosses a flat-topped mesa (in the lower center of the image), the mesa surface is split into two surfaces of different heights.
PIA04462:
Ridges
Full Resolution:     TIFF (2.951 MB)     JPEG (433.4 kB)
Add Image to Favorite List 2003-04-15 Mars 2001 Mars Odyssey
 THEMIS
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Hummocky, textured terrain within lava flows northwest of Pavonis Mons, one of the Tharsis volcanoes, is shown in this image from NASA's Mars Odyssey spacecraft.
PIA04463:
Textured Terrain
Full Resolution:     TIFF (3.605 MB)     JPEG (866 kB)
Add Image to Favorite List 2003-04-15 Mars 2001 Mars Odyssey
 THEMIS
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The Medusae Fossae formation, seen in this NASA Mars Odyssey image, is an enigmatic pile of eroding sediments that spans over 5,000 km (3,107 miles) in discontinuous masses along the Martian equator.
PIA04464:
Medusae Fossae Yardangs
Full Resolution:     TIFF (3.427 MB)     JPEG (638.4 kB)
Add Image to Favorite List 2003-04-16 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x1
NASA's Mars Global Surveyor shows a complex streak formed by deposition and erosion of sediment by wind in the lee of an impact crater in western Daedalia Planum on Mars.
PIA04465:
Daedalia Planum Wind Streak
Full Resolution:     TIFF (438.1 kB)     JPEG (83.85 kB)
Add Image to Favorite List 2003-04-16 Mars 2001 Mars Odyssey
 THEMIS
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The surface textures observed in this NASA Mars Odyssey image of Ascraeus Mons are due to different volcanic flow types. Textural variations can be produced under a variety of different conditions such as varying cooling and flow rates.
PIA04466:
Ascraeus Mons
Full Resolution:     TIFF (3.654 MB)     JPEG (794.3 kB)
Add Image to Favorite List 2003-04-17 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x1
NASA's Mars Global Surveyor shows the margin of a large lava flow south of the Tharsis region of Mars.
PIA04467:
Lava Flow and Impact Crater
Full Resolution:     TIFF (438.1 kB)     JPEG (68.9 kB)
Add Image to Favorite List 2003-04-18 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x3
NASA's Mars Global Surveyor shows a north polar dust storm on March 7, 2003. White features at the top of the image are the water ice surfaces of Mar's north polar residual cap.
PIA04468:
North Polar Dust Storm
Full Resolution:     TIFF (1.225 MB)     JPEG (51.32 kB)
Add Image to Favorite List 2003-04-18 Mars 2001 Mars Odyssey
 THEMIS
 1239x3043x1
The remarkable terrain at the 'center' of Mars (0 degrees latitude and longitude), as seen in this NASA Mars Odyssey image, is called Meridiani Planum. It hosts a rare occurrence of gray crystalline hematite.
PIA04469:
Northeastern Meridiani
Full Resolution:     TIFF (3.507 MB)     JPEG (743.5 kB)
Add Image to Favorite List 2003-04-18 Mars 2001 Mars Odyssey
 THEMIS
 1240x3043x1
This image from NASA's Mars Odyssey spacecraft shows a crazy mixture of bizarre surface features in Lucus Planum.
PIA04470:
Lucus Planum
Full Resolution:     TIFF (3.509 MB)     JPEG (787.6 kB)
Add Image to Favorite List 2003-04-21 Mars 2001 Mars Odyssey
 THEMIS
 1175x3007x1
The crosscutting relationships observed in this image from NASA's Mars Odyssey spacecraft can be used to determine the relative timing of graben and channel formations.
PIA04471:
Crosscutting Grabens
Full Resolution:     TIFF (3.238 MB)     JPEG (578 kB)
Add Image to Favorite List 2003-04-21 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x1
NASA's Mars Global Surveyor shows dark, somewhat cemented, wind-scoured sand dunes of central Herschel Crater on Mars.
PIA04472:
Grooved Herschel Dunes
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Add Image to Favorite List 2003-04-21 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 541x810x1
NASA's Mars Global Surveyor shows dark-toned buttes of possible sedimentary rock in southern Melas Chasma on Mars.
PIA04473:
Buttes in Melas Chasma
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Add Image to Favorite List 2003-04-21 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x1
NASA's Mars Global Surveyor shows the 'swiss cheese' pattern of frozen carbon dioxide on the south polar residual cap.
PIA04474:
South Polar Ice Cap
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Add Image to Favorite List 2003-04-22 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x1
NASA's Mars Global Surveyor shows martian polar polygon patterns during southern spring, as the seasonal carbon dioxide frost cap was subliming away. Frost remaining in shallow cracks and depressions reveals a fantastic polygonal pattern.
PIA04475:
Polar Polygon Patterns
Full Resolution:     TIFF (438.1 kB)     JPEG (116.3 kB)
Add Image to Favorite List 2004-03-09 Mars Mars Exploration Rover (MER)
 Panoramic Camera
Rock Abrasion Tool (RAT)
 320x338x1
This panoramic image of the 3.1 millimeter-deep (just over one-tenth of an inch) hole ground by NASA's Mars Exploration Rover Opportunity's rock abrasion tool in the target called 'Mojo 2' on 'Flatrock' was taken on the 44th martian day.
PIA05521:
Focus on "Flatrock"
Full Resolution:     TIFF (102.3 kB)     JPEG (12 kB)
Add Image to Favorite List 2003-04-30 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x1
NASA's Mars Global Surveyor shows a ring of boulders on the floor of a southern mid-latitude basin on Mars. The sharp, inner ring of boulders and knobs is the location of the rim of a filled and buried impact crater.
PIA04486:
Boulder Ring
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Add Image to Favorite List 2003-04-24 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x1
NASA's Mars Global Surveyor shows a pattern of polygonal cracks and aligned, elliptical pits in western Utopia Planitia on Mars.
PIA04476:
Utopia Cracks and Polygons
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Add Image to Favorite List 2003-04-24 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x1
NASA's Mars Global Surveyor shows rocky, dust-mantled buttes in a terrain similar to the Monument Valley of Utah/Arizona, located southwest of the Cerberus region of Mars.
PIA04477:
Buttes South of Cerberus
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Add Image to Favorite List 2003-04-25 Mars 2001 Mars Odyssey
 THEMIS
 1239x3025x1
Streamlined buttes and mesas are left as remnants of an erosive wind that has carried away sediments and even the rim of a small crater in this image from NASA's Mars Odyssey spacecraft.
PIA04478:
Erosion and Wind Deposition
Full Resolution:     TIFF (3.389 MB)     JPEG (593.9 kB)
Add Image to Favorite List 2003-04-25 Mars 2001 Mars Odyssey
 THEMIS
 1169x2989x1
Embayment relationship is displayed where mottled plains material laps up against higher standing plains material in this image from NASA's Mars Odyssey spacecraft. The embaying material could be lava or possibly mud.
PIA04479:
Embayment
Full Resolution:     TIFF (3.246 MB)     JPEG (648.2 kB)
Add Image to Favorite List 2003-04-25 Mars 2001 Mars Odyssey
 THEMIS
 1144x2989x1
Amidst the hummocky topography produced by the ejecta from Lyot crater, smooth patches of material fill shallow depressions in this NASA Mars Odyssey image.
PIA04480:
Is It Snow?
Full Resolution:     TIFF (3.304 MB)     JPEG (544.8 kB)
Add Image to Favorite List 2003-04-25 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x3
The light-toned materials at the bottom end of this anaglyph fomr NASA's Mars Global Surveyor are considered to be thick exposures of sedimentary rock. 3D glasses are necessary to view this image.
PIA04481:
Northern Sinus Meridiani Stereo
Full Resolution:     TIFF (1.234 MB)     JPEG (41.56 kB)
Add Image to Favorite List 2003-04-28 Mars 2001 Mars Odyssey
 THEMIS
 1215x3025x1
This image from NASA's Mars Odyssey spacecraft shows several lava flows in Lycus Sulci. Notice the streamlined features near the bottom of the image indicating the flow direction.
PIA04482:
Lycus Sulci
Full Resolution:     TIFF (3.164 MB)     JPEG (647.1 kB)
Add Image to Favorite List 2003-04-28 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x1
NASA's Mars Global Surveyor shows dozens of layers of sedimentary rock in an unnamed western Arabia crater on Mars.
PIA04483:
Layers in 8°N, 7°W Crater
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Add Image to Favorite List 2003-04-28 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x1
NASA's Mars Global Surveyor shows the mysterious dune gullies of Russell Crater on Mars. The terrain shown here is one very large sand dune.
PIA04484:
Russell Dune Gullies
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Add Image to Favorite List 2003-04-28 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x1
NASA's Mars Global Surveyor shows the large, circular feature Aram Chaos, an ancient impact crater on Mars filled with layered sedimentary rock that was later disrupted and eroded to form a blocky, 'chaotic' appearance.
PIA04485:
Aram and Iani Chaos
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Add Image to Favorite List 2003-04-30 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x1
NASA's Mars Global Surveyor shows eroded layered rock outcrops near the southwest rim of Juventae Chasma in the southern hemisphere of Mars.
PIA04487:
Layers Near Juventae Chasma
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Add Image to Favorite List 2003-05-02 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x1
NASA's Mars Global Surveyor shows dozens of repeated layers of sedimentary rock in a western Arabia Terra crater on Mars. Dark patches are drifts of windblown sand.
PIA04488:
Sedimentary Rock Layers
Full Resolution:     TIFF (438.1 kB)     JPEG (98.22 kB)
Add Image to Favorite List 2003-05-02 Mars 2001 Mars Odyssey
 THEMIS
 1213x3007x1
The predominant feature in this image from NASA's Mars Odyssey spacecraft is a large flooded crater. Are the flows lava or mud? Scientists don't agree.
PIA04489:
Western Amazonis Flow Features and Crater Interaction
Full Resolution:     TIFF (3.143 MB)     JPEG (528.4 kB)
Add Image to Favorite List 2003-05-02 Mars 2001 Mars Odyssey
 THEMIS
 1237x3025x1
The ejecta material of the impact crater on Mars observed in this image from NASA's 2001 Mars Odyssey spacecraft is partly eroded as the trend of a regional geologic unit is beginning to emerge from beneath, or actively form on top of, the blanket.
PIA04490:
Eroded Ejecta
Full Resolution:     TIFF (3.496 MB)     JPEG (680.6 kB)
Add Image to Favorite List 2003-05-02 Mars 2001 Mars Odyssey
 THEMIS
 1429x3218x1
This image from NASA's Mars Odyssey shows the northeast flank of the 27 km-high volcano Ascraeus Mons on Mars, a set of collapse pits and troughs.
PIA04491:
Martian Kanji
Full Resolution:     TIFF (3.406 MB)     JPEG (646.1 kB)
Add Image to Favorite List 2003-05-02 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x1
NASA's Mars Global Surveyor shows of layered sedimentary rock outcrops in northern Sinus Meridiani on Mars featuring several buttes and ridges formed in rock that is somewhat resistant to erosion.
PIA04492:
Meridiani Cliffs and Buttes
Full Resolution:     TIFF (438.1 kB)     JPEG (86.56 kB)
Add Image to Favorite List 2003-05-05 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x1
NASA's Mars Global Surveyor shows a springtime view of frost-covered layers revealed by an eroded scarp in the martian north polar cap. The layers are thought to consist of a mixture of dust, ice, and possibly sand.
PIA04500:
Frosty North Polar Layers
Full Resolution:     TIFF (438.1 kB)     JPEG (65.32 kB)
Add Image to Favorite List 2003-05-05 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x1
NASA's Mars Global Surveyor shows layered sedimentary rock outcrops in Becquerel Crater of western Arabia Terra on Mars. These materials were deposited in the crater some time in the distant past, and later eroded to their present form.
PIA04501:
Becquerel Layers
Full Resolution:     TIFF (438.1 kB)     JPEG (98.36 kB)
Add Image to Favorite List 2003-05-05 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x1
NASA's Mars Global Surveyor shows a plethora of dark streaks created by passing dust devils during early summer in the martian southern hemisphere.
PIA04502:
Martian Dust Devil Tracks
Full Resolution:     TIFF (438.1 kB)     JPEG (108.1 kB)
Add Image to Favorite List 2003-05-05 Mars 2001 Mars Odyssey
 THEMIS
 1427x3195x1
NASA's 2001 Mars Odyssey spacecraft imaged this low-relief shield volcano on Mars showing two large vents which have erupted several individual lava flows.
PIA04503:
Volcano Vents
Full Resolution:     TIFF (3.732 MB)     JPEG (899 kB)
Add Image to Favorite List 2003-05-08 Mars 2001 Mars Odyssey
 THEMIS
 1421x3142x1
Craters, pit chains, graben, and lava flows south of Alba Patera, a volcano located within the Tharsis volcanic complex on Mars as seen by NASA's 2001 Mars Odyssey spacecraft.
PIA04504:
Craters, Pit Chains, and Graben, Oh My!
Full Resolution:     TIFF (3.412 MB)     JPEG (617.3 kB)
Add Image to Favorite List 2003-05-08 Mars 2001 Mars Odyssey
 THEMIS
 1433x3292x1
This image from NASA's Mars Odyssey shows the westernmost extent of the Medusae Fossae Formation on Mars, a 5000+ km long belt of eroding sediments, the interleaving of erosional surfaces produces dramatic textural variations.
PIA04505:
Deposition + Erosion = Textures
Full Resolution:     TIFF (3.816 MB)     JPEG (765.3 kB)
Add Image to Favorite List 2003-05-08 Mars 2001 Mars Odyssey
 THEMIS
 1413x3086x1
This image from NASA's Mars Odyssey observed variable surface textures on Mars, the result of different lava flow units.
PIA04506:
Surface Textures
Full Resolution:     TIFF (3.247 MB)     JPEG (515.2 kB)
Add Image to Favorite List 2003-05-08 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 540x810x1
NASA's Mars Global Surveyor shows the first day of spring in the martian southern hemisphere as seen by the spacecraft in 2003.
PIA04507:
Dunes and Dust Devil Tracks
Full Resolution:     TIFF (438.1 kB)     JPEG (63.29 kB)
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