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List		 Addition DateSort Ascending Target Mission Instrument Size
Add Image to Favorite List 2016-12-07 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows one of these exotic locales at the South Pole. The polar cap is made from carbon dioxide (dry ice). The circular pits are holes in this dry ice layer that expand by a few meters each Martian year.
PIA21216:
The Coolest Landscape on Mars (or Earth)
Full Resolution:     TIFF (10.51 MB)     JPEG (375.8 kB)
Add Image to Favorite List 2016-12-07 Mars Mars Reconnaissance Orbiter (MRO)
 HiRISE
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Subtle variations in color look like brush strokes as the lightly frosted terrain reflects light on Mars as seen by NASA's Mars Reconnaissance Orbiter.
PIA21215:
Cracks in a Crater's Ice
Full Resolution:     TIFF (15.56 MB)     JPEG (1.168 MB)
Add Image to Favorite List 2016-12-07 Mars Mars Reconnaissance Orbiter (MRO)
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Subtle variations in color look like brush strokes as the lightly frosted terrain reflects light on Mars as seen by NASA's Mars Reconnaissance Orbiter.
PIA21214:
Painting with Frost
Full Resolution:     TIFF (15.56 MB)     JPEG (806.3 kB)
Add Image to Favorite List 2016-11-22 Mars Mars Reconnaissance Orbiter (MRO)
 Shallow Subsurface Radar (SHARAD)
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Diagonal striping on this map of a portion of the Utopia Planitia region on Mars indicates the area where a large subsurface deposit rich in water ice was assessed using the Shallow Radar instrument on NASA's Mars Reconnaissance Orbiter.
PIA21138:
Location of Large Subsurface Water-Ice Deposit in Utopia Planitia, Mars
Full Resolution:     TIFF (322.1 kB)     JPEG (44.46 kB)
Add Image to Favorite List 2016-11-22 Mars Mars Reconnaissance Orbiter (MRO)
 Shallow Subsurface Radar (SHARAD)
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These two images show Shallow Radar instrument data from two tracks in a part of Mars' Utopia Planitia region where the orbiting, ground-penetrating radar on NASA's Mars Reconnaissance Orbiter detected subsurface deposits rich in water ice.
PIA21137:
Radargrams Indicating Ice-Rich Subsurface Deposit
Full Resolution:     TIFF (73.74 kB)     JPEG (21.33 kB)
Add Image to Favorite List 2016-11-22 Mars Mars Reconnaissance Orbiter (MRO)
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This vertically exaggerated view shows scalloped depressions in Mars' Utopia Planitia region, prompting the use of ground-penetrating radar aboard NASA's Mars Reconnaissance Orbiter to check for underground ice.
PIA21136:
Scalloped Terrain Led to Finding of Buried Ice on Mars
Full Resolution:     TIFF (255.2 kB)     JPEG (57.89 kB)
Add Image to Favorite List 2016-11-09 Mars Mars Reconnaissance Orbiter (MRO)
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NASA's Mars Reconnaissance Orbiter captured this image of Nili Fossae, layered bedrock as horizontal striations in the light toned sediments in the floor of a canyon near Syrtis Major.
PIA21206:
A Glimpse into History
Full Resolution:     TIFF (9.44 MB)     JPEG (889.5 kB)
Add Image to Favorite List 2016-11-09 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows the central pit feature of an approximately 20-km diameter complex crater in located just north of the Valles Marineris. A partial ring of light-toned, massive and fractured bedrock is observed.
PIA21205:
Exposed Fractured Bedrock in the Central Pit of a Crater
Full Resolution:     TIFF (9.44 MB)     JPEG (711.7 kB)
Add Image to Favorite List 2016-11-09 Mars Mars Reconnaissance Orbiter (MRO)
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This area of Amazonis Planitia to the west of the large volcano Olympus Mons was once flooded with lava as seen by NASA's Mars Reconnaissance Orbiter. A huge eruption flowed out across the relatively flat landscape.
PIA21204:
Rafted Rock
Full Resolution:     TIFF (9.44 MB)     JPEG (713.5 kB)
Add Image to Favorite List 2016-11-09 Mars Mars Reconnaissance Orbiter (MRO)
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This picture of the rim of Eos Chasma in Valles Marineris, captured by NASA's Mars Reconnaissance Orbiter, shows active erosion of the Martian surface.
PIA21203:
Trundling Boulders
Full Resolution:     TIFF (9.44 MB)     JPEG (995.7 kB)
Add Image to Favorite List 2016-11-03 Mars Mars Reconnaissance Orbiter (MRO)
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On Nov. 1, 2016, the High Resolution Imaging Science ExperNASA's Mars Reconnaissance Orbiter observed the impact site of Europe's Schiaparelli test lander, gaining the first color view of the site since the lander's Oct. 19, 2016, arrival.
PIA21132:
Schiaparelli Impact Site on Mars, in Color
Full Resolution:     TIFF (311.1 kB)     JPEG (20.66 kB)
Add Image to Favorite List 2016-10-27 Mars Mars Reconnaissance Orbiter (MRO)
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This Oct. 25, 2016, image shows the area where the European Space Agency's Schiaparelli test lander reached the surface of Mars. This image was taken by NASA's Mars Reconnaissance Orbiter.
PIA21131:
Closer Look at Schiaparelli Impact Site on Mars
Full Resolution:     TIFF (20.38 MB)     JPEG (2.661 MB)
Add Image to Favorite List 2016-10-21 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows one of two spots that likely appeared in connection with the Oct. 19, 2016, arrival of ESA's Schiaparelli test lander. An animation is available at the Photojournal.
PIA21130:
Signs of Schiaparelli Test Lander Seen From Orbit Animation Icon
Full Resolution:     TIFF (1.057 MB)     JPEG (162.8 kB)
Add Image to Favorite List 2016-10-20 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows spidery channels eroded into Martian ground. This terrain type, called spiders or 'araneiform' (from the Latin word for spiders), appears in some areas of far-southern Mars.
PIA21126:
Martian 'Spiders' in Sharper Look, Thanks to Volunteers
Full Resolution:     TIFF (3.218 MB)     JPEG (232.4 kB)
Add Image to Favorite List 2016-10-19 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows some beautiful lava flows in Amazonis Planitia. Lava isn't moving around on Mars today, but it certainly once did, and images like this one are evidence of that.
PIA21113:
Lava That Once Flowed
Full Resolution:     TIFF (5.191 MB)     JPEG (1.387 MB)
Add Image to Favorite List 2016-10-19 Mars Mars Reconnaissance Orbiter (MRO)
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In this image from NASA's Mars Reconnaissance Orbiter tectonic stresses highly modified this area of Ganges Catena, north of Valles Marineris.
PIA21112:
Wrinkle Ridges and Pit Craters
Full Resolution:     TIFF (15.56 MB)     JPEG (1.001 MB)
Add Image to Favorite List 2016-10-19 Mars Mars Reconnaissance Orbiter (MRO)
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The distinctively fluted surface and elongated hills in Medusae Fossae are caused by wind erosion of a soft fine-grained rock, as seen by NASA's Mars Reconnaissance Orbiter.
PIA21111:
Wind Carved Rock
Full Resolution:     TIFF (15.56 MB)     JPEG (873.1 kB)
Add Image to Favorite List 2016-10-19 Mars Mars Reconnaissance Orbiter (MRO)
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This image captured by NASA's Mars Reconnaissance Orbiter shows a lava channel north of Kuiper Crater in the high southern latitudes just before spring equinox.
PIA21110:
Spider Webs
Full Resolution:     TIFF (5.191 MB)     JPEG (1.679 MB)
Add Image to Favorite List 2016-10-07 Mars Mars Exploration Rover (MER)
Mars Reconnaissance Orbiter (MRO)
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This map show a portion of Endeavour Crater's western rim that includes the 'Marathon Valley' area investigated intensively by NASA's Mars Exploration Rover Opportunity in 2015 and 2016.
PIA20854:
From 'Marathon Valley' to Gully on Endeavour Rim
Full Resolution:     TIFF (41.84 MB)     JPEG (2.035 MB)
Add Image to Favorite List 2016-10-05 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows the edge of the Martian South Polar layered deposit. The stack of fine layering is highlighted by the rays of the polar sun.
PIA21105:
On the Edge of the South Pole Layered Deposit
Full Resolution:     TIFF (15.56 MB)     JPEG (795.1 kB)
Add Image to Favorite List 2016-10-05 Mars Mars Reconnaissance Orbiter (MRO)
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The Tharsis region of Mars is covered in vast lava flows, many with channels, as seen by NASA's Mars Reconnaissance Orbiter. Some channels, however, resemble features that may have been formed by water.
PIA21104:
A Long and Winding Channel in Tharsis
Full Resolution:     TIFF (5.191 MB)     JPEG (944.1 kB)
Add Image to Favorite List 2016-10-05 Mars Mars Reconnaissance Orbiter (MRO)
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This image captured by NASA's Mars Reconnaissance Orbiter shows a transition from depressed to inverted channels in the Gorgonum Basin.
PIA21103:
A Transition from Depressed to Inverted Channels in Gorgonum Basin
Full Resolution:     TIFF (15.56 MB)     JPEG (896.6 kB)
Add Image to Favorite List 2016-10-05 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows mounds of light-toned deposits within the central portion of Valles Marineris.
PIA21102:
Deposits along the Northern Wall of Melas Chasma
Full Resolution:     TIFF (15.56 MB)     JPEG (1.168 MB)
Add Image to Favorite List 2016-09-21 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows a complicated area containing various types of channels, pits and fractures near Olympica Fossae.
PIA21066:
Intersecting Channels near Olympica Fossae
Full Resolution:     TIFF (5.087 MB)     JPEG (853.2 kB)
Add Image to Favorite List 2016-09-21 Mars Mars Reconnaissance Orbiter (MRO)
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This image captured by NASA's Mars Reconnaissance Orbiter shows viscous flow features. Currently, water-ice is stable on the Martian surface only in the polar regions.
PIA21065:
What Lies Beneath: Surface Patterns of Glacier-Like Landforms
Full Resolution:     TIFF (15.56 MB)     JPEG (1.393 MB)
Add Image to Favorite List 2016-09-21 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows a circular impact crater and an oval volcanic caldera on the southern flank of a large volcano on Mars called Pavonis Mons.
PIA21064:
The Wind-Scoured Lava Flows of Pavonis Mons
Full Resolution:     TIFF (15.4 MB)     JPEG (549.7 kB)
Add Image to Favorite List 2016-09-21 Mars Mars Reconnaissance Orbiter (MRO)
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Cerberus Fossae are a series of discontinuous fissures along dusty plains in the southeastern region of Elysium Planitia as seen by NASA's Mars Reconnaissance Orbiter.
PIA21063:
River of Sand
Full Resolution:     TIFF (15.56 MB)     JPEG (972.4 kB)
Add Image to Favorite List 2016-09-15 Mars Mars Reconnaissance Orbiter (MRO)
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This image taken by NASA's Mars Reconnaissance Orbiter covers an area about 8 miles wide in the northern Arabia Terra region of Mars. Researchers estimate the stream and the lakes it linked held water at some time in the range of 2-3 billion years ago.
PIA20837:
Outflow Stream from Relatively Recent Martian Lake
Full Resolution:     TIFF (4.784 MB)     JPEG (973.5 kB)
Add Image to Favorite List 2016-09-08 Mars Mars Reconnaissance Orbiter (MRO)
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This image captured by NASA's Mars Reconnaissance Orbiter shows a candidate future landing site in the Nili Patera region.
PIA21040:
A Human Bird's Eye View of Mars
Full Resolution:     TIFF (15.56 MB)     JPEG (986.1 kB)
Add Image to Favorite List 2016-09-08 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows a large field of sand dunes on Kaiser Crater. They are partially free of seasonal ice, with the contrast making it easy to see the ripples.
PIA21039:
A Streamlined Form in Lethe Vallis
Full Resolution:     TIFF (5.191 MB)     JPEG (1.19 MB)
Add Image to Favorite List 2016-09-08 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows a large field of sand dunes on Kaiser Crater. They are partially free of seasonal ice, with the contrast making it easy to see the ripples.
PIA21038:
Frosty Alcoves on Kaiser Crater Dunes
Full Resolution:     TIFF (12.95 MB)     JPEG (549.2 kB)
Add Image to Favorite List 2016-09-08 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows a candidate landing site in the Mawrth Vallis region for ESA's ExoMars rover, planned to launch in 2020.
PIA21029:
The Color Wonderland of Mawrth Vallis
Full Resolution:     TIFF (15.56 MB)     JPEG (1.019 MB)
Add Image to Favorite List 2016-08-24 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows the northern terminus of an outflow channel located in the volcanic terrains of Amenthes Planum.
PIA21023:
Ancient Streamlined Islands of the Palos Outflow Channel
Full Resolution:     TIFF (5.191 MB)     JPEG (1.097 MB)
Add Image to Favorite List 2016-08-24 Mars Mars Reconnaissance Orbiter (MRO)
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At the edge of Mars' permanent North Polar cap, NASA's Mars Reconnaissance Orbiter sees an exposure of the internal layers, each with a different mix of water ice, dust and dirt.
PIA21022:
North Polar Cap Layers and Ledges
Full Resolution:     TIFF (15.56 MB)     JPEG (1.169 MB)
Add Image to Favorite List 2016-08-24 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows many small craters over a larger degraded one in the northern lowlands. These small craters are smoother and shallower than their counterparts closer to the equator.
PIA21021:
Small Expanded Craters in the Northern Lowlands
Full Resolution:     TIFF (15.56 MB)     JPEG (1.068 MB)
Add Image to Favorite List 2016-07-29 Mars Mars Reconnaissance Orbiter (MRO)
 HiRISE
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Martian gullies as seen in the top image from NASA's Mars Reconnaissance Orbiter resemble gullies on Earth that are carved by liquid water.
PIA20763:
Adding Composition Data About Mars Gullies Animation Icon
Full Resolution:     TIFF (2.43 MB)     JPEG (137.9 kB)
Add Image to Favorite List 2016-07-15 Mars Mars Reconnaissance Orbiter (MRO)
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The central portion of this image from NASA's Mars Reconnaissance Orbiter spacecraft features a mildly-winding depression carved by water. Helas basin was likely formed around four billion years ago by a giant asteroid or comet impact.
PIA20815:
A Meandering Channel on Hellas' Rim
Full Resolution:     TIFF (5.191 MB)     JPEG (1.547 MB)
Add Image to Favorite List 2016-07-15 Mars Mars Reconnaissance Orbiter (MRO)
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Large impact craters rebound from the initial shock, raising deep bedrock to the surface in the central uplift of the crater as seen by NASA's Mars Reconnaissance Orbiter spacecraft.
PIA20814:
Colorful Bedrock in the Central Uplift of an Impact Crater
Full Resolution:     TIFF (15.56 MB)     JPEG (737.1 kB)
Add Image to Favorite List 2016-07-15 Mars Mars Reconnaissance Orbiter (MRO)
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This region of Xanthe Terra has mostly been contracted due to thrust faulting, but this local region shows evidence of extensional faulting, also called normal faulting. This observation is from NASA's Mars Reconnaissance Orbiter spacecraft.
PIA20813:
Faulting Mars
Full Resolution:     TIFF (15.56 MB)     JPEG (1.093 MB)
Add Image to Favorite List 2016-07-15 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter spacecraft covers mesas, or high-standing plateaus, to the north and pits, or low-standing, depressions to the south. What formed these mesas and pits is a question not so easy to answer.
PIA20812:
Mesas and Pits
Full Resolution:     TIFF (15.56 MB)     JPEG (922 kB)
Add Image to Favorite List 2016-07-15 Mars Mars Reconnaissance Orbiter (MRO)
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Captured by NASA's Mars Reconnaissance Orbiter spacecraft, shown here are bizarre landforms in Gorgonum Basin. This basin may have contained an ancient lake, with channels draining into the lake from the sides.
PIA20811:
Einstein and Mars
Full Resolution:     TIFF (15.56 MB)     JPEG (774.3 kB)
Add Image to Favorite List 2016-07-15 Mars Mars Reconnaissance Orbiter (MRO)
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This image captured by NASA's Mars Reconnaissance Orbiter spacecraft has low-sun lighting that accentuates the many transverse ridges on this slope, extending from Euripus Mons (mountains).
PIA20745:
Glorious Glacier
Full Resolution:     TIFF (15.56 MB)     JPEG (1.259 MB)
Add Image to Favorite List 2016-07-15 Mars Mars Reconnaissance Orbiter (MRO)
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One small section of this image from NASA's Mars Reconnaissance Orbiter spacecraft shows boulders that have rolled down the slope of a crater wall. The boulders vary in size, with the largest one approximately 6 meters across.
PIA20744:
Slope Instability
Full Resolution:     TIFF (5.191 MB)     JPEG (922.9 kB)
Add Image to Favorite List 2016-07-15 Mars Mars Reconnaissance Orbiter (MRO)
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These sand dunes are a type of aeolian bedform and partly encircle the Martian North Pole in a region called Olympia Undae as seen by NASA's Mars Reconnaissance Orbiter spacecraft.
PIA20743:
North Polar Gypsum Dunes in Olympia Undae
Full Resolution:     TIFF (15.56 MB)     JPEG (1.106 MB)
Add Image to Favorite List 2016-07-08 Mars Mars Reconnaissance Orbiter (MRO)
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This map shows the frequency of carbon dioxide frost's presence at sunrise on Mars, as a percentage of days year-round, based on data from NASA's Mars Reconnaissance Orbiter.
PIA20758:
Where on Mars Does Carbon Dioxide Frost Form Often?
Full Resolution:     TIFF (620.9 kB)     JPEG (77.94 kB)
Add Image to Favorite List 2016-07-07 Mars Mars Reconnaissance Orbiter (MRO)
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The white arrows indicate locations in this scene where numerous seasonal dark streaks have been identified in the Coprates Montes area of Mars' Valles Marineris by NASA's repeated MRO observations from orbit.
PIA20757:
Numerous Seasonal 'Lineae' on Coprates Montes, Mars
Full Resolution:     TIFF (1.915 MB)     JPEG (217.1 kB)
Add Image to Favorite List 2016-07-07 Mars Mars Reconnaissance Orbiter (MRO)
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Blue dots on this map indicate sites of recurring slope lineae (RSL) in part of the Valles Marineris canyon network on Mars, from NASA's Mars Reconnaissance Orbiter.
PIA20756:
Sites with Seasonal Streaks on Slopes in Mars Canyons
Full Resolution:     TIFF (6.927 MB)     JPEG (320.1 kB)
Add Image to Favorite List 2016-06-22 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter spacecraft shows the Curiosity rover currently located on the Naukluft Plateau just north of the Bagnold Dune field.
PIA20738:
Curiosity on the Naukluft Plateau
Full Resolution:     TIFF (15.56 MB)     JPEG (826.9 kB)
Add Image to Favorite List 2016-06-09 Mars Mars Reconnaissance Orbiter (MRO)
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This graphic overlays Martian atmospheric temperature data as curtains over an image of Mars taken during a regional dust storm. Temperature data and global image were both recorded on Oct. 18, 2014, by NASA's Mars Reconnaissance Orbiter spacecraft.
PIA20747:
Mars Atmospheric Temperature and Dust Storm Tracking
Full Resolution:     TIFF (29.8 MB)     JPEG (632.6 kB)
Add Image to Favorite List 2016-06-09 Mars Mars Reconnaissance Orbiter (MRO)
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This graphic shows Martian atmospheric temperature data related to seasonal patterns in occurrence of large regional dust storms. The data shown here were collected by the Mars Climate Sounder instrument on NASA's Mars Reconnaissance Orbiter.
PIA20746:
Seasonal Temperature Pattern Indicating Martian Dust Storms
Full Resolution:     TIFF (432.2 kB)     JPEG (55.66 kB)
Add Image to Favorite List 2016-06-01 Mars Mars Reconnaissance Orbiter (MRO)
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These North Polar layered deposits, composed of ice, captured by NASA's Mars Reconnaissance Orbiter spacecraft, show what looks like drag folds, where rock layers bend (fold) before they break in a fault.
PIA20731:
Drag Folds in the North Polar Layered Deposits
Full Resolution:     TIFF (15.56 MB)     JPEG (1.33 MB)
Add Image to Favorite List 2016-06-01 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter spacecraft covers some of the plains south of Capri Chasma in eastern Valles Marineris.
PIA20730:
The Plains are Not Plain
Full Resolution:     TIFF (15.56 MB)     JPEG (1.024 MB)
Add Image to Favorite List 2016-06-01 Mars Mars Reconnaissance Orbiter (MRO)
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There is a circular feature in this observation from NASA's Mars Reconnaissance Orbiter spacecraft that appears to stand above the surrounding terrain. This feature is probably an inverted crater that was filled in with sediment.
PIA20729:
An Inverted Crater
Full Resolution:     TIFF (15.56 MB)     JPEG (956.6 kB)
Add Image to Favorite List 2016-06-01 Mars Mars Reconnaissance Orbiter (MRO)
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This image captured by NASA's Mars Reconnaissance Orbiter spacecraft targets a 3-kilometer diameter crater that occurs within the ejecta blanket of the much older Bakhuysen Crater, a 150-kilometer diameter impact crater in Noachis Terra.
PIA20728:
Beautiful Blocks of Bedrock
Full Resolution:     TIFF (15.56 MB)     JPEG (1.313 MB)
Add Image to Favorite List 2016-05-26 Mars Mars Reconnaissance Orbiter (MRO)
Viking
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This image montage features a two-dimensional radar cross section of Mars' north polar cap collected by NASA's Mars Reconnaissance Orbiter spacecraft (top), and a color image mosaic of the polar cap from NASA's Viking project (bottom).
PIA20029:
Signs of a Martian Ice Age
Full Resolution:     TIFF (2.95 MB)     JPEG (190.7 kB)
Add Image to Favorite List 2016-05-18 Mars Mars Reconnaissance Orbiter (MRO)
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Sand dunes cover much of this terrain, which has large boulders lying on flat areas between the dunes in this image captured by NASA's Mars Reconnaissance Orbiter spacecraft.
PIA15881:
Frosted Dunes
Full Resolution:     TIFF (15.56 MB)     JPEG (950.9 kB)
Add Image to Favorite List 2016-05-18 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter spacecraft the valley networks on Mars are terrains eroded by flowing water billions of years ago. Where bedrock is well exposed, a variety of colors due to altered minerals and polygonal patterns.
PIA15880:
Valley Networks in the Ancient Martian Highlands
Full Resolution:     TIFF (15.56 MB)     JPEG (1.328 MB)
Add Image to Favorite List 2016-05-18 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter spacecraft shows an exposure of bedrock on the floor of Bakhuysen Crater, an impact crater in Noachis Terra. The bedrock is highly fragmented and fractured.
PIA20588:
Bedrock Exposures on the Floor of Bakhuysen Crater
Full Resolution:     TIFF (15.56 MB)     JPEG (787 kB)
Add Image to Favorite List 2016-05-18 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter spacecraft shows a roughly 3-kilometer impact crater, formed on the sloping walls of Tithonium Chasma, part of the large Valles Marineris canyon system.
PIA20587:
On the Shape of Impact Craters
Full Resolution:     TIFF (5.191 MB)     JPEG (860.9 kB)
Add Image to Favorite List 2016-05-04 Mars Mars Reconnaissance Orbiter (MRO)
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This image captured by NASA's Mars Reconnaissance Orbiter spacecraft shows several smaller craters that formed on the floor of Saheki Crater, an 85-kilometer diameter impact crater north of Hellas Basin.
PIA20662:
A One-Kilometer Crater on the Floor of Saheki Crater
Full Resolution:     TIFF (15.56 MB)     JPEG (691.9 kB)
Add Image to Favorite List 2016-05-04 Mars Mars Reconnaissance Orbiter (MRO)
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This enhanced color image from NASA's Mars Reconnaissance Orbiter spacecraft shows several craters somewhere in the southern mid-latitudes of Mars.
PIA20661:
Southern Winter Frost Accumulations
Full Resolution:     TIFF (15.4 MB)     JPEG (546.5 kB)
Add Image to Favorite List 2016-05-04 Mars Mars Reconnaissance Orbiter (MRO)
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The two linear depressions in this image from NASA's Mars Reconnaissance Orbiter spacecraft form part of the Elysium Fossae complex, a group of troughs located in the Elysium quadrangle of Mars.
PIA20660:
Troughs in Elysium Fossae
Full Resolution:     TIFF (5.191 MB)     JPEG (935.9 kB)
Add Image to Favorite List 2016-05-04 Mars Mars Reconnaissance Orbiter (MRO)
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Melas Chasma is the widest segment of Valles Marineris, the largest canyon in the Solar System as seen by Mars Reconnaissance Orbiter spacecraft. In this region, hydrated sulfate salts have been detected.
PIA20659:
Possible Sulfate Deposits in West Melas Chasma
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Add Image to Favorite List 2016-05-03 Mars 2001 Mars Odyssey
Mars Reconnaissance Orbiter (MRO)
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These mountains are in a region called Sisyphi Montes. The base image from NASA's 2001 Mars Odyssey shows a portion of the region about 130 miles. Red outlines indicate possible subglacial volcanic structures. MRO's CRISM data are at upper right.
PIA20335:
Evidence Builds for Old Under-Ice Volcanoes on Mars
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Add Image to Favorite List 2016-04-21 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter spacecraft shows part of a broad plain covered with cratered cones and domes in the Northern lowlands of Mars.
PIA20655:
Cratered Cones in Acidalia Planitia
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Add Image to Favorite List 2016-04-21 Mars Mars Reconnaissance Orbiter (MRO)
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The Nili Fossae region, located on the northwest rim of Isidis impact basin, is one of the most colorful regions of Mars, as seen here by NASA's Mars Reconnaissance Orbiter spacecraft.
PIA20644:
Many Fantastic Colors
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Add Image to Favorite List 2016-04-21 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter spacecraft was acquired to look for frost on these generally equator-facing slopes on Mars, which are visible in the shadows after enhancing the brightness levels.
PIA20643:
Gullies with Dramatic Lighting
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Add Image to Favorite List 2016-04-21 Mars Mars Reconnaissance Orbiter (MRO)
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Almost all of vast Mars' Amazonis Planitia is covered by lava flows, an area comparable to that of the entire continental United States, as seen by NASA's Mars Reconnaissance Orbiter spacecraft.
PIA20642:
Flood Lavas and Mass Extinctions
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Add Image to Favorite List 2016-04-06 Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter covers part of the chaotic terrain in Masursky Crater, and was targeted due to evidence that ejecta from Mojave Crater, to the south, may have modified the landscape.
PIA20550:
A Boulder Festival in Masursky Crater
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Add Image to Favorite List 2016-04-06 Mars Reconnaissance Orbiter (MRO)
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Jezero Crater is candidate future landing site that contains sediments deposited by at least three ancient rivers as seen by NASA's Mars Reconnaissance Orbiter spacecraft. There are some good exposures of ancient bedrock.
PIA20549:
An East Watershed for Jezero Crater
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Add Image to Favorite List 2016-04-06 Mars Reconnaissance Orbiter (MRO)
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This image captured by NASA's Mars Reconnaissance Orbiter covers the western rim of Holden Crater during northern summer. Since Holden Crater is in the Southern hemisphere of Mars, the shadows are long in northern summer (southern winter).
PIA20548:
Cubism in the Western Rim of Holden Crater
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Add Image to Favorite List 2016-04-06 Mars Reconnaissance Orbiter (MRO)
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This image shows a set of coalesced collapse pits in western Valles Marineris as seen by NASA's Mars Reconnaissance Orbiter. Fine layers are exposed in the walls of the pits, and in some places those layers are displaced by faults.
PIA20547:
Faulted Layers in Collapse Pits
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Add Image to Favorite List 2016-03-23 Mars Mars Reconnaissance Orbiter (MRO)
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The North Polar layered deposits provide a record of recent climate changes on Mars as seen by NASA's Mars Reconnaissance Orbiter spacecraft. Color variations between layers are due to differences in composition of the dust.
PIA20541:
Colorful Polar Layered Deposits
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Add Image to Favorite List 2016-03-23 Mars Mars Reconnaissance Orbiter (MRO)
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This image was targeted for NASA's Mars Reconnaissance Orbiter spacecraft to look at a candidate new crater on a lobate apron. Such aprons are often ice-rich, but the crater shows no bright material that would indicate ice.
PIA20540:
Looking for Ice
Full Resolution:     TIFF (15.56 MB)     JPEG (1.829 MB)
Add Image to Favorite List 2016-03-23 Mars Mars Reconnaissance Orbiter (MRO)
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Scientists think these polygonal fractures seen by NASA's Mars Reconnaissance Orbiter spacecraft contain chlorides, like sodium chloride or table salt, or maybe chloride of calcium or magnesium.
PIA20539:
Old Salt
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Add Image to Favorite List 2016-03-23 Mars Mars Reconnaissance Orbiter (MRO)
 HiRISE
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Alluvial fans are gently-sloping wedges of sediments deposited by flowing water. Some of the best-preserved alluvial fans on Mars are in Saheki Crater, seen here by NASA's Mars Reconnaissance Orbiter spacecraft.
PIA20538:
Stratigraphy of Alluvial Fans in Saheki Crater
Full Resolution:     TIFF (13.24 MB)     JPEG (436.8 kB)
Add Image to Favorite List 2016-03-10 Mars Mars Reconnaissance Orbiter (MRO)
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This image captured by NASA's Mars Reconnaissance Orbiter spacecraft was taken to look at seasonal frost in gullies during southern winter on Mars, with the Sun only about two degrees over the horizon (just before sunset).
PIA20480:
Night Vision
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Add Image to Favorite List 2016-03-10 Mars Mars Reconnaissance Orbiter (MRO)
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West of NASA's Curiosity landing site, this image from NASA's Mars Reconnaissance Orbiter spacecraft along the northwestern floor of Gale Crater is between Aeolis Mons (informally called 'Mt. Sharp') and the crater rim.
PIA20479:
The Northwest Floor of Gale Crater
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Add Image to Favorite List 2016-03-10 Mars Mars Reconnaissance Orbiter (MRO)
 HiRISE
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This image, acquired by NASA's Mars Reconnaissance Orbiter spacecraft, shows the eastern edge of a very large deposit of wind-blown dust that occupies Ganges Chasma.
PIA20478:
The Dune Sea of Ganges Chasma
Full Resolution:     TIFF (5.191 MB)     JPEG (788.9 kB)
Add Image to Favorite List 2016-03-09 Mars Mars Reconnaissance Orbiter (MRO)
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NASA's Mars Reconnaissance Orbiter used its HiRISE camera to obtain this view of an area with unusual texture on the southern floor of Gale Crater. An enigmatic deposit appears to have flowed into the small crater from the south.
PIA20167:
For a Decade Orbiting Mars: One Recent View
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Add Image to Favorite List 2016-02-24 Mars Mars Reconnaissance Orbiter (MRO)
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This image was acquired by NASA's Mars Reconnaissance Orbiter spacecraft just after the northern winter solstice, when Southern hemisphere shadows are longest.
PIA20472:
Frosted Gully Slopes in Shadows
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Add Image to Favorite List 2016-02-24 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter spacecraft shows Hargraves Crater, located on the northwestern margin of Isidis Basin, a region that hosts many proposed future Mars landing sites.
PIA20471:
Colorful Hargraves
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Add Image to Favorite List 2016-02-24 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter spacecraft was acquired near the Martian winter solstice, when the sun was low over the horizon at this location.
PIA20470:
Dramatic Shadows over a Fossil Glacier
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Add Image to Favorite List 2016-02-24 Mars Mars Reconnaissance Orbiter (MRO)
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Mars' permanent North Polar cap is ringed by sand dunes. In the winter and spring the dunes are covered by a seasonal cap of dry ice as seen by NASA's by NASA's Mars Reconnaissance Orbiter spacecraft.
PIA20469:
Summer Sand Dunes
Full Resolution:     TIFF (15.56 MB)     JPEG (996.1 kB)
Add Image to Favorite List 2016-02-11 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter spacecraft shows the northern rim of a crater in Deuteronilus. At the northern end, we see the crater rim and ridges inside and below that rim.
PIA20463:
A Possible Alluvial Fan
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Add Image to Favorite List 2016-02-11 Mars Mars Reconnaissance Orbiter (MRO)
 HiRISE
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NASA's Mars Reconnaissance Orbiter spacecraft captured these rounded, mysterious mounds occur along the floor of a depression in northern Arabia Terra.
PIA20462:
Rounded Mounds in Northern Arabia Terra
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Add Image to Favorite List 2016-02-11 Mars Mars Reconnaissance Orbiter (MRO)
 HiRISE
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The wind has carved features, called yardangs, one of many in this scene, and deposited sand on the floor of shallow channels between them as seen by NASA's Mars Reconnaissance Orbiter spacecraft.
PIA20461:
Wind at Work
Full Resolution:     TIFF (15 MB)     JPEG (554.4 kB)
Add Image to Favorite List 2016-02-11 Mars Mars Reconnaissance Orbiter (MRO)
 HiRISE
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The Eridania Basin is thought to have once contained a large sea. This image from NASA's Mars Reconnaissance Orbiter spacecraft shows the Gorgonum Basin, which lies along the eastern edge of Eridania.
PIA20379:
Inverted Terrain in Eridania
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Add Image to Favorite List 2016-01-27 Mars Mars Reconnaissance Orbiter (MRO)
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This image, captured by NASA's Mars Reconnaissance Orbiter spacecraft, shows the western side of an elongated pit depression in eastern Noctis Labyrinthus. Along the pit's upper wall is a light-toned layered deposit.
PIA20371:
Jarosite in Noctis Labyrinthus
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Add Image to Favorite List 2016-01-27 Mars Mars Reconnaissance Orbiter (MRO)
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This image was taken by NASA's Mars Reconnaissance Orbiter spacecraft, in one of the regions on Mars well-known for its viscous flow features (VFF), which are massive flowing deposits believed to be composed of a mixture of ice and dust.
PIA20370:
A Tale of Two Flows
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Add Image to Favorite List 2016-01-27 Mars Mars Reconnaissance Orbiter (MRO)
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NASA's Mars Reconnaissance Orbiter spacecraft has been orbiting Mars for nine years. These barchan sand dunes have been imaged at least five times already, and each time, a bit more movement is revealed.
PIA20369:
The Changing Sands
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Add Image to Favorite List 2016-01-27 Mars Mars Reconnaissance Orbiter (MRO)
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This image, taken by NASA's Mars Reconnaissance Orbiter spacecraft, is of an area on the lower southeastern flank of the volcano Elysium Mons. A small, dark pristine-appearing pit is clearly visible among the numerous small impact craters.
PIA20368:
Pit Crater near Elysium Mons
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Add Image to Favorite List 2016-01-14 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter spacecraft is of a morphologically fresh and simple impact crater in the Hellespontus region; it has a simple bowl shape and raised crater rim.
PIA20340:
A Young, Fresh Crater in Hellespontus
Full Resolution:     TIFF (4.722 MB)     JPEG (525 kB)
Add Image to Favorite List 2016-01-14 Mars Mars Reconnaissance Orbiter (MRO)
 HiRISE
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Schaeberle Crater is a large, heavily-infilled crater with many interesting features. This image NASA's Mars Reconnaissance Orbiter spacecraft shows a window into the crater fill deposit, showcasing eroding bedrock and aeolian landforms.
PIA20339:
Erosion and Deposition in Schaeberle Crater
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Add Image to Favorite List 2016-01-14 Mars Mars Reconnaissance Orbiter (MRO)
 HiRISE
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McLaughlin Crater (21.9 N, 337.6 E) is a large, approximately 95-kilometer diameter impact crater located north of Mawrth Vallis, in Arabia Terra, seen here by NASA's Mars Reconnaissance Orbiter spacecraft.
PIA20338:
Mars 2020 Candidate Landing Site in McLaughlin Crater
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Add Image to Favorite List 2016-01-14 Mars Mars Reconnaissance Orbiter (MRO)
 HiRISE
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This image from NASA's Mars Reconnaissance Orbiter spacecraft shows a water-carved channel. The channel pattern, called dendritic because of its tree, like branching running down over the rim of an ancient impact basin across the basin floor.
PIA20337:
Ancient Rivers
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Add Image to Favorite List 2015-12-23 Mars Mars Reconnaissance Orbiter (MRO)
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The striking feature in this image from NASA's Mars Reconnaissance Orbiter is a boulder-covered landslide along a canyon wall. Landslides occur when steep slopes fail, sending a mass of soil and rock to flow downhill, leaving a scarp atop the slope.
PIA20290:
Boulders on a Landslide
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Add Image to Favorite List 2015-12-23 Mars Mars Reconnaissance Orbiter (MRO)
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The arc of hills in this image from NASA's Mars Reconnaissance Orbiter spacecraft is the rim of an old and infilled impact crater. The sediments that were deposited within the crater have since formed polygonal cracks.
PIA20289:
A Frost Enhanced Landscape
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Add Image to Favorite List 2015-12-23 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter spacecraft shows an interesting collection of kilometer-scale craters with flat and smooth floors. The craters themselves may be caused by debris from a distant larger impact.
PIA20288:
Icy Erosion
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Add Image to Favorite List 2015-12-10 Mars Mars Reconnaissance Orbiter (MRO)
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This image acquired by NASA's Mars Reconnaissance Orbiter spacecraft in September, shows Curiosity as it was exploring the boundary between two rock units: the light-toned Murray Formation and the overlying and darker-toned Stimson unit.
PIA20211:
Curiosity Trek
Full Resolution:     TIFF (15.56 MB)     JPEG (873.1 kB)
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