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List		 Addition Date Target Mission InstrumentSort Ascending Size
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)
 HiRISE
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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 2016-06-22 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 2016-06-29 Mars Mars Reconnaissance Orbiter (MRO)
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The dunes shown here, as seen by NASA's Mars Reconnaissance Orbiter spacecraft, form distinct dots and dashes. The 'dashes' are linear dunes formed by bi-directional winds, which are not traveling parallel to the dune.
PIA20735:
Martian Morse Code
Full Resolution:     TIFF (15.56 MB)     JPEG (1.195 MB)
Add Image to Favorite List 2016-06-29 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter spacecraft samples the excellent bedrock exposures north of Terby Crater, which lies on the northern rim of the giant Hellas basin.
PIA20737:
Bedrock North of Terby Crater
Full Resolution:     TIFF (15.56 MB)     JPEG (775.2 kB)
Add Image to Favorite List 2016-06-29 Mars Mars Reconnaissance Orbiter (MRO)
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This observation from NASA's Mars Reconnaissance Orbiter spacecraft is of Noctis Labyrinthus, a highly tectonized region immediately to the west of Valles Marineris. It formed when Mars' crust stretched itself apart.
PIA20740:
Dreaming of Graben in the Labyrinth of the Night
Full Resolution:     TIFF (15.56 MB)     JPEG (765.6 kB)
Add Image to Favorite List 2016-06-29 Mars Mars Reconnaissance Orbiter (MRO)
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The giant sand dunes in Kaiser Crater, seen by NASA's Mars Reconnaissance Orbiter, experience gully erosion of the steep slip faces every year in late winter as the sun warms these slopes and seasonal carbon dioxide frost sublimates.
PIA20736:
Glowing Gullies in Kaiser Crater Dunes
Full Resolution:     TIFF (15.11 MB)     JPEG (766.1 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 2016-07-07 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 2016-07-15 Mars Mars Reconnaissance Orbiter (MRO)
 HiRISE
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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 2016-07-15 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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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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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 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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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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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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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 2016-08-24 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 2016-08-24 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 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 2016-09-08 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 2016-09-08 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)
 HiRISE
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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 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 2016-09-21 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 2016-09-21 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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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 2016-10-05 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 2016-10-05 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)
 HiRISE
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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 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 2016-10-07 Mars Mars Exploration Rover (MER)
Mars Reconnaissance Orbiter (MRO)
 HiRISE
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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 2016-10-19 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 2016-10-19 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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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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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 2016-10-20 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 2016-10-27 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 2016-11-03 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 2016-11-09 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 2016-11-09 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 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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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 2016-11-15 Mars Mars Reconnaissance Orbiter (MRO)
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This stereo view is a location where hardware from the European Space Agency's Schiaparelli test lander reached the surface of Mars on Oct. 19, 2016 as seen by NASA's Mars Reconnaissance Orbiter.
PIA21135:
Schiaparelli Impact Site on Mars, Stereo
Full Resolution:     TIFF (1.385 MB)     JPEG (70.24 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 2016-12-07 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 2016-12-07 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.
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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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)
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The steep walls of Valles Marineris sometimes fail, creating giant landslides. This provides a clean exposure of the underlying bedrock, as seen image from NASA's Mars Reconnaissance Orbiter.
PIA21217:
Colorful Bedrock Exposed in a Landslide Scarp
Full Resolution:     TIFF (15.56 MB)     JPEG (892.3 kB)
Add Image to Favorite List 2016-12-13 Mars Mars Reconnaissance Orbiter (MRO)
Mars Science Laboratory (MSL)
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This map shows the route driven by NASA's Curiosity Mars rover from the location where it landed in August 2012 to its location in December 2016, which is in the upper half of a geological unit called the Murray formation, on lower Mount Sharp.
PIA21144:
Late 2016 Map of NASA's Curiosity Mars Rover Mission
Full Resolution:     TIFF (2.946 MB)     JPEG (288 kB)
Add Image to Favorite List 2016-12-14 Mars Mars Reconnaissance Orbiter (MRO)
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In this image captured by NASA's Mars Reconnaissance Orbiter, the terrain is covered with a seasonal layer of dry ice.
PIA21271:
Fans on Crater Rims
Full Resolution:     TIFF (5.191 MB)     JPEG (1.075 MB)
Add Image to Favorite List 2016-12-14 Mars Mars Reconnaissance Orbiter (MRO)
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The image from NASA's Mars Reconnaissance Orbiter, shows a region we see many slope streaks, typically dark features on slopes in the equatorial regions on Mars.
PIA21272:
Slope Streaks or RSL?
Full Resolution:     TIFF (4.836 MB)     JPEG (569.6 kB)
Add Image to Favorite List 2016-12-14 Mars Mars Reconnaissance Orbiter (MRO)
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This image captured by NASA's Mars Reconnaissance Orbiter, shows the floor of Suzhi Crater, an approximately 25-kilometer diameter impact crater located northeast of Hellas Planitia.
PIA21273:
Possible Layers on Floor of Suzhi Crater
Full Resolution:     TIFF (15.56 MB)     JPEG (998.8 kB)
Add Image to Favorite List 2016-12-14 Mars Mars Reconnaissance Orbiter (MRO)
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NASA's Mars Reconnaissance Orbiter spies Capri Chasma, located in the eastern portion of the Valles Marineris canyon system, the largest known canyon system in the Solar System.
PIA21274:
Hematite-Rich Deposits in Capri Chasma
Full Resolution:     TIFF (13.86 MB)     JPEG (446.5 kB)
Add Image to Favorite List 2016-12-20 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows the growth of a branching network of troughs carved by thawing carbon dioxide over the span of three Martian years.
PIA21257:
'Baby Spider': Growth of a Martian Trough Network Animation Icon
Full Resolution:     TIFF (111.8 kB)     JPEG (24.75 kB)
Add Image to Favorite List 2016-12-20 Mars Mars Reconnaissance Orbiter (MRO)
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These five images from the HiRISE camera on NASA's Mars Reconnaissance Orbiter show different Martian features of progressively greater size and complexity.
PIA21258:
Possible Development Stages of Martian 'Spiders'
Full Resolution:     TIFF (5.708 MB)     JPEG (557 kB)
Add Image to Favorite List 2016-12-21 Mars Mars Reconnaissance Orbiter (MRO)
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This image of a southern mid-latitude crater was intended to investigate the lineated material on the crater floor. NASA's Mars Reconnaissance Orbiter reveals a landscape peppered by small impact craters.
PIA14450:
Secondary Craters
Full Resolution:     TIFF (13.96 MB)     JPEG (384.2 kB)
Add Image to Favorite List 2016-12-21 Mars Mars Reconnaissance Orbiter (MRO)
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Some seasonal ice on Mars is transparent so that the sunlight penetrates to the bottom of the ice, as shown in this image from NASA's Mars Reconnaissance Orbiter.
PIA14451:
Lace on Mars
Full Resolution:     TIFF (5.191 MB)     JPEG (1.415 MB)
Add Image to Favorite List 2016-12-21 Mars Mars Reconnaissance Orbiter (MRO)
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This terrain, as seen by NASA's Mars Reconnaissance Orbiter, looks like lumpy sediment on top of patterned ground. The lumpy sediment is likely just loosely consolidated because it is covered with spidery channels.
PIA14452:
Spiders on Mounds
Full Resolution:     TIFF (15.56 MB)     JPEG (1.445 MB)
Add Image to Favorite List 2016-12-21 Mars Mars Reconnaissance Orbiter (MRO)
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This crater on Mars, observed by NASA's Mars Reconnaissance Orbiter, was named after Dr. Gerald A. Soffen (February 7, 1926 - November 22, 2000), and this image covers a small portion of the crater floor.
PIA14453:
Soffen Crater Floor
Full Resolution:     TIFF (15.56 MB)     JPEG (692.6 kB)
Add Image to Favorite List 2017-01-02 Mars Mars Reconnaissance Orbiter (MRO)
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Impact craters expose the subsurface materials on steep slopes in this image observed by NASA's Mars Reconnaissance Orbiter.
PIA14454:
Hues in a Crater Slope
Full Resolution:     TIFF (15.56 MB)     JPEG (743.1 kB)
Add Image to Favorite List 2017-01-03 Mars Mars Reconnaissance Orbiter (MRO)
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Over 300 meters of layered beds are exposed in this trough of Noctis Labyrinthus, at the western edge of Valles Marineris, as observed by NASA's Mars Reconnaissance Orbiter.
PIA14455:
Light-Toned Layering in a Labyrinthus Noctis Pit
Full Resolution:     TIFF (15.56 MB)     JPEG (1.026 MB)
Add Image to Favorite List 2017-01-05 Mars Mars Reconnaissance Orbiter (MRO)
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Large impact craters have central hills or mountains, because the tremendous shock waves from the impact first compresses the ground, then causes a rebound when it becomes uncompressed. This image is from NASA's Mars Reconnaissance Orbiter.
PIA15149:
Raised Bedrock in Terra Cimmeria
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Add Image to Favorite List 2017-01-09 Mars Mars Reconnaissance Orbiter (MRO)
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The western Utopia Planitia in the Northern mid-latitudes of Mars is marked by a peculiar type of depression with scalloped edges and by a network of polygonal fractures as seen by NASA's Mars Reconnaissance Orbiter.
PIA13485:
Eroded Scallops with Layers
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Add Image to Favorite List 2017-01-10 Mars Mars Reconnaissance Orbiter (MRO)
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NASA's Mars Reconnaissance Orbiter spied this small 2 kilometer-wide crater when a meteoroid struck the ground just to the west and created a new, larger crater (not shown).
PIA13181:
Muddy Ejecta Flow
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Add Image to Favorite List 2017-01-11 Mars Mars Reconnaissance Orbiter (MRO)
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Southern spring on Mars brings sublimation of the seasonal dry ice polar cap as seen by NASA's Mars Reconnaissance Orbiter.
PIA13151:
Wide, Branching Channels
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Add Image to Favorite List 2017-01-12 Mars Mars Reconnaissance Orbiter (MRO)
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This image of a well-preserved unnamed elliptical crater in Terra Sabaea, captured by NASA's Mars Reconnaissance Orbiter, shows the complexity of ejecta deposits forming as a by-product of the impact process that shapes much of the surface of Mars.
PIA13078:
Well-Preserved Impact Ejecta and Impact Melt-Rich Deposits in Terra Sabaea
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Add Image to Favorite List 2017-01-13 Mars Mars Reconnaissance Orbiter (MRO)
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This image captured by NASA's Mars Reconnaissance Orbiter shows ancient highland channels in Eridania Valley.
PIA12968:
Smooth and Fractured Deposits in Eridania Valleys
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Add Image to Favorite List 2017-01-17 Mars Mars Reconnaissance Orbiter (MRO)
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Impact craters form when an asteroid, meteoroid, or comet crashes into a planet's surface, causing an explosion. This impact crater is a little less than 3 kilometers in diameter as seen by NASA's Mars Reconnaissance Orbiter.
PIA12328:
Crater with Exposed Layers
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Add Image to Favorite List 2017-01-18 Mars Mars Reconnaissance Orbiter (MRO)
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This color composite from NASA's Mars Reconnaissance Orbiter shows an example of bedrock that may originate from as deep as 2 miles beneath the surface.
PIA12291:
Bedrock Exhumed from the Deep
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Add Image to Favorite List 2017-01-19 Mars Mars Reconnaissance Orbiter (MRO)
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The large dark feature is a classic Martian sand dune on Wirtz Crater as seen by NASA's Mars Reconnaissance Orbiter.
PIA12289:
The Changing Dunes of Wirtz Crater
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Add Image to Favorite List 2017-01-20 Mars Mars Reconnaissance Orbiter (MRO)
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The layered bedrock in this image was brought from several kilometers of depth during the formation of this 44 kilometer wide crater in the volcanic plains of Lunae Planum as seen by NASA's Mars Reconnaissance Orbiter.
PIA12178:
The Beauty of Layered Stratigraphy
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Add Image to Favorite List 2017-01-24 Mars Mars Reconnaissance Orbiter (MRO)
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NASA's Mars Reconnaissance Orbiter spies a layer of dry ice covering Mars' south polar layer. In the spring, gas created from heating of the dry ice escapes through ruptures in the overlying seasonal ice, entraining material from the ground below.
PIA11706:
How Gas Carves Channels
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Add Image to Favorite List 2017-01-25 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows part of Gordi Dorsum in the Medusae Fossae region of Mars, where narrow rock ridges, some as tall as a 16-story building, intersect at angles forming corners of polygons.
PIA21264:
Blade-Like Martian Walls Outline Polygons
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Add Image to Favorite List 2017-01-25 Mars Mars Reconnaissance Orbiter (MRO)
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This anaglyph from NASA's Mars Reconnaissance Orbiter shows part of Gordi Dorsum in the Medusae Fossae region of Mars, shows part of an area on Mars where narrow rock ridges, some as tall as a 16-story building.
PIA21265:
Blade-Like Martian Walls Outline Polygons (Stereo)
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Add Image to Favorite List 2017-01-25 Mars Mars Reconnaissance Orbiter (MRO)
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In this image from NASA's Mars Reconnaissance Orbiter is an old degraded crater that has undergone a complex history of burial and erosion. At least two types of exposed bedrock are shown here.
PIA11705:
Contact between Two Distinct Types of Bedrock Northwest of Hellas Planitia
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Add Image to Favorite List 2017-01-27 Mars Mars Reconnaissance Orbiter (MRO)
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In the South Polar region of Mars this type of terrain may be covered by a seasonal polar cap composed of dry ice, as seen by NASA's Mars Reconnaissance Orbiter.
PIA11238:
Rectangles with Wiggly Sides
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Add Image to Favorite List 2017-02-01 Mars Mars Reconnaissance Orbiter (MRO)
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This image was taken by NASA's Mars Reconnaissance Orbiter during the Martian northern summer, thus there is no frost present on the dunes.
PIA11181:
Dunes in Northern Summer
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Add Image to Favorite List 2017-02-01 Mars Mars Reconnaissance Orbiter (MRO)
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NASA's Mars Reconnaissance Orbiter captured this image of impact ejecta, a material that is thrown up and out of the surface of a planet as a result of the impact of an meteorite, asteroid or comet.
PIA11180:
Raining Rocks
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Add Image to Favorite List 2017-02-02 Mars Mars Reconnaissance Orbiter (MRO)
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NASA's Mars Reconnaissance Orbiter observed a small portion of a dark crater floor in the Tyrrhena Terra region of Mars. This is largely ancient hard bedrock that has been cratered by numerous impacts over the eons.
PIA11179:
Hard Knocks in Tyrrhena Terra
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Add Image to Favorite List 2017-02-03 Mars Mars Reconnaissance Orbiter (MRO)
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Gullies are relatively common features in the steep slopes of crater walls, possibly formed by dry debris flows, movement of carbon dioxide frost, or perhaps the melting of ground ice, as seen by NASA's Mars Reconnaissance Orbiter.
PIA11178:
The Contrasting Colors of Crater Dunes and Gullies
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Add Image to Favorite List 2017-02-07 Mars Mars Reconnaissance Orbiter (MRO)
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The dark spots in this enhanced-color infrared image from NASA's Mars Reconnaissance Orbiter are the recent impact craters that occurred in the Tharsis region between 2008 and 2014.
PIA11176:
A Recent Cluster of Impacts
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Add Image to Favorite List 2017-02-08 Mars Mars Reconnaissance Orbiter (MRO)
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NASA's Mars Reconnaissance Orbiter has been observing Mars in sharp detail for more than a decade, enabling it to document many types of changes, such as the way winds alter the appearance of this recent impact site.
PIA21267:
Mars Reconnaissance Orbiter Observes Changes Animation Icon
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Add Image to Favorite List 2017-02-08 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter reveals an impact crater, nine kilometers in diameter, with a central peak. Impact craters of various sizes and ages can be found across the Martian surface.
PIA08395:
A Nine Kilometer Impact Crater and Its Central Peak
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Add Image to Favorite List 2017-02-09 Mars Mars Reconnaissance Orbiter (MRO)
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NASA's Mars Reconnaissance Orbiter has witnessed many surface changes over the past ten years, including hundreds of new craters formed by ongoing impacts. This particular crater is east of NASA's Spirit rover's final resting spot in Gusev Crater.
PIA21451:
Unlocking an Impact Crater's Clues
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Add Image to Favorite List 2017-02-10 Mars Mars Reconnaissance Orbiter (MRO)
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The broader scene for this image from NASA's Mars Reconnaissance Orbiter is the fluidized ejecta from Bakhuysen Crater to the southwest. A 'dragonfly' impact crater i seen with a gouged-out trench extending to the south.
PIA21454:
A Dragonfly-Shaped Crater
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Add Image to Favorite List 2017-02-13 Mars Mars Reconnaissance Orbiter (MRO)
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This color composite from NASA's Mars Reconnaissance Orbiter covers a portion of the northern central peak of an unnamed, 20-kilometer crater that contains abundant fragmental bedrock called breccia.
PIA21455:
Better Preserved on Mars than on Earth
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Add Image to Favorite List 2017-02-14 Mars Mars Reconnaissance Orbiter (MRO)
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This image captured by NASA's Mars Reconnaissance Orbiter covers a portion of a typical impact crater in Terra Sirenum. Some of the gully fans have a bluish color: these are probably quite recent deposits, less than a few tens of years old.
PIA21456:
Old Features and New
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Add Image to Favorite List 2017-02-15 Mars Mars Reconnaissance Orbiter (MRO)
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This image captured by NASA's Mars Reconnaissance Orbiter shows a portion of one of many dust devils on Mars.
PIA21457:
A Dust Devil on Hilly Terrain
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Add Image to Favorite List 2017-02-16 Mars Mars Reconnaissance Orbiter (MRO)
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NASA's Mars Reconnaissance Orbiter spied this large crescent dune in Kaiser Crater showing the scars of many types of seasonal erosional activities.
PIA21458:
Scars of Erosion
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Add Image to Favorite List 2017-02-20 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows a new impact site originally detected by the Context Camera onboard MRO. The crater is on a dusty slope, which also has several dark slope streaks due to dust avalanches.
PIA21459:
A New Crater on a Dusty Slope
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Add Image to Favorite List 2017-02-21 Mars Mars Reconnaissance Orbiter (MRO)
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Amazonis Planitia is a broad plain on Mars, covered with ancient lava. This image captured by NASA's Mars Reconnaissance Orbiter shows an interesting feature of an old lava flow.
PIA21460:
Obstacles and Wakes in Lava
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Add Image to Favorite List 2017-02-22 Mars Mars Reconnaissance Orbiter (MRO)
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NASA's Mars Reconnaissance Orbiter sees ice-rich mantling deposits accumulate from the atmosphere in the Martian mid-latitudes in cycles during periods of high obliquity.
PIA21462:
Layered Mantling Deposits in the Northern Mid-Latitudes
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Add Image to Favorite List 2017-02-23 Mars Mars Reconnaissance Orbiter (MRO)
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Much of Mars' surface is covered by fine-grained materials that hide the bedrock, but in this scene from NASA's Mars Reconnaissance Orbiter, the bedrock is well exposed except where covered by sand dunes.
PIA21463:
Layers and Dark Dunes
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Add Image to Favorite List 2017-02-27 Mars Mars Reconnaissance Orbiter (MRO)
Mars Science Laboratory (MSL)
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This map shows the two locations of a research campaign by NASA's Curiosity Mars rover mission to investigate active sand dunes inside Gale Crater on Mars.
PIA21269:
Curiosity's Bagnold Dunes Campaign: Two Types of Dunes
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Add Image to Favorite List 2017-02-27 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows a portion of the North Polar layered deposits with lines of very small pits, only about 1 meter in diameter.
PIA21464:
Polar Pits: Are They Active?
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Add Image to Favorite List 2017-02-28 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows Mars' north polar layered deposits are a thick stack of dusty water ice layers.
PIA21465:
North Polar Layers
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Add Image to Favorite List 2017-03-01 Mars Mars Reconnaissance Orbiter (MRO)
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This is a portion of an inverted fluvial channel in the region of Aeolis/Zephyria Plana, at the Martian equator as seen by NASA's Mars Reconnaissance Orbiter.
PIA21551:
Martian Meanders and Scroll-Bars
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Add Image to Favorite List 2017-03-02 Mars Mars Reconnaissance Orbiter (MRO)
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This pile of old rocks is an island surrounded by younger lava flows from Syrtis Major. This image was captured by NASA's Mars Reconnaissance Orbiter.
PIA21553:
Isidis Basin Ejecta
Full Resolution:     TIFF (15.14 MB)     JPEG (680.5 kB)
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