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List		 Addition DateSort Ascending Target Mission Instrument Size
Add Image to Favorite List 2014-08-13 Mars Mars Reconnaissance Orbiter (MRO)
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The north end of this long image from NASA's Mars Reconnaissance Orbiter shows a lava surface in southern Elysium Planitia. Small cones are common on the extensive young flood lavas in this region.
PIA18646:
The Side of Chasma Boreale
Full Resolution:     TIFF (15.56 MB)     JPEG (1.215 MB)
Add Image to Favorite List 2014-08-13 Mars Mars Reconnaissance Orbiter (MRO)
 HiRISE
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The north end of this long image from NASA's Mars Reconnaissance Orbiter shows a lava surface in southern Elysium Planitia. Small cones are common on the extensive young flood lavas in this region.
PIA18645:
Strange Cones and Flows
Full Resolution:     TIFF (5.191 MB)     JPEG (1.315 MB)
Add Image to Favorite List 2014-08-01 Mars Mars Reconnaissance Orbiter (MRO)
Mars Science Laboratory (MSL)
 HiRISE
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The main map shows landforms near NASA's Curiosity Mars rover as the rover's second anniversary of landing on Mars nears. The gold traverse line ends at Curiosity's position as of July 31, 2014 (Sol 705).
PIA18408:
Sandy Martian Valleys in Curiosity's Near Future
Full Resolution:     TIFF (25.26 MB)     JPEG (1.213 MB)
Add Image to Favorite List 2014-07-30 Mars Mars Reconnaissance Orbiter (MRO)
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Schiaparelli Crater is a 460 kilometer (286 mile) wide multi-ring structure. However, it is a very shallow crater, apparently filled by younger materials such as lava and/or fluvial and aeolian sediments as seen by NASA's Mars Reconnaissance Orbiter.
PIA18635:
Layers and Sand on the Floor of Schiaparelli Crater
Full Resolution:     TIFF (15.56 MB)     JPEG (1.025 MB)
Add Image to Favorite List 2014-07-30 Mars Mars Reconnaissance Orbiter (MRO)
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Monitoring by NASA's Mars Reconnaissance Orbiter HiRISE has shown that gully formation on Mars occurs in winter and early spring in times and places with frost on the ground.
PIA18634:
Frosty Gullies
Full Resolution:     TIFF (15.56 MB)     JPEG (1.386 MB)
Add Image to Favorite List 2014-07-30 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows what is termed a pedestal crater, so-called because the level of the surface adjacent to the crater is elevated relative to the surface of the surrounding terrain.
PIA18633:
Preserving Ice from a Vanished Terrain
Full Resolution:     TIFF (5.191 MB)     JPEG (798.5 kB)
Add Image to Favorite List 2014-07-30 Mars Mars Reconnaissance Orbiter (MRO)
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Many of the depressions in Noctis Labyrinthus contain water-bearing minerals, suggesting that water was available and persistent in this region during the Late Hesperian to Amazonian epochs on Mars, as seen by NASA's Mars Reconnaissance Orbiter.
PIA18632:
Water-Bearing Rocks in Noctis Labyrinthus
Full Resolution:     TIFF (15.56 MB)     JPEG (986.8 kB)
Add Image to Favorite List 2014-07-16 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows some interesting fractured materials on the floor of an impact crater in Arabia Terra.
PIA18625:
Ancient Lake Sediments in a Crater
Full Resolution:     TIFF (15.56 MB)     JPEG (768 kB)
Add Image to Favorite List 2014-07-16 Mars Mars Reconnaissance Orbiter (MRO)
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At Mars' North Pole is a dome of icy layers ranging up to 2 kilometers thick, roughly analogous to the Earth's ice caps in Greenland or Antarctica. This image is from NASA's Mars Reconnaissance Orbiter.
PIA18624:
The Icy Surface of the North Polar Cap
Full Resolution:     TIFF (15.56 MB)     JPEG (1.095 MB)
Add Image to Favorite List 2014-07-16 Mars Mars Reconnaissance Orbiter (MRO)
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Eridania Basin, located at the head of Ma'adim Vallis, has mounting geomorphic and spectral evidence that it may have been the site of an ancient inland sea. This image is from NASA's Mars Reconnaissance Orbiter.
PIA18623:
Ridges in Eridania Basin
Full Resolution:     TIFF (15.56 MB)     JPEG (768.2 kB)
Add Image to Favorite List 2014-07-10 Mars Mars Reconnaissance Orbiter (MRO)
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This pair of images covers one of many sites on Mars where researchers use the HiRISE camera on NASA's Mars Reconnaissance Orbiter to study changes in gullies on slopes. Changes are visible in deposits near the lower end of this gully.
PIA18400:
Changes Near Downhill End of a Martian Gully
Full Resolution:     TIFF (1.439 MB)     JPEG (144.3 kB)
Add Image to Favorite List 2014-07-10 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter covers a location that has been imaged several times to look for changes in gullies.
PIA18538:
Activity in Martian Gully
Full Resolution:     TIFF (15.56 MB)     JPEG (1.044 MB)
Add Image to Favorite List 2014-07-08 Mars Mars Reconnaissance Orbiter (MRO)
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NASA's Mars Reconnaissance Orbiter captured this image on 27 June 2014, when Curiosity had just crossed the edge of the 3-sigma landing.
PIA18581:
Curiosity Offside!
Full Resolution:     TIFF (15.56 MB)     JPEG (689.5 kB)
Add Image to Favorite List 2014-07-08 Mars Mars Reconnaissance Orbiter (MRO)
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This June 27, 2014, image from the HiRISE camera on NASA's Mars Reconnaissance Orbiter shows NASA's Curiosity Mars rover on the rover's landing-ellipse boundary, which is superimposed on the image.
PIA18399:
Curiosity Mars Rover Reaching Edge of Its Landing Ellipse
Full Resolution:     TIFF (3.467 MB)     JPEG (504.4 kB)
Add Image to Favorite List 2014-07-02 Mars Mars Reconnaissance Orbiter (MRO)
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An impact crater in Isidis Planitia observed for a fifth time by NASA's Mars Reconnaissance Orbiter.
PIA18622:
An Impact Crater in Isidis Planitia
Full Resolution:     TIFF (15.56 MB)     JPEG (682.5 kB)
Add Image to Favorite List 2014-07-02 Mars Mars Reconnaissance Orbiter (MRO)
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This image NASA's Mars Reconnaissance Orbitershows a prominently stratified transect through the rock of a mountain of material in the middle of Hebes Chasma.
PIA18621:
A Revealing Landslide in Hebes Chasma
Full Resolution:     TIFF (15.56 MB)     JPEG (599 kB)
Add Image to Favorite List 2014-07-02 Mars Mars Reconnaissance Orbiter (MRO)
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An impact crater in Isidis Planitia observed for a fifth time by NASA's Mars Reconnaissance Orbiter.
PIA18620:
Feathery Ridges
Full Resolution:     TIFF (15.56 MB)     JPEG (822.4 kB)
Add Image to Favorite List 2014-07-02 Mars Mars Reconnaissance Orbiter (MRO)
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Pavonis Mons is a giant shield volcano similar to (although larger than) those on the Big Island of Hawaii. This image is from NASA's Mars Reconnaissance Orbiter.
PIA18589:
A Giant Cave on a Giant Volcano
Full Resolution:     TIFF (15.56 MB)     JPEG (824.1 kB)
Add Image to Favorite List 2014-06-23 Mars Mars Science Laboratory (MSL)
 HiRISE
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This map shows in red the route driven by NASA's Curiosity Mars rover from its landing site at 'Bradbury Landing.' The white line shows the planned route to reach destinations on Mount Sharp. Sol 669 will complete one Martian year.
PIA18392:
Curiosity Rover's Traverse, First 663 Sols on Mars
Full Resolution:     TIFF (25.26 MB)     JPEG (1.455 MB)
Add Image to Favorite List 2014-06-23 Mars Mars Science Laboratory (MSL)
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This map shows in red the route driven by NASA's Curiosity Mars rover from the 'Bradbury Landing' location where it landed in August 2012 to nearly the completion of its first Martian year. The white line shows the planned route ahead.
PIA18391:
Curiosity's Progress on Route to Mount Sharp
Full Resolution:     TIFF (25.26 MB)     JPEG (1.565 MB)
Add Image to Favorite List 2014-06-18 Mars Mars Reconnaissance Orbiter (MRO)
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This image captured by NASA's Mars Reconnaissance Orbiter appears to show some type of mass movement of material down the wall of a mesa in Deuteronilus Mensae.
PIA18588:
Moving Mass Material on a Mesa
Full Resolution:     TIFF (15.56 MB)     JPEG (650.1 kB)
Add Image to Favorite List 2014-06-18 Mars Mars Reconnaissance Orbiter (MRO)
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The North Polar layered deposits (NPLD) are a stack of layers of ice and dust at the North Pole of Mars. The layers are thought to have been deposited over millions of years. This image is from NASA's Mars Reconnaissance Orbiter.
PIA18587:
Waiting for Dust Devils
Full Resolution:     TIFF (5.191 MB)     JPEG (1.172 MB)
Add Image to Favorite List 2014-06-18 Mars Mars Reconnaissance Orbiter (MRO)
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The North Polar layered deposits (NPLD) are a stack of layers of ice and dust at the North Pole of Mars. The layers are thought to have been deposited over millions of years. This image is from NASA's Mars Reconnaissance Orbiter.
PIA18586:
Blockfall on the North Polar Layered Deposits
Full Resolution:     TIFF (15.56 MB)     JPEG (790.1 kB)
Add Image to Favorite List 2014-06-18 Mars Mars Reconnaissance Orbiter (MRO)
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This image NASA's Mars Reconnaissance Orbiter shows dozens of dark-toned dunes in and around several craters within the rugged terrain of Terra Cimmeria.
PIA18585:
Sand Dune Catch and Release
Full Resolution:     TIFF (15.56 MB)     JPEG (743.6 kB)
Add Image to Favorite List 2014-06-04 Mars Mars Reconnaissance Orbiter (MRO)
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On Mars, alluvial fans are sometimes visible in impact crater basins, as material from the steep rims is transported radially inward to the relatively flat floor. This image is from NASA's Mars Reconnaissance Orbiter.
PIA18513:
An Alluvial Fan in a Low-Latitude Crater
Full Resolution:     TIFF (5.191 MB)     JPEG (646.5 kB)
Add Image to Favorite List 2014-06-04 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows features commonly found in dusty areas: impacts, slope streaks and bed-forms.
PIA18512:
Touring a Dusty Region
Full Resolution:     TIFF (15.56 MB)     JPEG (623.1 kB)
Add Image to Favorite List 2014-06-04 Mars Mars Reconnaissance Orbiter (MRO)
 HiRISE
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This crater, seen by NASA's Mars Reconnaissance Orbiter, is located in Meridiani Planum, about 20-kilometers northwest of where NASA's Opportunity rover landed in 2004 and about 42-kilometers northwest of Endeavour Crater's rim.
PIA18511:
A Large Crater in Meridiani Planum
Full Resolution:     TIFF (280.2 kB)     JPEG (73.14 kB)
Add Image to Favorite List 2014-06-04 Mars Reconnaissance Orbiter (MRO)
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Called 'draa,' ripples, transverse aeolian ridges (known as TARs), dunes, are all observed by NASA's Mars Reconnaissance Orbiter in this Juventae Chasma image.
PIA18510:
The Draa of Mars
Full Resolution:     TIFF (15.56 MB)     JPEG (1.014 MB)
Add Image to Favorite List 2014-05-22 Mars Mars Reconnaissance Orbiter (MRO)
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This April 6, 2014, image from NASA's Mars Reconnaissance Orbiter shows numerous landslides in the vicinity of where an impact crater was excavated in March 2012.
PIA18385:
Landslides Near Fresh Crater on Mars
Full Resolution:     TIFF (1.097 MB)     JPEG (56.47 kB)
Add Image to Favorite List 2014-05-22 Mars Mars Reconnaissance Orbiter (MRO)
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The largest crater associated with a March 2012 impact on Mars has many smaller craters around it, revealed in this image from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter.
PIA18384:
Large, Fresh Crater Surrounded by Smaller Craters
Full Resolution:     TIFF (4.033 MB)     JPEG (174.3 kB)
Add Image to Favorite List 2014-05-22 Mars Mars Reconnaissance Orbiter (MRO)
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A large new crater, seen by NASA's Mars Reconnaissance Orbiter, appear slightly asymmetric in shape, and measures 159 x 143 feet (48.5 x 43.5 meters) in diameter, making it the largest new crater detected on Mars by MRO to date.
PIA18772:
Global Eyes on an Impact Prize
Full Resolution:     TIFF (5.191 MB)     JPEG (700.7 kB)
Add Image to Favorite List 2014-05-22 Mars Mars Reconnaissance Orbiter (MRO)
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The deep chasm that formed on the polar cap edge is identified as an area of strong down-slope winds and has a clear connection to Mars' largest dune field, Olympia Undae as observed by NASA's Mars Reconnaissance Orbiter.
PIA18771:
At the Edge of a Polar Cap
Full Resolution:     TIFF (15.56 MB)     JPEG (796.4 kB)
Add Image to Favorite List 2014-05-22 Mars Mars Reconnaissance Orbiter (MRO)
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This observation from NASA's Mars Reconnaissance Orbiter shows an incredible diversity of ancient lava tubes and impact craters filled with sediment on the flank of Arsia Mons.
PIA18649:
The Busy Flank of Arsia Mons
Full Resolution:     TIFF (5.191 MB)     JPEG (682.4 kB)
Add Image to Favorite List 2014-05-22 Mars Mars Reconnaissance Orbiter (MRO)
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Right past the sharp, but warped rim of this ancient impact crater are deposits of winter frost, which show up as blue in enhanced color as seen by NASA's Mars Reconnaissance Orbiter.
PIA18648:
What Gullies Can Say
Full Resolution:     TIFF (15.56 MB)     JPEG (696.7 kB)
Add Image to Favorite List 2014-05-21 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows impact craters.
PIA17482:
New Impact Site
Full Resolution:     TIFF (280.2 kB)     JPEG (95.43 kB)
Add Image to Favorite List 2014-04-30 Mars Mars Reconnaissance Orbiter (MRO)
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Nili Patera is one of the most active dune fields on Mars. Continuously monitored by the HiRise instrument onboard NASA's Mars Reconnaissance Orbiter, a new image is acquired about every six weeks.
PIA18244:
The Active Dunes of Nili Patera
Full Resolution:     TIFF (15.56 MB)     JPEG (786.7 kB)
Add Image to Favorite List 2014-04-30 Mars Mars Reconnaissance Orbiter (MRO)
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Olympia Undae is a large field of sand dunes surrounding Mars' North Polar ice cap. High latitude covers them with water and carbon dioxide frost in the winter so they are illuminated. NASA's Mars Reconnaissance Orbiter views these best in summer.
PIA18243:
Changing Dunes and Ripples in Olympia Undae
Full Resolution:     TIFF (15.56 MB)     JPEG (700.2 kB)
Add Image to Favorite List 2014-04-30 Mars Mars Reconnaissance Orbiter (MRO)
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The objective of this observation by NASA's Mars Reconnaissance Orbiter was to examine the edge of impact ejecta from a crater to the north-west of this area (north is up, west is to the left).
PIA18242:
Sunken and Pitted Ejecta
Full Resolution:     TIFF (15.56 MB)     JPEG (1.028 MB)
Add Image to Favorite List 2014-04-30 Mars Mars Reconnaissance Orbiter (MRO)
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Yardangs are streamlined hills that are carved by wind erosion from bedrock. NASA's Mars Reconnaissance Orbiter viewed these yardangs which can look like the hull of a boat.
PIA18241:
Yardangs Forming Near Gordii Dorsum
Full Resolution:     TIFF (15.56 MB)     JPEG (734.8 kB)
Add Image to Favorite List 2014-04-25 Mars Mars Reconnaissance Orbiter (MRO)
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In this Mars Reconnaissance Orbiter view of the Curiosity rover mission's waypoint called 'the Kimberley,' the red dot indicates the location of a sandstone target, 'Windjana,' selected for close-up inspection.
PIA18085:
Location of Mars Sandstone Target 'Windjana'
Full Resolution:     TIFF (729.4 kB)     JPEG (45.28 kB)
Add Image to Favorite List 2014-04-16 Mars Mars Reconnaissance Orbiter (MRO)
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This image shows black gold, that is: organic material, which could be a biomarker (sign of past life), the holy grail of Mars exploration. This image is from NASA's Mars Reconnaissance Orbiter.
PIA18227:
Curiosity Ready to Drill for Gold at the Kimberley
Full Resolution:     TIFF (15.56 MB)     JPEG (735.3 kB)
Add Image to Favorite List 2014-04-16 Mars Mars Reconnaissance Orbiter (MRO)
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This image covers a 26-kilometer-wide impact crater northeast of the Hellas impact basin as observed by NASA's Mars Reconnaissance Orbiter.
PIA18226:
A Big Block of Red Bedrock
Full Resolution:     TIFF (15.56 MB)     JPEG (570.4 kB)
Add Image to Favorite List 2014-04-16 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows a 3-kilometer-wide impact crater with gullies all along the steep inner slopes.
PIA18225:
Equatorial Gullies on Mars
Full Resolution:     TIFF (15.56 MB)     JPEG (886.3 kB)
Add Image to Favorite List 2014-04-16 Mars Mars Reconnaissance Orbiter (MRO)
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A surprise landslump in Melas Chasma was observed by NASA's Mars Reconnaissance Orbiter.
PIA18224:
A Surprise Landslump in Melas Chasma
Full Resolution:     TIFF (15.56 MB)     JPEG (662.5 kB)
Add Image to Favorite List 2014-04-16 Mars Mars Reconnaissance Orbiter (MRO)
Mars Science Laboratory (MSL)
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NASA's Curiosity Mars rover and its tracks are visible in this view combining information from three observations by the HiRISE camera on NASA's Mars Reconnaissance Orbiter. You need 3-D glasses to view this image.
PIA18082:
Stereo View of Curiosity and Rover Tracks at 'the Kimberley,' April 2014
Full Resolution:     TIFF (34.5 MB)     JPEG (791.9 kB)
Add Image to Favorite List 2014-04-16 Mars Mars Reconnaissance Orbiter (MRO)
Mars Science Laboratory (MSL)
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NASA's Curiosity Mars rover and tracks from its driving are visible in this view from orbit, acquired on April 11, 2014, by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter.
PIA18081:
Curiosity and Rover Tracks at 'the Kimberley,' April 2014
Full Resolution:     TIFF (5.88 MB)     JPEG (347.6 kB)
Add Image to Favorite List 2014-04-09 Mars Mars Reconnaissance Orbiter (MRO)
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This is the latest image of NASA's Opportunity rover at Solander Point, where it spend a few week investigation Pinnacle rock (the 'jelly donut') that was flipper over by the rover wheel. This observation is from NASA's Mars Reconnaissance Orbiter.
PIA18122:
Opportunity Rover on Valentine's Day 2014
Full Resolution:     TIFF (15.56 MB)     JPEG (565 kB)
Add Image to Favorite List 2014-04-09 Mars Mars Reconnaissance Orbiter (MRO)
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Ancient lava flow in Cerberus Planitia is observed here by NASA's Mars Reconnaissance Orbiter.
PIA18121:
Chevrons on a Flow Surface in Marte Vallis
Full Resolution:     TIFF (15.56 MB)     JPEG (834.3 kB)
Add Image to Favorite List 2014-04-09 Mars Mars Reconnaissance Orbiter (MRO)
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Melas Chasma is part of the Valles Marineris canyon system, the largest canyon in the Solar System. This image was taken by NASA's Mars Reconnaissance Orbiter.
PIA18120:
Finding Faults in Melas Chasma
Full Resolution:     TIFF (5.191 MB)     JPEG (747.3 kB)
Add Image to Favorite List 2014-04-09 Mars Mars Reconnaissance Orbiter (MRO)
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Recurring slope lineae (RSL) may be due to active seeps of water. These dark flows are abundant along the steep slopes of ancient bedrock in Coprates Chasma as seen in this image from NASA's Mars Reconnaissance Orbiter.
PIA18119:
Recurring Slope Lineae in Coprates Chasma
Full Resolution:     TIFF (15.56 MB)     JPEG (572.3 kB)
Add Image to Favorite List 2014-04-09 Mars Mars Reconnaissance Orbiter (MRO)
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Why are these dunes different colors? Sand on Mars is typically dark in tone, as it commonly derived from volcanic rocks like lava flows as shown by NASA's Mars Reconnaissance Orbiter.
PIA17919:
Two-Color Dunes in Meridiani Terra
Full Resolution:     TIFF (15.56 MB)     JPEG (858.4 kB)
Add Image to Favorite List 2014-04-09 Mars Mars Reconnaissance Orbiter (MRO)
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This feature from NASA's Mars Reconnaissance Orbiter looks like a heart. It is located south of Ascraeus Mons, which is a large volcano within the Tharsis volcanic plateau, making it extremely likely that this feature was formed by a volcanic process.
PIA17918:
A Heart in Ascraeus Mons
Full Resolution:     TIFF (5.191 MB)     JPEG (751.7 kB)
Add Image to Favorite List 2014-04-09 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows the western rim of a well-preserved 8.5-kilometer (about 5 miles) diameter impact crater.
PIA17917:
Slumping Terraces on a Crater Wall
Full Resolution:     TIFF (5.191 MB)     JPEG (678 kB)
Add Image to Favorite List 2014-04-09 Mars Mars Reconnaissance Orbiter (MRO)
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This HiRISE image of the Opportunity rover was acquired as a coordinated 'ride-along' observation with the CRISM instrument, also onboard the Mars Reconnaissance Orbiter.
PIA17916:
Opportunity Rover's Winter Work at Murray Ridge
Full Resolution:     TIFF (15.56 MB)     JPEG (576.8 kB)
Add Image to Favorite List 2014-04-03 Mars Mars Science Laboratory (MSL)
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This map shows the route driven by NASA's Curiosity Mars rover from the 'Bradbury Landing' location where it landed in August 2012 (the start of the line in upper right) to a major waypoint called 'the Kimberley'.
PIA18076:
Curiosity Mars Rover's Route from Landing to 'The Kimberley' Waypoint
Full Resolution:     TIFF (25.26 MB)     JPEG (1.23 MB)
Add Image to Favorite List 2014-04-03 Mars Mars Science Laboratory (MSL)
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This map shows the route driven by NASA's Curiosity Mars in its approach to and April 1, 2014, arrival at a waypoint called 'the Kimberley,' which rover team scientists chose in 2013 as the location for the mission's next major investigations.
PIA18075:
Map of Curiosity Mars Rover's Drives to 'the Kimberley' Waypoint
Full Resolution:     TIFF (25.26 MB)     JPEG (1.265 MB)
Add Image to Favorite List 2014-03-26 Mars Mars Reconnaissance Orbiter (MRO)
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With its cracked, blistery appearance, this mound near the center of a very large, over 5-kilometer diameter mid-latitude crater poses an interesting question: how did this form? This image is from NASA's Mars Reconnaissance Orbiter.
PIA17910:
An Unusual Mound
Full Resolution:     TIFF (15.56 MB)     JPEG (1.045 MB)
Add Image to Favorite List 2014-03-26 Mars Mars Reconnaissance Orbiter (MRO)
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Nili Fossae, once considered a potential landing spot for the Mars Science Laboratory, has one of the largest, most diverse exposures of clay minerals as seen by NASA's Mars Reconnaissance Orbiter.
PIA17909:
A Large, Banded Angular Fragment in Nili Fossae
Full Resolution:     TIFF (15.56 MB)     JPEG (963.6 kB)
Add Image to Favorite List 2014-03-26 Mars Mars Reconnaissance Orbiter (MRO)
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This fascinating observation from NASA's Mars Reconnaissance Orbiter shows us a dark-toned mound with pits inside an impact crater.
PIA17908:
A Dark-Toned, Pitted Mound in a Crater in Northeast Arabia Terra
Full Resolution:     TIFF (15.56 MB)     JPEG (774.2 kB)
Add Image to Favorite List 2014-03-26 Mars Mars Reconnaissance Orbiter (MRO)
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This image, acquired by NASA's Mars Reconnaissance Orbiter, in southern winter over part of Asimov Crater, shows the crater appears to have been completely filled by a thick sequence of materials, perhaps including sediments and lava flows.
PIA17907:
Bedrock in a Trough in Asimov Crater
Full Resolution:     TIFF (15.56 MB)     JPEG (914.3 kB)
Add Image to Favorite List 2014-03-19 Mars Mars Reconnaissance Orbiter (MRO)
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NASA's Mars Reconnaissance Orbiter reveals that gullies, or ravines, are landforms commonly found in the mid-latitudes on Mars, particularly in the Southern highlands.
PIA17906:
A New Gully Channel in Terra Sirenum
Full Resolution:     TIFF (15.56 MB)     JPEG (754 kB)
Add Image to Favorite List 2014-03-19 Mars Mars Reconnaissance Orbiter (MRO)
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This pair of before (left) and after (right) images from NASA's Mars Reconnaissance Orbiter documents formation of a new channel on a Martian slope between 2010 and 2013, likely resulting from activity of carbon-dioxide frost.
PIA17958:
A New Gully Channel in Terra Sirenum, Mars
Full Resolution:     TIFF (1.921 MB)     JPEG (100.4 kB)
Add Image to Favorite List 2014-03-12 Mars Reconnaissance Orbiter (MRO)
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Especially bright patches, bluish in enhanced color, are due to seasonal frost that is accumulating as this hemisphere approaches winter. This image of a sand dune field in a Southern highlands crater was acquired by NASA's Mars Reconnaissance Orbiter.
PIA18118:
Dramatic Dune Destination
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Add Image to Favorite List 2014-03-12 Mars Mars Reconnaissance Orbiter (MRO)
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Many valleys occur all over Mars that reveal an extensive ancient history of liquid water erosion. This image from NASA's Mars Reconnaissance Orbiter shows a complex valley network near Idaeus Fossae.
PIA17905:
A Complex Valley Network Near Idaeus Fossae
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Add Image to Favorite List 2014-03-12 Mars Mars Reconnaissance Orbiter (MRO)
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Sandwiched between a crater nearly 4 kilometer across and a much larger and older crater over 15-kilometers in diameter is this small impact crater with light-toned material exposed in its ejecta. This image is from NASA's Mars Reconnaissance Orbiter.
PIA17904:
Craters within Craters
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Add Image to Favorite List 2014-03-12 Mars Mars Reconnaissance Orbiter (MRO)
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When impact craters are formed, the material that once resided in the subsurface is blown upward and outward, as seen in this observation from NASA's Mars Reconnaissance Orbiter.
PIA17903:
Ejecta in Excess
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Add Image to Favorite List 2014-03-05 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter captures light-toned ridges found in a large fracture located east of Holden Crater forming a curious box-like pattern.
PIA18112:
Many Small Interesting Ridges in Erythraea Fossa
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Add Image to Favorite List 2014-03-05 Mars Mars Reconnaissance Orbiter (MRO)
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A bright ice cap of frozen water covers the North Pole of Mars as seen by NASA's Mars Reconnaissance Orbiter. In winter, thin coverings of carbon dioxide and water frost covers this area and frosts finally disappear at end of the Martian spring season.
PIA18111:
Don't Get Lost in the North Polar Ice Cap
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Add Image to Favorite List 2014-03-05 Mars Mars Reconnaissance Orbiter (MRO)
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NASA's Mars Reconnaissance Orbiter spies an impact crater located in northern Sinus Meridiani has formed along the boundary of two different terrain units.
PIA18110:
A Crater Straddling Two Terrain Units
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Add Image to Favorite List 2014-03-05 Mars Mars Reconnaissance Orbiter (MRO)
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NASA's Mars Reconnaissance Orbiter shows Mars' northern-most sand dunes beginning to emerge from their winter cover of seasonal carbon dioxide (dry) ice. Dark, bare south-facing slopes are soaking up the warmth of the sun.
PIA18109:
Sand Dunes in Spring
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Add Image to Favorite List 2014-02-26 Mars Mars Reconnaissance Orbiter (MRO)
 HiRISE
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This impact crater in the region of Mars called Libya Montes, observed by NASA's Mars Reconnaissance Orbiter, shows typical gullies with alcoves at the top, channels, and depositional fans at the bottom.
PIA18116:
Equatorial Gullies
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Add Image to Favorite List 2014-02-26 Mars Mars Reconnaissance Orbiter (MRO)
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The crater in the center of this HiRISE image from NASA's Mars Reconnaissance Orbiter is unusual because there is a wide, flat bench, or terrace, between the outer rim and the inner section, making it appear somewhat like a bullseye.
PIA18115:
Craters in an Icy Surface
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Add Image to Favorite List 2014-02-26 Mars Mars Reconnaissance Orbiter (MRO)
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This southern autumn image captured by NASA's Mars Reconnaissance Orbiter offers a view of frosty dunes. The sunlight is shining on the dunes from the upper right.
PIA18114:
Frost in Dune Shadows
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Add Image to Favorite List 2014-02-26 Mars Mars Reconnaissance Orbiter (MRO)
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This dramatic image observed by NASA's Mars Reconnaissance Orbiter shows dark rippled bodies of sand, sometimes in the form of dunes, streaming through Ganges Chasma. The floor of the canyon is covered by hills and mesas.
PIA18113:
Dunes Streaming through Hills
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Add Image to Favorite List 2014-02-22 Mars Mars Reconnaissance Orbiter (MRO)
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This image shows numerous dark shapes and bright spots on a sand dune in the Northern polar regions of Mars. This observation is from NASA's Mars Reconnaissance Orbiter.
PIA17929:
Giant Gullies North of the Argyre Impact Basin
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Add Image to Favorite List 2014-02-22 Mars Mars Reconnaissance Orbiter (MRO)
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This image shows numerous dark shapes and bright spots on a sand dune in the Northern polar regions of Mars. This observation is from NASA's Mars Reconnaissance Orbiter.
PIA17928:
Shapes and Spots on a Polar Sand Dune
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Add Image to Favorite List 2014-02-22 Mars Mars Reconnaissance Orbiter (MRO)
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NASA's Mars Reconnaissance Orbiter shows light-toned deposits along Coprates Chasma slopes.
PIA17927:
Light-Toned Deposits along Coprates Chasma Slopes
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Add Image to Favorite List 2014-02-22 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows an unusual landform on the floor of Oxus Patera. Oxus Patera is an ancient, eroded depression in northern Arabia Terra.
PIA17926:
Oxus Patera Collapse Feature
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Add Image to Favorite List 2014-02-19 Mars Mars Exploration Rover (MER)
Mars Reconnaissance Orbiter (MRO)
 HiRISE
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NASA's Mars Reconnaissance Orbiter caught this view of NASA's Mars Exploration Rover Opportunity on Feb. 14, 2014. The red arrow points to Opportunity at the center of the image. Blue arrows point to tracks left by the rover in October 2013.
PIA17941:
Opportunity Rover on 'Murray Ridge' Seen From Orbit
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Add Image to Favorite List 2014-02-13 Mars Mars Reconnaissance Orbiter (MRO)
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NASA's Mars Reconnaissance Orbiter saw the saddle between two valleys named Dingo Gap-in Gale Crater-where the rover Curiosity just traversed. The gap is spanned by a single dune visible both from the ground and from orbit.
PIA17983:
Viewing Dingo Gap
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Add Image to Favorite List 2014-02-13 Mars Mars Reconnaissance Orbiter (MRO)
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One of the great strengths of the HiRISE camera onboard NASA's Mars Reconnaissance Orbiter is that its high resolution can help resolve interesting questions. Here, is the platy flow material younger than the yardang-forming material?
PIA17982:
Which Came First, the Yardang or the Platy Flow?
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Add Image to Favorite List 2014-02-13 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows a dune field in a large crater near Mawrth Vallis; some of the dunes appear to be in 'V' formation.
PIA17981:
Dunes Flying in Formation
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Add Image to Favorite List 2014-02-13 Mars Mars Reconnaissance Orbiter (MRO)
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This image shows some bright layered deposits exposed within a linear trough along the floor of the Ladon Basin as seen by NASA's Mars Reconnaissance Orbiter.
PIA17980:
Bright Sediments on the Floor of Ladon Basin
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Add Image to Favorite List 2014-02-10 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mar Reconnaissance Orbiter combines a photograph of seasonal dark flows on a Martian slope at Palikir Crater with a grid of colors based on data collected by a mineral-mapping spectrometer observing the same area.
PIA17934:
Color-Coded Clues to Composition Superimposed on Martian Seasonal-Flow Image
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Add Image to Favorite List 2014-02-10 Mars Mars Reconnaissance Orbiter (MRO)
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Dark, seasonal flows emanate from bedrock exposures at Palikir Crater on Mars in this image from the HiRISE camera on NASA's Mars Reconnaissance Orbiter. These dark, warm-season flows are called 'recurring slope lineae' or RSL.
PIA17933:
Warm-Season Flows on Martian Slope
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Add Image to Favorite List 2014-02-05 Mars Mars Reconnaissance Orbiter (MRO)
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A dramatic, fresh impact crater dominates this image taken by the HiRISE camera onboard NASA's Mars Reconnaissance Orbiter on Nov. 19, 2013. The crater is surrounded by a large, rayed blast zone.
PIA17932:
A Spectacular New Martian Impact Crater
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Add Image to Favorite List 2014-02-05 Mars Mars Reconnaissance Orbiter (MRO)
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In an area like Russell Crater, very ancient impact crater, NASA's Mars Reconnaissance Orbiter can follow changes in the terrain by comparing images taken at different times. Frost (carbon dioxide ice) is seen in this image.
PIA17986:
Fall Frost Accumulation on Russell Crater Dunes
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Add Image to Favorite List 2014-02-05 Mars Mars Reconnaissance Orbiter (MRO)
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The objective of this observation from NASA's Mars Reconnaissance Orbiter is to determine the nature of a group of what appears to be channels that trend in a west-east direction.
PIA17985:
Channels in Phlegra Montes
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Add Image to Favorite List 2014-02-05 Mars Mars Reconnaissance Orbiter (MRO)
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This observation from NASA's Mars Reconnaissance Orbiter shows sand dunes in late Northern spring on Mars, mixed with rock outcrops on the floor of a large crater.
PIA17984:
Squiggly Sand Dunes
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Add Image to Favorite List 2014-01-29 Mars Mars Reconnaissance Orbiter (MRO)
Mars Science Laboratory (MSL)
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This map shows the route that NASA's Curiosity Mars rover drove inside Gale Crater from its landing in August 2013 through Jan. 26, 2004. The rover is approaching a gap between two low scarps, 'Dingo Gap.'
PIA17765:
Traverse Map for Mars Rover Curiosity as of Jan. 26, 2014
Full Resolution:     TIFF (25.26 MB)     JPEG (1.211 MB)
Add Image to Favorite List 2014-01-23 Mars Mars Exploration Rover (MER)
Mars Reconnaissance Orbiter (MRO)
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A region known as 'Cape York' on the western rim of Endeavour Crater, where the Opportunity rover worked for 20 months, is highlighted in these images from NASA's Mars Reconnaissance Orbiter.
PIA17264:
'Cape York' Explored
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Add Image to Favorite List 2014-01-15 Mars Mars Reconnaissance Orbiter (MRO)
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The linearity of the volcanic vent shown in this image observed by NASA's Mars Reconnaissance Orbiter, in conjunction with evidence of lava flow from the vent, suggests control by combined volcano-tectonic processes.
PIA17876:
Fissure near Cerberus Fossae with Tectonic Morphologies
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Add Image to Favorite List 2014-01-15 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows chlorides that have a bright appearance and are covered by other dark materials.
PIA17875:
Looking for Salts on Mars
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Add Image to Favorite List 2014-01-15 Mars Mars Reconnaissance Orbiter (MRO)
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This image from NASA's Mars Reconnaissance Orbiter shows cones with summit pits that are very similar to cinder cones on Earth. They are also very well-preserved, peppered by only small impact craters, so they must be geologically young.
PIA17874:
Recent Volcanism in Valles Marineris
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Add Image to Favorite List 2014-01-15 Mars Mars Reconnaissance Orbiter (MRO)
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Sand dunes like those seen in this image from NASA's Mars Reconnaissance Orbiter have been observed to creep slowly across the surface of Mars through the action of the wind.
PIA17873:
Dunes on the Rim of the Hellas Impact Basin
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Add Image to Favorite List 2014-01-09 Mars Mars Reconnaissance Orbiter (MRO)
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NASA's Curiosity Mars rover and tracks left by its driving appear in this portion of a Dec. 11, 2013, observation by the HiRISE camera on NASA's Mars Reconnaissance Orbiter. The rover is near the lower-left corner of this view.
PIA17755:
Curiosity Trekking, Viewed from Orbit in December 2013
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Add Image to Favorite List 2014-01-09 Mars Mars Reconnaissance Orbiter (MRO)
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Two parallel tracks left by the wheels of NASA's Curiosity Mars rover cross rugged ground in this portion of an observation by the HiRISE camera on NASA's Mars Reconnaissance Orbiter on Dec. 11, 2013. The rover itself does not appear in this image.
PIA17754:
Curiosity Rover Tracks, Viewed from Orbit in December 2013
Full Resolution:     TIFF (15.39 MB)     JPEG (813.9 kB)
Add Image to Favorite List 2014-01-09 Mars Mars Reconnaissance Orbiter (MRO)
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This observation from NASA's Mars Reconnaissance Orbiter is of an east-facing slope in Tithonium Chasma.
PIA17859:
The Obliquity of Mars (Periodic Bedding in Tithonium Chasma)
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Add Image to Favorite List 2014-01-09 Mars Mars Reconnaissance Orbiter (MRO)
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Low lying areas in the Hellas region, which is the largest impact basin on Mars, often show complex groups of banded ridges, furrows, and pits as seen in this observation from NASA's Mars Reconnaissance Orbiter.
PIA17858:
Banded Ridges in Hellas
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Add Image to Favorite List 2014-01-09 Mars Mars Reconnaissance Orbiter (MRO)
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This observation from NASA's Mars Reconnaissance Orbiter shows a set of landforms that appears to form a nested 'chevron' pattern on a slope in Coloe Fossae. Interestingly, nearby surfaces on the same slope are all parallel.
PIA17857:
Rippled Surfaces on a Slope in Coloe Fossae
Full Resolution:     TIFF (14.75 MB)     JPEG (799.1 kB)
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