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Artist concept of Mars Reconnaissance Orbiter
July 14, 2009
Credit
NASA/JPL-Caltech
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Back-and-forth blinking of this two-image animation shows movement of a sand dune on Mars. The images are part of a study published by Nature on May 9, 2012, reporting movement of Martian sand dune...
Advancing Dune in Nili Patera, Mars
This unnamed impact crater is about 8 kilometers in diameter and contains numerous gullies.
Bright Gully Deposits on Mars
A rippled dune front in Herschel Crater on Mars moved an average of about one meter (about one yard) between March 3, 2007 and December 1, 2010, as seen in these images from NASA's Mars Reconnaissa...
Rippling Dune Front in Herschel Crater on Mars
This image is located within Northern Sinus Meridiani, a region of ridged terrains and extensive stratigraphic layering.
Crater with Surrounding Bench in Sinus Meridiani (3-D)
This image shows part of Ladon Vallis that is located within Ladon basin.
Light-Toned Layered Rock Outcrop in Ladon Valles (3-D)
This sequence of three HiRISE images 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...
'Baby Spider': Growth of a Martian Trough Network
This image covers a "fresh-looking" impact crater with a diameter of about 2 kilometers (1.2 miles).
Many Gullies in a Fresh Impact Crater (3-D)
These long, smooth features are sand ridges shaped by the constant martian wind. They run perpendicular, or at right angles to, the direction of the wind and often found in channels and crater inte...
MRO Spots Sand Stripes
Two parallel tracks left by the wheels of NASA's Curiosity Mars rover cross rugged ground in this portion of a Dec. 11, 2013, observation by the High Resolution Imaging Science Experiment (HiRISE) ...
Curiosity Rover Tracks, Viewed from Orbit in December 2013
Two types of wind-blown sedimentary deposits are pictured in this scene of the floor of Ius Chasma in the Valles Marineris.
Dunes and Ripples in Valles Marineris (3-D)
NASA's Mars Exploration Rover Opportunity has been working on Mars since landing inside Eagle Crater on Jan. 25, 2004 (Universal Time; evening of Jan. 24, Pacific Standard Time).
Opportunity's First Decade of Driving on Mars
This pair of before (left) and after (right) images from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter documents formation of a new channel on...
A New Gully Channel in Terra Sirenum, Mars
This image acquired on December 11, 2018 by NASAs Mars Reconnaissance Orbiter, shows a surface texture of interconnected ridges and troughs, referred to as brain terrain, found throughout the mid-l...
The Slow Charm of Brain Terrain
Gullies on Martian sand dunes, like these in Matara Crater, have been very active, with many flows in the last ten years. In this image from NASA's Mars Reconnaissance Orbiter frost in and around t...
Gullies of Matara Crater
The largest crater in this mosaic of images taken by the Context Camera on NASA's Mars Reconnaissance Orbiter is Endeavour Crater, which is 22 kilometers (14 miles) in diameter.
Endeavour Crater in Context
A new map of Mars' gravity made with three NASA spacecraft is the most detailed to date, providing a revealing glimpse into the hidden interior of the Red Planet. Satellites always orbit a planet's...
Mars Gravity Map
This animation blinks between two images of NASA's Mars Phoenix Lander hardware around the mission's 2008 landing site on far-northern Mars. By late 2017, dust obscures much of what was visible tw...
NASA's Phoenix Lander on Mars, Nearly a Decade Later
This image shows a lava channel, which lies just to the east of the largest volcano in the solar system: Olympus Mons.
Lava Flow Near the Base of Olympus Mons
Blue dots on this map indicate sites of recurring slope lineae (RSL) in part of the Valles Marineris canyon network on Mars. RSL are seasonal dark streaks that may be indicators of liquid water. Th...
Sites with Seasonal Streaks on Slopes in Mars Canyons
A path resembling a dotted line from the upper left to middle right of this image is the track left by an irregularly shaped, oblong boulder as it tumbled down a slope on Mars before coming to rest...
An Irregular, Upright Boulder on Mars
Stages in the seasonal disappearance of surface ice from the ground around the Phoenix Mars Lander are visible in these images taken on Feb. 8, 2010, (left) and Feb. 25, 2010, during springtime on ...
Ice Around Phoenix Lander Continues to Lessen in Spring
Caught in Action: This image shows avalanches on North Polar Scarps.
Caught in Action: Avalanches on North Polar Scarps
The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter acquired this image of the Opportunity rover on the southwest rim of "Santa Maria" crater on New...
Mars Orbiter Sees Rover Opportunity at Crater Edge (Annotated)
This rainbow-colored map shows underground water ice on Mars. Cool colors are closer to the surface than warm colors; black zones indicate areas where a spacecraft would sink into fine dust; the ou...
A Water Ice Map for Mars
A rippled patch of sand in Becquerel Crater on Mars moved about two meters (about two yards) between November 24, 2006 and September 5, 2010, as observed in these images taken by NASA's Mars Reconn...
Blowing in the Martian Wind
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