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Sand dunes are among the most widespread aeolian features present on Mars.
Millipedes of Mars
Full Resolution
Newton Crater on Mars is a large basin formed by an asteroid impact that probably occurred more than 3 billion years ago. It is approximately 287 km (178 miles) across.
Gullies on Mars
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This observation shows a portion of the wall (light-toned material) and floor of a trough in the Acheron Fossae region of Mars. Many dark and light-toned slope streaks are visible on the wall of the trough surrounded by dunes.
Slope Streaks in Acheron Fossae
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A team of NASA and university scientists has achieved the first definitive detection of methane in the atmosphere of Mars. This discovery indicates the planet is either biologically or geologically active.
Mars Methane Mystery
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On May 19th, 2005, NASA's Mars Exploration Rover Spirit captured this stunning view as the Sun sank below the rim of Gusev crater on Mars.
A Martian Sunset
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This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image portrays a plethora of dark streaks created by passing dust devils during early summer in the martian southern hemisphere
Martian Dust Devil Tracks
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Part of a multispectral THEMIS infrared image of Nili Patera caldera on Syrtis Major has been superimposed on a high-resolution THEMIS visual image.
Nili Patera and Dacite Lava Flow
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The enhanced-color image taken by the microscopic imager on the Mars Exploration Rover Spirit shows the rock dubbed "Mazatzal" after a portion of its surface was brushed clean by the rover's rock abrasion tool.
Mazatzal in Color
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The European Space Agency's (ESA's) Mars Express obtained this view of an unnamed impact crater located on Vastitas Borealis, a broad plain that covers much of Mars's far northern latitudes.
Mars Crater Ice
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Mars's seasonal polar caps are composed primarily of carbon-dioxide frost.
Seasonal Processes-Omega Sublimation
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This beautiful observation shows a gorgeous pattern of dust devil tracks.
Dust Devils on Mars
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The large impact crater known as Stickney is the largest crater on the Martian moon Phobos.
Stickney Crater, Phobos
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Ancient floods carved Kasei Valles
Kasei Channels
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NASA's Mars Exploration Rover Opportunity used its panoramic camera to record this eastward horizon view on the 2,407th Martian day, or sol, of the rover's work on Mars (October 31, 2010).
East Rim of Endeavour Crater
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When the Mars Exploration Rover, Opportunity, landed on Meridiani Planum in January 2004, it quickly found what it had been sent from Earth to find: evidence of liquid water in the Martian past.
Meridiani Planum
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This mosaic was made from images taken at infrared wavelengths in daytime and nighttime by the Thermal Emission Imaging System (THEMIS) on Mars Odyssey orbiter.
Martian Mosaic
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A false-color mosaic focuses on one junction in Noctis Labyrinthus where Mars canyons meet to form a depression 4,000 meters (13,000 feet) deep.
Canyon Junction
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The battered region of Arabia Terra is among the oldest terrain on Mars.
Arabia Dunes
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On the southwest edge of the immense volcanic region of Tharsis, lava from its giant volcanoes flowed down to meet the old cratered landscape of Terra Sirenum.
Terra Sirenum
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What triggered a Martian landslide? Landslides are common features in canyons on both Earth and Mars, and they happen the same way.
Noctis Landslide
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Dunes are often found on crater floors. In the winter, at high northern latitudes, the terrain is covered by carbon-dioxide ice (dry ice).
Frost-Covered Dunes in a Crater
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Gale Crater forms a large natural repository for much of Martian geologic history.
Gale Crater's History Book
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This is an image of a central pit of an impact crater in the Martian ancient highlands.
Colorful Streaks
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NASA's Mars Exploration Rover Spirit acquired this false-color image on Mars during the rover's 746th Martian day, or sol, after using the rock abrasion tool to brush the surfaces of rock targets informally named "Stars" (left) and "Crawfords" (right).
Spirit Rover Studies Rock Outcrop at 'Home Plate'
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This is a small volcano superimposed on the flanks of a larger one of the Cerberus Tholi.
Small Floral-Shaped Volcano
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