Artist concept of Glaciers on Mars

This crater has gullies on its southwest-facing walls and rim, as well as and what appears to be two separate instances of lobate (ear-shaped) material associated to its interior gullies.

This image lies in the middle of a candidate landing site in the Northeast part of Syrtis Major, a huge shield volcano, and near the Northwest rim of Isidis Planitia, a giant impact basin.

Recurring slope lineae (RSL) are active flows on warm Martian slopes that might be caused by seeping water.

Two 2001 images from NASA's Mars Global Surveyor orbiter show a dramatic change in the planet's appearance during a dust storm.

Intra-Crater Structure in NW Hellas Basin, Mars

A configuration interpreted as the United Kingdom's Beagle 2 Lander, with solar panels at least partially deployed, is indicated in this composite of two images from the High Resolution Imaging Sci...

Eridania Region Outcrops

NASA's Mars Reconnaissance Orbiter has clocked more than a decade of service at the Red Planet and has yielded scientific discoveries and magnificent views of a distant world. These images taken by...

Mars Reconnaissance Orbiter captures the springtime thaw of seasonal carbon dioxide ice on Mars.

NASA's Mars Reconnaissance Orbiter, nearing the 10th anniversary of its arrival at Mars, used its High Resolution Imaging Science Experiment (HiRISE) camera to obtain this view of an area with unus...

This image, taken with the High Resolution Imaging Science Experiment (HiRISE) camera, shows distinct bands of alternating tone and brightness within the "Murray Formation" on Mars.

The High-Resolution Imaging Science Experiment (Hi-RISE) camera aboard NASA's Mars Reconnaissance Orbiter captured this avalanche plunging down a 1,640-foot-tall (500-meter-tall) cliff on May 29, 2...

The arm and the remote sensing mast of the Mars rover Curiosity each carry science instruments and other tools for NASA's Mars Science Laboratory mission.

This image from NASA's Mars Reconnaissance Orbiter shows Aram Chaos, an ancient impact crater that lies within in the Southern Highlands of Mars. Uplifted blocks are composed largely of the iron-ox...

This set of images from NASA’s Mars Reconnaissance Orbiter shows a fierce dust storm is kicking up on Mars, with rovers on the surface indicated as icons.

Candor Chasma is one of the major canyons within Valles Marineris. The floor of this canyon consist of many layers of light-toned sediments that have been folded and faulted, giving them the wavy a...

This feature has a strange appearance, as if the crater has feet with toes sticking out of two sides. Let's try to explain this.

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-u...

The High-Resolution Imaging Science Experiment aboard NASA's Mars Reconnaissance Orbiter provides this view of Olympus Mons, the tallest known volcano in the solar system.

This image from the NASA Mars Reconnaissance Orbiter shows an impact scar on Mars made by pieces of the NASA Mars Science Laboratory spacecraft that the spacecraft shed just before entering the Mar...

This image acquired on February 7, 2019 by NASAs Mars Reconnaissance Orbiter, shows Mawrth Vallis, a place on Mars that has fascinated scientists because of the clays and other hydrated minerals de...

This map traces where NASA's Mars rover Curiosity drove between landing at a site subsequently named "Bradbury Landing," and the position reached during the mission's 123rd Martian day, or sol, (De...

The Mars Color Imager (MARCI) camera on NASA's Mars Reconnaissance Orbiter acquired a seven-band color, wide-angle view of Mars on March 24, 2006, as part of a checkout of the orbiter's payload. Th...

NASA's Mars Reconnaissance Orbiter arrived at Mars on March 10, 2006. Over the past decade, the mission has shown how dynamic Mars remains today, as well as how diverse its past environmental condi...

NASA's Mars Exploration Rover Opportunity has been on the western rim of Endeavour Crater in Meridiani Planum for about two years.