Artist concept of Glaciers on Mars

This image is located within Northern Sinus Meridiani, a region of ridged terrains and extensive stratigraphic layering. 

This artist's concept of the Mars Reconnaissance Orbiter features the spacecraft's main bus facing down, toward the red planet.

This image from orbit covers an area about 460 meters (about 1,500 feet) across, in which carbonate minerals have been identified from spectrometer observations. Fractures and possible layers are v...

This image shows layered sedimentary rocks and ripples that fill and surround an impact crater in Meridiani Planum, an equatorial region where the rover Opportunity has been exploring the Martian s...

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

This map shows five locations where fresh impact cratering has excavated water ice from just beneath the surface of Mars (sites 1 through 5) and the Viking Lander 2 landing site (VL2), in the conte...

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 image acquired on January 20, 2019 by NASAs Mars Reconnaissance Orbiter, shows a chaotic jumble of bright layered sediments, perhaps resulting from large landslides.

This picture of a heart-shaped pit was taken on 26 February 2008 by the CTX camera aboard MRO. It is approximately 2 km long. The pit is one of many adjacent to Hydaspis Chaos, a jumbled topographi...

This map of Mars shows relative locations of three types of findings related to salt or frozen water, plus a new type of finding that may be related to both salt and water.

This anaglyph from HiRISE shows erosional features formed by seasonal frost near the south pole of Mars.

A dust storm continues to envelop the Red Planet and Curiosity’s labs are back in action.

Interact with this 3D model of the Mars Reconnaissance Orbiter.

Eberswalde Crater was one of the four final landing sites considered for the MSL rover. A channel leads into the crater and the lithified remains of a delta, a fan-like feature formed when sediment...

Images of locations in Gale Crater taken from orbit around Mars reveal evidence of erosion in recent geological times and development of small scarps, or vertical surfaces.

This kickoff of a new Mars video series covers Opportunity's 14th anniversary on the Red Planet, Curiosity's spectacular panorama and ice deposits spotted by an orbiter.

This series of images shows warm-season features that might be evidence of salty liquid water active on Mars today.

This graphic shows the ongoing contributions of NASA’s rovers and orbiters during a Martian dust storm that began on May 30, 2018.

This image acquired on October 7, 2020 by NASAs Mars Reconnaissance Orbiter, shows a deposit draping the surface like a blanket.

Is frozen carbon dioxide a key to features in some Martian gullies? To find out, scientists grabbed a bag of dry ice and took a road trip.

The Mars Color Imager (MARCI), shown here with a gloved hand for scale, is designed to produce a global map to help characterize daily, seasonal and year-to-year variations in Mars' climate, provid...

NASA's Opportunity Mars rover, working on Mars since January 2004, passed marathon distance in total driving on March 24, 2015. This map shows the rover's entire traverse from landing to that point.

Impact cratering and erosion combine to reveal the composition of the Martian underground by exposing materials from the subsurface.

This set of images shows what might be hardware from the Soviet Union's 1971 Mars 3 lander, seen in a pair of images from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Ma...

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...