Drainage Near Crater in Terra Sabaea

The MRO Context Camera, CTX, at Malin Space Science Systems in 2004, before it was delivered and mounted on the spacecraft.

This image combines a photograph of seasonal dark flows on a Martian slope with a grid of colors based on data collected by a mineral-mapping spectrometer observing the same area.

This view from the HiRISE camera on NASA's Mars Reconnaissance Orbiter shows part of an area on Mars where narrow rock ridges, some as tall as a 16-story building, intersect at angles forming corne...

This map shows the thickness of the north polar layered deposits on Mars as measured by the Shallow Radar instrument on NASA's Mars Reconnaissance Orbiter.

This image features an exhumed crater in Meridiani Planum, an equatorial region where the rover Opportunity has been exploring the Martian surface since January 2004. An exhumed crater is one that ...

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These dunes may be active today, but we haven't yet observed them at significantly different times to measure the movement.

Icy Layers and Climate Fluctuations near the Martian North Pole

The large impact crater known as Stickney is the largest crater on the Martian moon Phobos.

How can you communicate with Mars spacecraft when the Sun is in the way? Learn more about 'solar conjunction' in this 60-second video.

This map shows the route on lower Mount Sharp that NASA's Curiosity followed between April 19, 2015, and Nov. 5, 2015. During this period the mission investigated silica-rich rock targets includin...

Intra-Crater Structure in NW Hellas Basin, Mars

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...

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...

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The eastern margin of a rippled dune in Herschel Crater on Mars moved an average distance of three meters (about three yards) between March 3, 2007 and December 1, 2010, as seen by NASA's Mars Reco...

Recent small craters discovered by the High Resolution Imaging Science Experiment camera on NASA's Mars Reconnaissance Orbiter expose buried ice in the middle latitudes of Mars.

The long, sinuous raised ridges on this fan of material are thought to be inverted stream channels. These ridges may have been low-lying streambeds that hardened and then turned into ridges when th...

This series of images from NASA's Mars Reconnaissance Orbiter successively zooms into "spider" features -- or channels carved in the surface in radial patterns -- in the south polar region of Mars.

This is a close-up of the area in the vicinity of the Pathfinder landing site. Major features are named. The white box outlines the area of the image, where hardware is seen.

Mars has extremely large temperature changes from winter to summer compared to the Earth. It gets cold enough to freeze carbon dioxide out of the atmosphere during the winter, but this ice is unsta...

In the novel and movie "The Martian," an astronaut's adventures take him to the rim of Mawrth Crater. This image from the HiRISE camera on NASA's Mars Reconnaissance Orbiter shows the nature of thi...

These two infrared images of comet C/2013 A1 Siding Spring were taken by the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) aboard NASA's Mars Reconnaissance Orbiter on Oct. 19, 2014....

This image acquired on January 23, 2019 by NASAs Mars Reconnaissance Orbiter, shows the western portion of a well-preserved (recent) impact crater in Ladon Basin.

NASA Science missions circle Earth, the Sun, the Moon, Mars and many other destinations within our solar system, including spacecraft that look out even further into our universe. The Science Fleet...