Artist concept of Mars Reconnaissance Orbiter

Dark, seasonal flows emanate from bedrock exposures at Palikir Crater on Mars in this image from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter.

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

A hill with a V-shaped collapse structure, two craters and a circular fracture pattern — possibly the remains of a buried impact crater — appear to form the face of a bear on the Mars surface. This...

With the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) instrument just above his head, a technician at NASA’s Kennedy Space Center works on the Mars Reconnaissance Orbiter spacecraft...

NASA's Mars Reconnaissance Orbiter dips into the thin martian atmosphere to adjust its orbit in this artist's concept illustration.

Shalbatana Vallis is a large channel with steep walls and a flat floor that may have formed by water draining from nearby Ganges Chasma. Here a section of the wall collapsed and produced a landslid...

NASA's Mars rover Curiosity left the "Glenelg" area on July 4, 2013, on a "rapid transit route" to the entry point for the mission's next major destination, the lower layers of Mount Sharp.

This image acquired on January 27, 2019 by NASAs Mars Reconnaissance Orbiter, shows the extensive central peak complex of Hale Crater.

This colorful image acquired on May 21, 2018 by NASA's Mars Reconnaissance Orbiter shows clays within the Eridania basin region. A large lake may have once existed here.

This area of Mars is shaped by lava flows from volcanic eruptions.

This area at the base of Mount Sharp on Mars includes a pale outcrop, called "Pahrump Hills," that NASA's Curiosity Mars rover investigated from September 2014 to March 2015, and the "Artist's Driv...

This comparison of before-and-after images shows two spots that likely appeared in connection with the Oct. 19, 2016, Mars arrival of the European Space Agency's Schiaparelli test lander. The image...

A Martian dust devil roughly 12 miles (20 kilometers) high was captured winding its way along the Amazonis Planitia region of Northern Mars on March 14, 2012 by the High Resolution Imaging Science ...

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 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 picture of a heart-shaped feature in Arabia Terra on Mars was taken on May 23, 2010, by the Context Camera (CTX) on NASA's Mars Reconnaissance Orbiter.

Sand dunes such as those seen in this image have been observed to creep slowly across the surface of Mars through the action of the wind.

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...

This close-up image of a dust storm on Mars was acquired by the Mars Color Imager instrument on NASA's Mars Reconnaissance Orbiter on Nov. 7, 2007.

This view of layered rocks on the floor of McLaughlin Crater shows sedimentary rocks that contain spectroscopic evidence for minerals formed through interaction with water.

Sand dunes often accumulate in the floors of craters. In this region of Lyot Crater, NASA's Mars Reconnaissance Orbiter (MRO) shows a field of classic barchan dunes on Jan. 24, 2018.

This oblique view with moderate vertical exaggeration shows the portion of the rim of Endeavour crater given the informal name "Spirit Point." This is the location where the team operating NASA's ...

This HiRISE image covers the southwest portion of the terraces and floor of Holden Crater situated in southwest Margaritifer Terra.

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

This image shows a portion of the central mound in the impact crater Gale that is of interest to scientists because it is composed of light-toned layered deposits.