Artist concept of Mars Reconnaissance Orbiter

The black speck circled in the lower left corner of this image is a cluster of recently formed craters spotted on Mars using a new machine-learning algorithm. This image was taken by the Context Ca...

This image (top) taken by the Shallow Radar instrument on NASA's Mars Reconnaissance Orbiter reveals the layers of ice, sand and dust that make up the north polar ice cap on Mars

This map shows the route driven by NASA's Mars rover Curiosity through the 43rd Martian day, or sol, of the rover's mission on Mars (Sept. 19, 2012).

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 image acquired on January 10, 2019 by NASAs Mars Reconnaissance Orbiter, shows large gullies on both the pole- and equator-facing slopes.

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 shows the route driven by NASA's Curiosity Mars rover from the location where it landed in August 2012 to its location in mid-November 2015, approaching examples of dunes in the "Bagnold D...

This image maps the traverse of NASA's Mars rover Curiosity from "Bradbury Landing" to "Yellowknife Bay," with an inset documenting a change in the ground's thermal properties with arrival at a dif...

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.

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...

Here is a view of Earth and its moon, as seen from Mars. It combines two images acquired on Nov. 20, 2016, by the HiRISE camera on NASA's Mars Reconnaissance Orbiter, with brightness adjusted separ...

The Electris region of Mars contains some interesting features, such as the raised-relief blocks of material visible in this image.

These two images taken by the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) show Mars' two small moons, Phobos and Deimos, as seen from the Mars Reconnaissance Orbiter's low orbit ar...

This pair of images covers one of many sites on Mars where researchers use the HiRISE camera on NASA's Mars Reconnaissance Orbiter to study changes in gullies on slopes. Changes such as the ones v...

This global map of Mars was acquired on July 31, 2012, by the Mars Color Imager instrument on NASA's Mars Reconnaissance Orbiter.

This image shows the landing site of NASA's Curiosity rover and destinations scientists want to investigate.

The Cerberus Fossae are a group of troughs in the Cerberus region of Mars that run roughly parallel to one another. They formed due to extension of the crust in the region. Some of the troughs, suc...

NASA's Curiosity Mars rover used its Navigation Camera (Navcam) to record this stereo scene of a butte called "Mount Remarkable" and surrounding outcrops at a waypoint called "the Kimberley" inside...

This artist's concept of NASA's Mars Reconnaissance Orbiter at Mars features one of its instruments -- the Mars Climate Sounder -- in action.

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...

The largest crater in this mosaic of images taken by the Context Camera on NASA's Mars Reconnaissance Orbiter is Endeavour Crater, which is 22 kilometers (14 miles) in diameter.

The Coloe Fossae region is a series of enclosed, intersecting canyons. The floors of the canyons in this image contain complex set of ridges and grooves that are generally parallel to the canyon wa...

NASA’s Perseverance Mars rover and Ingenuity helicopter were spotted on the surface of the Red Planet in this black-and-white image captured Feb. 26, 2022, by the HiRISE camera aboard NASA’s Mars R...

Back-and-forth blinking of this two-image animation shows movement of ripples covering a sand dune on Mars.

This color-enhanced view shows the terrain around the rover's landing site within Gale Crater on Mars.