Countdown Nears: Final Tests

A rippled dune front in Herschel Crater on Mars moved an average of about two meters (about two yards) between March 3, 2007 and December 1, 2010, as seen in these images from NASA's Mars Reconnais...

This HiRISE image shows a group of cones, shield-like features, and round mounds.

This image acquired on January 25, 2019 by NASAs Mars Reconnaissance Orbiter, shows Ius Chasma, a major section of the western portion of the giant Valles Marineris trough.

This image shows dunes near the north pole of Mars. The north pole is surrounded by a vast "sea" of basaltic sand dunes, and the dunes imaged here are similar to barchan dunes that are commonly fo...

This view combines information from two instruments on NASA's Mars Reconnaissance Orbiter to map color-coded composition over the shape of the ground in a small portion of the Nili Fossae plains re...

Martian gullies as seen from HiRISE on NASA's Mars Reconnaissance Orbiter resemble gullies on Earth that are carved by liquid water. However, when they are observed with the addition of mineralogic...

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.

Eridania Region Outcrops

The HiRISE camera on NASA's Mars Reconnaissance Orbiter got its best view yet of the agency's InSight lander on Sept. 23, 2019.

This Oct. 25, 2016, image from the HiRISE camera on NASA's Mars Reconnaissance Orbiter shows the area where the Europe's Schiaparelli test lander struck Mars, with magnified insets of three sites w...

This graphic illustrates where Mars mineral-mapping from orbit has detected minerals that can indicate where a volcano erupted beneath an ice sheet. The site is far from any ice sheet on modern Mar...

This image acquired on December 3, 2018 by NASAs Mars Reconnaissance Orbiter, shows a cross-section of a dune field. Dune shape depends on several factors, including the amount of sand present and ...

Caught in Action: This image shows avalanches on North Polar Scarps.

Mars Reconnaissance Orbiter Project Manager Jim Graf hugs Jet Propulsion Laboratory Director Dr. Charles Elachi after a successful orbit insertion on March 10, 2006.

This map of an area within the Arabia Terra region on Mars shows where hydrologic modeling predicts locations of depressions that would have been lakes (black), overlaid with a map of the preserved...

NASA's Mars Exploration Rover Opportunity has been on the western rim of Endeavour Crater in Meridiani Planum for about two years. Until May 2013, it was investigating sedimentary layers that are ...

This image shows the context for orbital observations of exposed rocks that had been buried an estimated 5 kilometers (3 miles) deep on Mars.

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...

A variety of landforms, including isolated hills, eroded mesas, dark eroded sediments, and dunes are seen within an area called "Aram Chaos."

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...

MRO took this image of layered, sedimentary rocks on the floor of an impact crater north of Eberswalde Crater. Billions of years ago there may have been a lake in this crater.

A path resembling a dotted line from the upper left to middle right of this image is the track left by an irregularly shaped, oblong boulder as it tumbled down a slope on Mars before coming to rest...

The total distance driven by NASA's Mars rover Curiosity passed the one-mile mark a few days before the first anniversary of the rover's landing on Mars.

Among the many discoveries by NASA's Mars Reconnaissance Orbiter since the mission was launched on Aug. 12, 2005, are seasonal flows on some steep slopes, possibly shallow seeps of salty water. Thi...

This near-global map was captured by NASA’s Mars Reconnaissance Orbiter using its Compact Reconnaissance Imaging Spectrometer for Mars, or CRISM. The yellow square indicates the Nili Fossae region ...