Mars Exploration Rover team members with rover

This false-color image taken by Spirit shows a group of darker rocks dubbed "Toltecs," lying to the southeast of the rover's position.The rocks are believed to be basaltic, or volcanic, in composit...

"Perseverance Valley" lies just on the other side of the dip in the crater rim visible in this view from the Navigation Camera (Navcam) on NASA's long-lived Mars Exploration Rover Opportunity, whic...

This false-color image taken by the panoramic camera onboard the Mars Exploration Rover Opportunity highlights the spherules that speckle the rock dubbed Stone Mountain

The piece of metal with the American flag on it in this image of a NASA rover on Mars is made of aluminum recovered from the site of the World Trade Center towers in the weeks after their destruction.

Researchers used the panoramic camera (Pancam) on NASA's Mars Exploration Rover Opportunity to capture this 10-second-exposure view of comet C/2013 A1 Siding Spring as it passed near Mars on Oct. 1...

This 360-degree panorama shows "Endurance Crater" and the surrounding plains of Meridiani Planum.

This full-circle panorama shows the terrain around the NASA Mars Exploration Rover Opportunity during the 3,071st Martian day, or sol, of the rover's work on Mars (Sept. 13, 2012).

This plot shows how planetary geologists are narrowing in on the composition of a rock target on Mars, known as "Esperance," located in a fracture that cuts through the Matijevic formation on the "...

This color image taken by the panoramic camera onboard the Mars Exploration Rover Opportunity shows the part of the rock outcrop dubbed Stone Mountain at Meridiani Planum, Mars.

NASA's Mars Rover Opportunity catches its own late-afternoon shadow in this dramatically lit view eastward across Endeavour Crater on Mars.

See how the scientists and engineers on Earth stretch their imaginations to design the best rover system to deal with the unpredictable dangerous terrain on Mars. Rover team members at Jet Propulsi...

This close-up view of a target rock called "Last Chance" was acquired by the microscopic imager on the arm of NASA's Mars Exploration Rover Opportunity on March 3, 2004, during the 39th Martian day...

NASA's Mars Exploration Rover Spirit obtained this stereo panorama of the surrounding Martian terrain in Gusev Crater from two positions about 10 meters (33 feet) apart. This is much greater separa...

Two generations of Rovers.

NASA's Mars Exploration Rover Opportunity recorded this stereo view of a crater informally named "Freedom 7" shortly before the 50th anniversary of the first American in space: astronaut Alan Shepa...

Artist's concept of rover using the rock abrasion tool (RAT) on the robotic arm grinds away the rock's surface, allowing scientific instruments to analyze the rock's interior.

A section of the Mars Science Laboratory's Gale Crater landing site is shown, with a representative path from the landing location toward the layered mound to the south.

This stereo view from the navigation camera on NASA's Mars Exploration Rover Opportunity shows a vista across Endeavour Crater, with the rover's own shadow in the foreground. The view spans 216 com...

This view taken by Spirit show's the "Columbia Hills" up ahead.

NASA's Opportunity Mars rover passed near this small, relatively fresh crater in April 2017, during the 45th anniversary of the Apollo 16 mission to the moon. The rover team chose to call it "Orion...

This image from the panoramic camera on NASA's Mars Exploration Rover Opportunity shows a rock called "Chocolate Hills," which the rover found and examined at the edge of a young crater called "Con...

Donc, vous voulez étudier Mars avec un atterrisseur ou un rover, mais où l’envoyer exactement? Apprenez comment les scientifiques et ingénieurs abordent cette question dans cette vidéo de 60 second...

From left: Dave Lavery, program executive for Solar System Exploration at NASA Headquarters, Dr. Ed Weiler, associate administrator, Office of Space Science, NASA Headquarters, Pe...

This collage shows the variety of soils found at landing sites on Mars.

The close camaraderie among scientists and engineers who worked on NASA’s Opportunity rover is evident in this image from Feb. 12, 2019, at NASA’s Jet Propulsion Laboratory in Pasadena, California.