6th Year Anniversary Graphic

Download a PDF of the Mars Exploration Rover Fact Sheet.

Team members reflect on Spirit's six-years of roving Mars.

NASA's twin robot geologists, the Mars Exploration Rovers, will launch toward Mars in 2003 in search of answers about the history of water on Mars.

This is a look inside a soil trench or drift dubbed 'Serpent' after the rover successfully dug into the side of the drift.

These side-by-side images were taken by the Pan Camera (Pancam) on NASA's Opportunity rover. They're actually the same image; the left version is how the image originally came down, due to data dro...

NASA's Mars Exploration Rover Opportunity has been working on Mars since landing inside Eagle Crater on Jan. 25, 2004 (Universal Time; evening of Jan. 24, Pacific Standard Time).

This July 7, 2017, scene from the Navcam on NASA's Opportunity Mars rover shows a view from the upper end of "Perseverance Valley" on the inner slope of Endeavour Crater's rim. At left, the valley...

Even after the landers and airbags safely bounce to a complete stop on Mars, the challenges of getting to Mars continue. It will take each rover a minimum of nine days to emerge from its lander coc...

Artist's concept of controlling the rover from Earth, scientists drive the rover along Mars' surface inspecting geological features.

NASA's Mars Exploration Rover Opportunity recorded this view of the summit of "Cape Tribulation," on the western rim of Endeavour Crater on the day before the rover drove to the top.

This scene from NASA's Mars Exploration Rover Opportunity shows "Lunokhod 2 Crater," which lies south of "Solander Point" on the west rim of Endeavour Crater.

A grooved ridge called "Rocheport" on the rim of Mars' Endeavour Crater spans this stereo scene from NASA's Mars rover Opportunity. The view combines images from left eye and right eye of the rover...

As NASA's Mars Exploration Rover Opportunity neared the ninth anniversary of its landing on Mars, the rover was working in the 'Matijevic Hill' area seen in this stereo view from Opportunity's pano...

NASA's Mars Exploration Rover Opportunity recorded this view just after reaching the summit of "Cape Tribulation," on the western rim of Endeavour Crater, on Jan. 6, 2015, the 3,894th Martian day, ...

Opportunity used its panoramic camera (Pancam) to acquire this view of "Solander Poin." The southward-looking scene, presented in false color, shows Solander Point on the center horizon, "Botany Ba...

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 image taken by the panoramic camera onboard Opportunity shows the rover's now-empty lander, the Challenger Memorial Station, at Meridiani Planum, Mars.

The rock abrasion tool on NASA's Mars Exploration Rover Spirit ground two holes in a relatively soft rock called "Wooly Patch" near the base of the "Columbia Hills" inside Gusev Crater on Mars.

This synthetic image of the Spirit Mars Exploration Rover on top of a rock called "Jibsheet" was produced using "Virtual Presence in Space" technology.

This view of a rock called "Block Island," the largest meteorite yet found on Mars.

In the fourth season of “On a Mission” we’ll be transported to the Red Planet with all five of NASA’s Mars rovers.

On March 20, 2004, NASA's Mars Exploration Rover Opportunity used a wheel to dig a trench revealing subsurface material beside the lander hardware that carried the rover to the surface of Mars 55 M...

The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter acquired this image of the Opportunity rover on the southwest rim of "Santa Maria" crater on New...

Researchers used NASA's Mars Exploration Rover Opportunity to find a water-related mineral on the ground that had been detected from orbit, and found it in the dark veneer of rocks on the rim of En...

An artist's concept portrays a NASA Mars Exploration Rover on the surface of Mars. Two rovers have been built for 2003 launches and January 2004 arrival at two sites on Mars. Each rover has the mob...