Mars Exploration Rover team members with rover

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

NASA's Mars Exploration Rover Opportunity used its navigation camera (Navcam) to record this image of the northern end of "Solander Point," a raised section of the western rim of Endeavour Crater.

This close-up image taken by Spirit highlights the nodular nuggets that cover the rock dubbed "Pot of Gold."

This color view of a mineral vein called "Homestake" comes from the panoramic camera (Pancam) on NASA's Mars Exploration Rover Opportunity.

NASA's Mars Exploration Rover Spirit has been making tracks on Mars for seven months now, well beyond its original 90-day mission. The rover traveled more than 3 kilometers (2 miles) to reach the "...

This is the Spirit panoramic camera's "Lookout" panorama, acquired on the rover's 410th to 413th martian days, or sols (Feb. 27 to Mar. 2, 2005).

NASA's Opportunity Mars rover, working on Mars since January 2004, passed marathon distance in total driving on March 24, 2015. This map shows the rover's entire traverse from landing to that point.

While driving eastward toward the northwestern flank of "McCool Hill," Spirit's wheels churned up the largest amount of bright soil discovered so far in the mission.

An artist's concept portrays a NASA Mars Exploration Rover on the surface of Mars.

Bekah Sosland was an eighth-grade student in Fredericksburg, Texas, when NASA's Mars Exploration Rovers Spirit and Opportunity landed on Mars in January 2004.

Mars Exploration Rover parachute deployment testing in the world's largest wind tunnel at NASA's Ames Research Center, Moffet Field, Calif.

The nose cone of the rocket separates during the launch phase and the Mars Exploration Rover is sent on a seven-month journey to Mars.

This map updates progress that NASA's Mars Exploration Rover Opportunity is making toward reaching a driving distance equivalent to a marathon footrace. It indicates the rover position on March 5, ...

This stereo anaglyph looking toward the northeast across "Endurance Crater" in Mars' Meridiani Planum region was assembled from frames taken by the navigation camera on NASA's Mars Exploration Rove...

This stereo view shows the "Murray Ridge" portion of the western rim of Endeavour Crater on Mars. It appears three-dimensional when seen through blue-red glasses with the red lens on the left. NASA...

NASA's Mars Exploration Rover Opportunity, working on Mars since January 2004, passed 25 miles of total driving on the July 27, 2014. The gold line on this map shows Opportunity's route from the la...

An elongated crater called "Spirit of St. Louis," with a rock spire in it, dominates this scene from the panoramic camera (Pancam) on NASA's Mars Exploration Rover Opportunity.

NASA's Mars Exploration Rover Opportunity used its navigation camera to capture the component images for this stereo, 360-degree panorama near the ridgeline of Endeavour Crater's western rim. The v...

"Marathon Valley" on Mars opens to a view across Endeavour Crater in this scene from the Pancam of NASA's Mars rover Opportunity. The scene merges many exposures taken during April and May 2016. Th...

Spirit acquired this mosaic while investigating the area east of the elevated plateau known as "Home Plate" in the "Columbia Hills." The trench exposed a patch of nearly pure silica, with the comp...

In this navigation camera raw image, NASA's Opportunity Rover looks back over its own tracks on Aug. 4, 2010. NASA's Jet Propulsion Laboratory, a division of Caltech in Pasadena, manages the Mars E...

Suspended by an overhead crane in the Payload Hazardous Servicing Facility, the Mars Exploration Rover (MER) aeroshell is guided by workers as it moves to a rotation stand.

Download a PDF of the Spirit and Opportunity Lithograph.

Protected by large airbags, the lander falls away from the parachute, landing safely on Mars.

This scene from NASA's Mars rover Opportunity shows "Wharton Ridge," which forms part of the southern wall of "Marathon Valley" on the rim of Endeavour Crater. The ridge's name honors the memory of...