6th Year Anniversary Graphic

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...

A self-portrait of NASA's Mars Exploration Rover Opportunity taken in late March 2014 (right) shows that much of the dust on the rover's solar arrays has been removed since a similar portrait from ...

If a human with perfect vision donned a spacesuit and stepped onto the martian surface, the view would be as clear as this sweeping panorama taken by Spirit.

A self-portrait of NASA's Mars Exploration Rover Opportunity taken by the rover's panoramic camera (Pancam) in late March 2014 shows effects of recent winds removing much of the dust from the rover...

After bouncing to a stop, the lander's petals unfold and the Mars Exploration Rover drives onto the surface of Mars.

NASA's Mars Exploration Rover Opportunity used its panoramic camera (Pancam) to capture this false-color panorama of the "Matijevic Hill" area on the "Cape York" segment of the western rim of Endea...

Details of the Gusev Crater designated landing site are added with topographic information and higher-resolution imaging from instruments on the Mars Global Surveyor and Mars Odyssey orbiters.

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

Mars Exploration Rover parachute deployment testing

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.

This image is a cropped version of the last 360-degree panorama taken by the Opportunity rover's Pancam from May 13 through June 10, 2018. The panorama appears in 3D when seen through blue-red glas...

One of two Mars Exploration Rovers sits inside its cruise stage waitingto undergo environmental testing at NASA's Jet PropulsionLaboratory.

NASA Administrator Jim Bridenstine discusses the successful completion of the Opportunity Mars rover mission during a news briefing at the agency's Jet Propulsion Laboratory in Pasadena, California...

NASA's Mars Exploration Rover Opportunity set a one-day distance record for martian driving on the rover's 383rd martian day, or sol, which began on Feb. 19, 2005. Opportunity rolled 177.5 meters (...

NASA's Mars Exploration Rover Opportunity captured this southward uphill view after beginning to ascend the northwestern slope of "Solander Point" on the western rim of Endeavour Crater.

Gazing across the landscape of the "Columbia Hills" in Gusev Crater on Mars, scientists saw hints of tilted rock layers across the area traversed by the Spirit rover.

The deck of NASA's Mars Exploration Rover Spirit is so dusty that the rover almost blends into the dusty background in this image assembled from frames taken by the panoramic camera (Pancam) during...

As Opportunity crept farther into "Endurance Crater," the dune field on the crater floor appeared even more dramatic.

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

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.

This chart illustrates comparisons among the distances driven by various wheeled vehicles on the surface of Earth's moon and Mars.  

In late November 2005 while descending "Husband Hill," Spirit took the most detailed panorama so far of the "Inner Basin," one of the rover's target destination.

Eleven years and two months after its landing on Mars, the total driving distance of NASA's Opportunity Mars rover surpassed the length of a marathon race: 26.219 miles (42.195 kilometers). This ma...

On the horizon in the right half of this panoramic view is an area of Mars informally named "Matijevic Hill," in commemoration of an influential rover-team leader.

The boulder-studded ridge in this scene recorded by NASA's Mars Exploration Rover Opportunity is "McClure-Beverlin Escarpment," informally named for Jack Beverlin and Bill McClure, engineers who on...