Humphrey on the Inside

This false-color image highlights mysterious and sparkly dust-like material that is created when the soil in this region is disturbed.

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...

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 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...

Locations of landers and rovers on Mars.

This is one of the first images beamed back to Earth shortly after the Mars Exploration Rover Spirit landed on the red planet.

This July 18, 2017, image from the navigation camera (Navcam) on the mast of NASA's Mars Exploration Rover Opportunity provides a look back to the crest of Endeavour Crater's rim after the rover be...

The designated landing site for the first Mars Exploration Rover mission is Gusev Crater, seen here in its geological context from NASA Viking images.

In the Payload Hazardous Servicing Facility, an overhead crane lowers the Mars Exploration Rover (MER) aeroshell toward a rotation stand.

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.

See how Mars Exploration Rover team members take on the demands of driving a rover millions of miles away from Earth.

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...

This series of images shows simulated views of a darkening Martian sky blotting out the Sun from NASA’s Opportunity rover’s point of view, with the right side simulating Opportunity’s current view ...

NASA's Mars Exploration Rover Spirit has this view northward from the position at the north edge of the "Home Plate" plateau where the rover will spend its third Martian winter.

Members of the Mars Exploration Rovers Assembly, Test and Launch Operations team gather around Rover 2 and its predecessor, a flight spare of the Pathfinder mission's Sojourner rover, named Marie C...

Late on Feb. 12, 2019, mission controllers at NASA’s Jet Propulsion Laboratory in Pasadena, California, sent the last commands to ask NASA’s Opportunity rover on Mars to call home. 

6th Year Anniversary Graphic

NASA's Mars Exploration Rover Opportunity recorded the component images for this self-portrait about three weeks before completing a decade of work on Mars.

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

A portion of an exposure of bedrock dubbed "Larry's Outcrop" shows little layering in this view, in contrast to nearby outcrops called "Methuselah" and "Jibsheet."

The "keys" to NASA's Mars rovers are in the capable hands of the official rover drivers. Learn how they operate the vehicles from millions of miles away in this 60-second video from NASA's Jet Prop...

This image shows the rock dubbed "Humphrey" and the circular areas on the rock that were wiped off by the rover.

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

On Earth, a fast runner takes a few hours to complete a marathon. On Mars, it's taken 11 years. NASA's Opportunity rover crossed that finish line in 2015.

Opportunity captured this vista of "Victoria Crater" from the viewpoint of "Cape Verde," one of the promontories that are part of the scalloped rim of the crater.