Mars Exploration Rover team members with rover

A forward-looking view of a portion of the "Columbia Hills" captured by Spirit shows the expansive hills ahead. It features "Husband Hill" to the left, "West Spur" in the center, and a talus (rock...

Spirit examined spectacular layered rocks exposed at "Home Plate."

This view from Opportunity shows the tracks left by a drive executed with more onboard autonomy than has been used on any other drive by a Mars rover.

During four months prior to the fourth anniversary of its landing on Mars, Opportunity examined rocks inside an alcove called "Duck Bay" in the western portion of Victoria Crater.

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.

NASA's Mars Exploration Rover Opportunity observed this outcrop on the "Murray Ridge" portion of the rim of Endeavour Crater as the rover approached the 10th anniversary of its landing on Mars.

This set of images from NASA’s Mars Reconnaissance Orbiter shows a fierce dust storm is kicking up on Mars, with rovers on the surface indicated as icons.

NASA's Mars rover Opportunity edged 3.7 meters (12 feet) closer to the top of the "Duck Bay" alcove along the rim of "Victoria Crater" during the rover's 952nd Martian day, or sol (overnight Sept. ...

The "Columbia Hills" flank Spirit's path in this view.

A lunar eclipse, a solar eclipse and Mars has a close encounter with a comet.

The first episode documents the hurdles leading up to both launches. From Mother Nature being uncooperative to a problem with the cork insulation on the rocket, lift-off was no small feat. Ultimate...

The left image shows an extreme close-up of round, blueberry-shaped formations in the martian soil near a part of the rock outcrop at Meridiani Planum called Stone Mountain.

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...

This image is a cropped version of the last 360-degree panorama taken by the Opportunity rover's Panoramic Camera (Pancam) from May 13 through June 10, 2018. The view is presented in false color to...

Taken on June 10, 2018 (the 5,111th Martian day, or sol, of the mission) this “noisy,” incomplete image was the last data NASA's Opportunity rover sent back from Perseverance Valley on Mars. 

Buzz Aldrin, an Apollo 11 astronaut who walked on the moon, makes a holographic appearance in 'Destination: Mars,' a mixed-reality tour of a part of Mars that NASA's Curiosity rover has explored.

As Opportunity continued to traverse from "Erebus Crater" toward "Victoria Crater," the rover navigated along exposures of bedrock between large, wind-blown ripples.

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

This beautiful scene reveals a tremendous amount of detail in Spirit's surroundings at a place called "Winter Haven," where the rover spent many months parked on a north-facing slope in order to ke...

Kris Capraro adds the finishing touches of realistic color to the model meteorite.

The designated landing site for the second Mars Exploration Rover mission is Meridiani Planum, seen here in its geological context from NASA Viking images.

John Callas, project manager for NASA’s Mars Exploration Rovers mission, makes the call ending the last formal session via NASA’s Deep Space Network (DSN) for the Opportunity rover at Mars on Feb. ...

This Sept. 21, 2016, scene from the panoramic camera (Pancam) on NASA's Mars Exploration Rover Opportunity shows "Spirit Mound" overlooking the floor of Endeavour Crater. The mound stands near the ...

Download a PDF of the 2013 - 2014 Mars Calendar.

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...