Humphrey on the Inside

NASA's Mars Exploration Rover Spirit obtained this stereo panorama of the surrounding Martian terrain in Gusev Crater from two positions about 10 meters (33 feet) apart. This is much greater separa...

The cruise stage provides power, communication and propulsion for the rover and lander within its cocoon made up of the heatshield and backshell for the cruise to Mars.

Spirit used its microscopic imager to capture these spectacular, jagged mini-landscape on a rock called "GongGong." Wind has deposited sand and dust in the holes and crevices of the rock.

This full-circle scene combines 817 images taken by the panoramic camera (Pancam) on Opportunity.

This plot shows how planetary geologists are narrowing in on the composition of a rock target on Mars, known as "Esperance," located in a fracture that cuts through the Matijevic formation on the "...

During the three-year trek of NASA's Mars Rover Opportunity from Victoria crater to Endeavour crater, rover planners captured a horizon photograph at the end of each drive. 309 images taken during ...

This stereo view from NASA's Mars Exploration Rover Opportunity shows contrasting textures and tones of "Hinners Point," at the northern edge of "Marathon Valley," and brighter outcrop on the valle...

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.

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

This artist's illustration shows NASA's four successful Mars rovers (from left to right): Sojourner, Spirit and Opportunity, and Curiosity. The image also shows the upcoming Mars 2020 rover and a h...

NASA's Mars Exploration Rover Opportunity recorded this view of a crater informally named "Freedom 7" shortly before the 50th anniversary of the first American in space: astronaut Alan Shepard's fl...

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, ...

This graphic shows the route that NASA's Mars Exploration Rover Opportunity drove in its final approach to "Perseverance Valley" on the western rim of Endeavour Crater during spring 2017.

The close camaraderie among scientists and engineers who worked on NASA’s Opportunity rover is evident in this image from Feb. 12, 2019, at NASA’s Jet Propulsion Laboratory in Pasadena, California.

Researchers used the panoramic camera (Pancam) on NASA's Mars Exploration Rover Opportunity to capture this 10-second-exposure view of comet C/2013 A1 Siding Spring as it passed near Mars on Oct. 1...

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

Mars Exploration Rover parachute deployment testing

This synthetic image recreates what Opportunity might look like in Endurance Crater. Produced using "Virtual Presence in Space" technology at NASA's Jet Propulsion Laboratory, it combines visualiza...

The component images for this stereo, 360-degree panorama were taken by the navigation camera on NASA's Mars Exploration Rover Opportunity after the rover drove about 97 feet (29.5 meters) during t...

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

Download a PDF of the 2013 - 2014 Mars Calendar.

The aeroshell for Mars Exploration Rover 2 rests on end after rotation in the Payload Hazardous Servicing Facility.

Scientists and engineers who worked on NASA’s Opportunity rover give mission leadership a round of applause in Mission Control at NASA’s Jet Propulsion Laboratory in Pasadena, California.

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