This chart illustrates comparisons among the distances driven by various wheeled vehicles on the surface of Earth's moon and Mars. Of the vehicles shown, the NASA Mars rovers Opportunity and ...

On the 3,309th Martian day, or sol, of its mission on Mars (May 15, 2013) NASA's Mars Exploration Rover Opportunity drove 263 feet (80 meters) southward along the western rim of Endeavour Crater. ...

NASA's Mars rover Curiosity used its front left Hazard-Avoidance Camera for this image of the rover's arm over the drilling target "Cumberland" during the 275th Martian day, or sol, of the rover's ...

This set of images from cameras on NASA's Mars Reconnaissance Orbiter documents the appearance of a new cluster of impact craters on Mars. The orbiter has imaged at least 248 fresh craters, or crater ...

These two images, taken five Martian days (sols) apart by the front hazard-avoidance camera on NASA's Mars Exploration Rover Opportunity, document the Martian sky above the rover's Endeavour Crater ...

This map shows the location of "Cumberland," the second rock-drilling target for NASA's Mars rover Curiosity, in relation to the rover's first drilling target, "John Klein," within the southwestern ...

This patch of bedrock, called "Cumberland," has been selected as the second target for drilling by NASA's Mars rover Curiosity. The rover has the capability to collect powdered material from inside ...

This image shows the ratio of the argon isotope argon-36 to the heavier argon isotope argon-38, in various measurements. The point farthest to the right designates a new (2013) measurement of the ...