Sign up for free

Newsletters

Once a month
get new photos
and expert tips.

Science and Space
Main Health and Human Body Earth Space Prehistoric World A-Z

Mars Rover Self-Portrait

Photo: Mars rover Opportunity takes a self-portrait

Casting a long shadow into Mars's Endurance Crater, NASA's rover Opportunity—and its twin, Spirit, on the other side of the planet—were expected to lose power and die within a few months. Instead they kept piling up the evidence for ancient Martian water.

Photograph courtesy NASA/JPL and Cornell University