PHOTOS: Postcards From Mars

Opportunity rover still going after 8 years on Martian surface.

PHOTOS: Postcards From Mars

Opportunity explored the walls of a crater called Victoria, where a long-ago impact had exposed layers of Martian bedrock. On one edge of Victoria was this cliff, nicknamed Cape Verde. For scale, NASA superimposed an image of the Opportunity rover, which is about the size of a golf cart.
(NASA/JPL-Caltech/Cornell University)