Images that provide evidence of recent water flows on Mars.› Interactive Photo Gallery
Gullies, dunes and more. See just a few highlights from the spacecraft that has orbited Mars for nearly ten years.
The Mars Rovers Spirit and Opportunity have seen quite a bit during their second Martian year.
The Mars Exploration Rovers mark two years on the red planet.› Slide show (requires Flash)
Road trip! Destination: Gusev Crater and Meridiani Planum.