After five years, the Mars Exploration Rovers are still studying Mars. Take a closer look at how they work.
The favorite Mars rover image: Sunset on the red planet.
Images of the red planet.
A collection of images from the MER mission over the last 2 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)
The top 10 images from Mars!› View top 10 images
Take them out for a spin.
Check the time at the landing sites, view martian landmarks and more. (Java Required)