Here is our pick of forty-two of the best pictures from the Mars Exploration Rovers (MER) mission. Spirit and Opportunity have revealed geologic formations never before seen, and have confirmed that Mars had at least one salty sea in the distant past. When you buy the "Rovers on Mars" screensaver, you will get the "MER Spacecraft 3D" screensaver absolutely FREE.
 
keywords
Rovers on Mars , Mars , rover , rovers , Spirit , Opportunity , MER , Mars Exploration Rovers , cruise configuration , spacecraft , water on Mars , Gusev , Meridiani Planum , MER-A , MER-B , screensaver , screen saver |
