Mars Exploration Rovers - Clearinghouse of links for the Mars Exploration Rover Mission (Spirit and Opportunity). Mars Exploration Rover 3D - A 3D Rover model and landing site simulations. Space.com - Mars Rover Special Report - Collection of articles about Spirit and Opportunity published by space.com. Mars Exploration Rover - NASA's latest news from Spirit and Opportunity. The primary goal of the robots is to search for and characterize a wide range of rocks and soils that hold clues to past water activity on Mars. NPR : Mars Rover Marks Second Anniversary of Landing - On the two-year anniversary of mars rover Spirit's landing, both rovers (Spirit and Opportunity) are going strong. The robotic geologists have provided invaluable data about whether Mars could once harbor life. [7:33 streaming audio broadcast] Mars Panoramas - Mars map and select 360-degree panoramas. Leverages the Google Maps API to present panoramas acquired by NASA's Mars Exploration Rovers Spirit and Opportunity. Mars Exploration Rover Mission - Latest news, press releases, and photos from Spirit and Opportunity.