On January 3 2004, NASA landed Spirit, a six-wheeled robot, on Mars. Its identical twin, Opportunity, followed on January 24. The unmanned rovers, each weighing about 384 pounds, are robotic geologists. Their mission is to look for evidence of water. If
Exploring Mars, created by a group of scientists from Jet Propulsion Lab and University of California at Los Angeles, is a great place to start for school reports (try Mars at a Glance) or browsing for the fun of it.
Because traditional search engines takes days or weeks to add new sites, the best way to track a breaking news story is through the wire services.
NASA is well-known for the quality and quantity of their sites, and their coverage of the Mars rover missions is no exception.
"Mars is so much like the Earth that we have to go there and see what happened.
Maestro is a free downloadable version of the same software NASA uses to control the Spirit and Opportunity rovers.