The Triumphant Journeys of Martian Robots

Since 1960 we've been attempting to explore the red planet, and along the way there have been countless failures and lost spacecraft that attest to just how hard it is to fly those 35 million miles from here to there. However, there have also been success stories, like the twin rovers Opportunity and Spirit, who have… » 3/25/08 3:11pm 3/25/08 3:11pm