The Mars rover Spirit has been stuck on the side of a sandy hill since May. NASA has built a light-weight Spirit replica and a sandbox to imitate its Martian predicament. Computer simulations are running now but actual moves on Mars won't happen until October.
According to NASA "There is a very real possibility that Spirit may not be able to get out, and we want to give Spirit the very best chance." The wildly successful rovers Spirit and companion Opportunity are now five years into a mission that was supposed to last 90 days.
Tuesday, September 15, 2009
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