What could NASA's Mars rover Spirit discover in Gusev Crater?

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Adam
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NASA's Mars rover Spirit has landed in Gusev Crater, and it is beaming pictures back to Earth.

http://science.nasa.gov/headlines/y2004/05jan_spirit.htm?list760961
 
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Originally posted by Adam
[link to headlines page of NASA newsletter "Express"]

that seems like a pretty good link
the page makes interesting points like
Gusev resembling dried-up lake-beds on earth
wind having swept dust off rock---convenience
dust-devil tracks
the question of whether there are carbonate rocks (which wd suggest former water)

there have been a bunch of
Spirit links at PF over the past 24 hours but this
was the first that made entire sense to me.
thanks for posting the link.