Another version of this news from MSNBC
<a href="http://www.msnbc.msn.com/id/4582649/"Martian rocks bear signs of ancient shore
Rock formed at bottom of standing saltwater, scientists say
Space/Science » in reply to NASA press conference title: "Opportunity Hits the Beach"
<a href="http://www.msnbc.msn.com/id/4582649/"Martian rocks bear signs of ancient shore
Rock formed at bottom of standing saltwater, scientists say