text: More Evidence for Past Water on Mars Summary - (Aug 22, 2004) NASA #39;s Spirit rover has dug up plenty of evidence on slopes of  quot;Columbia Hills quot; that water once covered the area.
inputs: More Evidence for Past Water on Mars Summary - (Aug 22, 2004) NASA #39;s Spirit rover has dug up plenty of evidence on slopes of  quot;Columbia Hills quot; that water once covered the area.