When we first touched down at Gusev Crater on the night of January 4, 2004, the Columbia Hills seemed impossibly far away. It was a necessary place for us to get to, though, because as we looked across the plains we quickly realized these plains were made of basaltic lava. This was stuff that was interesting but did not tell us what we really sought to know about Gusev Crater, and that is whether there had been water here. So in order to find something, in order to find something different, we had to make that mile-and-a-half drive.
-Steve Squyres
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