Space/Science — HabitableZone

Space/Science » in reply to Mars Region Probably Less Watery In Past Than Thought, Says Study

re: ...actual two studies and I'm sure Ed would like the second...

because it says impactors formed Meridiani...

One paper, authored by Thomas McCollum and Bryan Hynek at the University of Colorado, suggests a massive volcanic eruption at Meridiani laid down the ash sediments that formed the bedrock. The other, written at Arizona State University by Paul Knauth and colleagues, proposes that a meteorite impact could have formed the rock structures.

The rest is here: http://www.cnn.com/2005/TECH/space/12/21/mars.water/

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