Huge flood on Mars? Orbiter data shows evidence of ancient megaflood.

Huge flood on Mars: Data from the Mars Reconnaissance Orbiter hints at at extensive flooding in the Red Planet's ancient past.

By Alicia Chang, AP Science Writer / March 8, 2013

This image provided by NASA and taken by a camera aboard NASA’s Mars Reconnaissance Orbiter shows the equatorial plains region known as Elysium Planitia on Mars. Using a radar instrument aboard the spacecraft, scientists made a 3-D map of flood channels below the surface of Mars, apparently created by past flooding. The findings were reported online, March 7, in the journal Science.


NASA/AP

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