A megaflood may have washed across what is now Idaho nearly 50,000 years ago, carving a gorge like those seen on Mars -- a discovery that could shed light on ancient geological processes on both planets.
A megaflood may have washed across what is now Idaho nearly 50,000 years ago, carving a gorge like those seen on Mars -- a discovery that could shed light on ancient geological processes on both planets.
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