Ancient Floods and Earth Changes Holds Key to Understanding Mars
Anne Minard for National Geographic News
The formation of an Idaho canyon thousands of years ago has given scientists a clearer picture of how water sculpted the surface of Mars.
The chasm in the western United States has a shape once thought to be characteristic of slower, sustained groundwater flows, but new research suggests that was carved by ancient torrential floods.
Comparable canyons on Mars may share a similarly violent history, scientists at the University of California at Berkeley say.
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