New research may have solved an American mystery which has baffled geologists for a century and a half: How did a river carve ...

The finding "may be the hidden answer to more tectonic mysteries than we’ve previously realized," said geologist Adam Smith.

Rivers typically avoid massive mountain ranges–and they flow downhill, as gravity pulls water downward. However, the Green River in the U.S. state of Utah seems, in some sections, to do the opposite: ...