The Science Behind River Downcutting The water pressure of a river can cut deep into a riverbed. Sediments from the riverbed ...

Steep-sided underwater canyons on the continental margin bordering the Pacific Ocean off the US West Coast (State of Washington). These geological features were formed by erosion processes on the ...

The Grand Canyon in Arizona got carved by water over millions of years of slow but steady erosion. Two similarly-sized canyons on the moon got carved by flying rocks in about 10 minutes. That's ...

About 3.8 billion years ago, two massive canyons likely formed on the moon in a span of less than 10 minutes, according to new research. The extraordinary formations, each comparable in size to ...