One Canyon In Antarctica May Be Larger Than The Grand Canyon
The Grand Canyon, located in Arizona, is one of the largest canyons on earth. It is over a mile deep in some places, 277 miles across, and 18 miles wide at its widest. Canyons are ideal places for studying geology, and the rock layers that are exposed in the canyon’s walls enable geologists to analyze billions of years into the earth’s past.
A 2009-2010 expedition into Antarctica revealed a comparable canyon underneath the ice. It is at least a mile deep and, as far as we know, at least 62 miles long. It could potentially be much bigger; scientists haven’t been able to measure it in its entirety because of the harsh weather conditions and large amounts of ice underneath it.