The far side of the Moon has its own versions of the Grand Canyon—two of them, in fact! A new study explains how these deep ...
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 ten minutes.
NASA / SVS / Ernest T. Wright It didn’t take long for the moon to get its grand canyons. Vallis Schrödinger and Vallis Planck are two long channels near the lunar south pole. The canyons ...