An ancient impact on Earth led to a cascade of cratering

Blocks of material blasted from one large crater created a wealth of smaller craters

aerial view of a large crater in Wyoming

This crater in southeastern Wyoming, roughly 60 meters across at its widest point, is just one of many that may have been created by the impact of debris blasted from a distant, larger crater.

Kent Sundell/Casper College

A bevy of craters formed by material blasted from the carving of another, larger crater — a process dubbed secondary cratering — have finally been spotted on Earth.