Impact Craters on Earth

An impact crater is a depression in the surface of a body formed when a meteoroid or comet hits its surface. Explore impact craters on Earth, which are usually not as obvious as the impact craters on the Moon that most people are familiar with. On Earth, erosion often hides these features or obliterates them almost entirely, so they can go unnoticed without a detailed examination. Geologists have been able to locate and study many impact craters worldwide to determine their age and diameter and the rock type they formed in.