Visitors to the Meteor Crater attraction have long been able to see the hole and look down into it. But beginning May 16, ...

Just outside Odessa, Texas sits what’s often called the second largest meteor crater in the United States. It formed around ...

This piece is part of a special project on deep time examining what the Western U.S. was like thousands, millions and even billions of years ago, and how that history is still visible and ...

Geology is full of detective stories about the Earth's history, and a new paper in Geology by University of New Mexico Distinguished Professors Emeritus Karl Karlstrom and Laurie Crossey, along with ...