WINSLOW, AZ (AZFamily) — An asteroid hit the Earth in what is now known as northern Arizona about 50,000 years ago. It left a giant crater that draws people from all over the world. Nestled between ...

WASHINGTON and HOUSTON, July 15, 2025 /PRNewswire/ -- A new paper in Geology led by University of New Mexico Distinguished Professors Emeritus Karl Karlstrom and Laurie Crossey, University of Arizona ...

I perched on the edge of disaster. Oddly enough, I wanted to laugh, perhaps in a strange effort to reduce the planet’s best ...

View from the Grand Canyon's South Rim onto Nankoweap Delta. Remnants of a past natural dam created by a landslide are visible on the far side of the Colorado River, just to the left of the dry bed of ...

The ancient meteor impact that formed Arizona's Barringer Crater sent shock waves through the Grand Canyon — likely triggering a landslide that dammed the Colorado River, a new study suggests.

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 ...