Those who've poked along the old, cross-country Route 66 through the American Southwest in Arizona might have accidentally driven by, or perhaps spotted, what looks like a giant, bowl-shaped hole in ...

Mysterious driftwood high in Grand Canyon caves hints at the legacy of Arizona’s huge impact crater.

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 ...

Early in the morning of October 6, 2008, astronomers at the University of Arizona detected an asteroid on a collision course with Earth. When other sightings cropped up across the world, the ...

A new study highlights the striking coincidence in the geologic ages of the famous Meteor Crater in Arizona and a landslide dam that blocked the Colorado River, forming a paleolake in the Grand Canyon ...

Geologists from the University of Minnesota have found a crater 11 times larger than the iconic Meteor Crater in Arizona. The crater is hidden about 350 feet below the city of Inver Grove Heights, a ...