About 35 million years ago, an asteroid struck the ocean off the East Coast of North America, leaving behind a massive impact crater now buried beneath the Chesapeake Bay. The collision unleashed ...

Why it's incredible: Evidence suggests it could be the greatest known impact crater on Earth. The Wilkes Land crater is a hole in the bedrock beneath East Antarctica's ice sheet measuring 315 miles ...

In the middle of the Pacific, a concrete dome the size of a football field holds the toxic legacy of Cold War nuclear testing ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London. Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and ...

The chemical makeup of mineral inclusions preserved in impact glass hints at the site of a missing impact crater. Tektites are natural glass formed when debris falls back to Earth after a meteorite ...

This unusual crater on Mars resembles a butterfly, but its shape tells a story of a shallow impact, melted ice, and ancient ...

Nestled within the Cascade Range is an Oregon treasure — the great, blue 1,949-foot-deep Crater Lake — Oregon’s only national park and the deepest lake in the U.S. Although it’s a 20-square-mile lake, ...

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 ...

From orbit, Earth often looks more like art than geography. Satellites such as the European Union's Copernicus Sentinel ...