Grand Canyon

Scientists discover America’s largest impact crater from 35 million years ago

About 35 million years ago, an asteroid struck the ocean off the East Coast of North America, leaving behind a massive impact crater.

Scientists discover massive underwater crater that is 3x larger than the Grand Canyon Joseph Shavit

Thrill of a lifetime: Try the world’s highest bungee cord jump off this 430-meter suspension bridge Joshua Shavit

Geologists dig into Grand Canyon’s mysterious gap in time Joshua Shavit