Two such lunar canyons, Vallis Schrödinger and Vallis Planck, stretch over 270 km (168 miles) each, with depths of 2.7 km ...

Animals in the Grand Canyon are behaving in ways scientists have never seen before. Could climate change, human activity, or something even stranger be causing this shift in behavior? Find out what’s ...

Two gargantuan canyons on the moon were carved by a hailstorm of rocks — and that’s good news for future lunar astronauts.

Scientists found that an asteroid impact carved two massive canyons on the moon in minutes. High-speed debris helped shape ...

The southern tip of Island in the Sky, called Grand View Point ... Gallery is located in Horseshoe Canyon, a small isolated unit of the Canyonlands National Park. The enigmatic, ghostlike figures ...

Shutterstock A Grand Canyon in Upstate New York In Upstate New York, you’ll find a natural wonder that matches the beauty of ...