Two such lunar canyons, Vallis Schrödinger and Vallis Planck, stretch over 270 km (168 miles) each, with depths of 2.7 km ...
In an extraordinary breakthrough, scientists have discovered a massive underwater crater buried beneath the waters of the Chesapeake Bay that is three times the size of the Grand Canyon. This ancient ...
In the Arizona desert, researchers are learning so much more about the peoples who have inhabited this land since antiquity ...
About 35 million years ago, an asteroid struck the ocean off the East Coast of North America, leaving behind a massive impact ...
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 far side of the Moon has its own versions of the Grand Canyon—two of them, in fact! A new study explains how these deep ...