It didn’t take long for the moon to get its grand canyons. Vallis Schrödinger and Vallis Planck are two long channels near ...

"An epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a journey ...

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 ...

We have the full Snow Moon to look forward to in the week ahead. And thanks to fortuitous timing it will look equally "full" to the unaided eye two nights in a row, on Feb. 11 and 12. That's because ...

An undated artistic rendering shows an asteroid or comet striking near the Moon's south pole about 3.8 billion years ago, an ...