Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object slammed into the moon 3.8 billion years ago.

New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons on the far side

Two canyons that splay out from a vast asteroid crater on the moon may have been quickly formed by chains of impacts that followed the initial one

A colossal impact billions of years ago carved out the canyons that rival the most breathtaking features here on Earth in a matter of minutes,