These hidden gems in Arizona are picture perfect in every way. Come explore historic sites, mesmerizing lakes, and even a ...

The Earth's Grand Canyon took millions of years to carve, but the moon's grand canyons took about ten minutes.

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

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 ...

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

The Grand Canyon in Arizona got carved by water over millions ... "These are extraordinary canyons, but they're hidden, if you will, and kind of mysterious because they're on the far side in ...