This almighty gorge is a true wonder of the natural world and has been dubbed the “ Greek Grand Canyon”. This is due to its ...

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 ...

Ever wonder what the deepest lake in Arizona is? Here's what you want to know about the top spot for swimming, boating and more in Arizona.