Scientists have found a nearby planet that appears to be teeming with life, and now we may know what it looks like. The ...

The record-breaking mission offers an unprecedented opportunity to study the geology of our planet’s largest layer.

The land bridge created by mantle-driven uplift gave early primates and other animals opportunities to branch out.

New research shows that North America is slowly sinking into the earth, and there's nothing we can do to stop it.