Imagine a world where the Americas were not connected—a time when wild Pacific waters crashed against scattered islands, and ...

On Thursday, President Trump signed an executive order that aims to permit, for the first time, industrial mining of the ...

A rock containing many smaller round stones could indicate that there was once a large amount of liquid water on the Red ...

Kenneth Sims and other research scientists recently discovered that mafic volcanism of Henrys Fork Caldera -- located in ...

Rocks from Greenland found on Iceland's west coast could link the late Roman Empire's fall to a spell of sudden climate ...

A weathered sign in the Minnesota River Valley proudly proclaims: “World’s Oldest Rock.” Erected in 1975, it marks a 3.8-billion-year-old gneiss — or so scientists thought.

The Reykjanes Peninsula at Iceland's southwestern edge is one of the country's most populated regions, and it is also one of ...

A mysterious island once hidden beneath the ocean is now rising to the surface, revealing secrets locked away for millions of ...