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.

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

Water from both volcanic rocks and deep mantle melted Earth's crust 1.6 billion years ago. This long-lasting melting formed ...

The warming hole might be a sign that Atlantic Ocean currents are slowing down. This network of currents regulates Earth's ...

Plate tectonics is geology’s Theory of Everything. The realisation in the 1960s that Earth’s crust is made of fragments ...

On a wave-battered rock in the northern Pacific Ocean, a fish called the sculpin grips the surface firmly to maintain ...

Two continents collided millions of years ago, forming a bridge that changed Earth's climate system and triggered one of history's greatest animal migrations.