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.

How core-mantle differentiation influenced the distribution of volatile elements on Earth. Imagine Earth's history as a ...

Where Is everybody? The answer to Fermi's famous paradox may be lurking closer than we expected... and it could involve ...

There are indicators of impending catastrophe as well as reasons for hope 55 years after we first celebrated Earth Day, ...

While the Statue of Liberty may not be submerged, low-lying places like Ellis Island could be underwater. By 2100, sea-level ...

A giant sequoia located in Sequoia National Park in California, the General Sherman is 52,500 feet in volume and is more than ...

The 100th meridian marks a dividing line between moist climates to the east and arid climates to the west. Climatologists now ...

Federal cuts to the U.S. Geological Survey have prompted fears of losing vital information on earthquake activity and ...

Scientists discovered complex life may have started 1.5 billion years earlier than previously thought thanks to phosphorus.

The Largest Flood in Earth’s History Exploded in the Atlantic 5 Million Years Ago, Refilled the Entire Mediterranean The ...

Scientists have found carbon residue in Martian rocks, indicating that an ancient carbon cycle existed. It means Mars was ...

It's probably the largest flood in our planet's history.