Around 540 million years ago, Earth's biosphere underwent a pivotal transformation, shifting from a microbe-dominated world ...

The ground beneath us isn't as stable as we'd like to think. While we go about our daily lives, some of Earth's most ...

New research may have solved an American mystery which has baffled geologists for a century and a half: How did a river carve ...

This makes the story of how the Green and Colorado Rivers met so perplexing to geologists like Adam Smith at Scotland’s ...

As crews repair a sinkhole on eastbound Interstate 10, here's a look at past cases in greater Houston.

New research may have solved an American mystery which has baffled geologists for a century and a half: how did a river carve ...

The finding "may be the hidden answer to more tectonic mysteries than we’ve previously realized," said geologist Adam Smith.

San Ramon, Calif., has been rattled by dozens of small earthquakes in recent months. Even in a region used to regular shaking, it’s been a lot.

The fossils offer a rare glimpse into a cataclysmic event that brought a sudden end to the greatest explosion of life in our planet's history.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." The last time Cortina ...

Each of these books can, in its own way, teach readers how to think about Earth's history, and how to apply lessons from the past to our future.

The surface of our world has been in a constant state of flux for millions of years. Continents have wandered, oceans have ...