New research shows ancient tropical oceans once held more oxygen than cooler regions, reshaping where early life could ...

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.

Rockhounders can find all kinds of gemstones across the United States, but there are certain places where geodes can be found ...

More than 3.5 billion years ago, the Earth was not the hospitable world we know today. The atmosphere lacked oxygen, the seas ...

Construction crews have helped excavate the first fossils in Dinosaur National Monument in more than 100 years. The bones, ...

Earth's first large land organisms—tree trunk-like beings that stood up to 26 feet tall—weren't early fungi but, rather, ...

A new analysis of mineral grains has refuted the "glacial transport theory" that suggests Stonehenge's bluestones and Altar ...