The history of Earth is written on the great tablets of tectonic plates. The motions of plates shaped land masses, formed ...

Rocks from Australia have given scientists the oldest direct proof that Earth's surface was moving in separate pieces 3.5 ...

Ah, Earth. We may not think about our planet on a day-to-day basis, but the world we live in is a pretty interesting place. The third rock from the Sun—and to this day, the only one with known ...

NASA has confirmed over 5,780 worlds beyond our solar system, called exoplanets. But it's rare to detect a juvenile, still-maturing planet, because they inhabit chaotic systems that are flush with ...

The world's oldest rocks are spread across the globe and paint a picture of Earth's turbulent early history. Here are some of the most notable and important formations scientists have discovered. When ...

Earth has existed for more than 4 billion years without present-day humans. In the past, dinosaurs and cavemen never used its plentiful natural resources. Today, with 8 billion humans on this planet, ...