Learn about the continent-sized rocks hidden deep within Earth's mantle that have influenced the magnetic field for millions ...

A massive meteorite strike 3.5 billion years ago left behind the world’s oldest known impact crater, challenging previous ...

Earth’s Ediacaran Period, roughly 630 to 540 million years ago, has always been something of a magnetic minefield for scientists. During earlier and later time periods, tectonic plates kept a steady ...

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 ...

It was long thought, up until recently, that asteroids and comets delivered Earth's oceans during the very early Solar System ...