Today, the upheavals of plate tectonics continually reshape Earth. When this began is much disputed - and we can’t fully understand how life began to thrive on our planet until we figure it out ...

Fossils and genetics are starting to point to life emerging surprisingly soon after Earth formed, when the planet was ...

Scientists accidentally discovered that the Earth's inner core might not be how we thought it was - and it could affect the ...

The giant-impact hypothesis posits that billions of years ago a Mars-sized body named Theia collided with the early Earth.

Our planet’s history is one of extreme climate cycles that repeat across time, with insights into the Earth’s previous ...