and travel back to 750 million years ago ... around 240 million years ago. On the Ancient Earth map, you can see the full ...

In a new paper published in Nature today, colleagues and I reveal secrets of Earth’s crust 4.5 billion years ago. In the process ... estimates ranging from 800 million to 4.5 billion years.

Dinosaurs are the extinct relatives of birds that roamed the lands and seas of ancient Earth. They first appeared around 240 million to 230 million years ago in the Triassic Period, and went ...

Moreover, iron-60 is unstable, with a half-life of about 2.6 million years, making it especially challenging to detect a signal from an event that occurred 14 million years ago. RELATED STORIES ...

A team of researchers proposes that 10 million years ago two giant neutron stars crashed into each other and debris from that intense explosion (called kilonova) fell on Earth and the Moon.

Ancient Earth movements, probably connected with the initial unzipping of the Atlantic Ocean over 200 million years ago, caused long fault zones to form and mud with fossils was sucked into the ...

Shatter cones and rock deformations reveal the force of the impact, but its full consequences remain uncertain. Around 600 million years ago, Earth was home to strange, soft-bodied sea creatures, but ...

Fourteen million years ago, Earth was transitioning into a cooler era. The Antarctic ice sheets expanded, and the planet moved away from a previously warm, tropical period known as the Middle ...

The Permian-Triassic extinction, also known as the Great Dying, was the most devastating event in Earth’s history.