Earth's crust today has a surprisingly similar composition to the planet's first outer shell, or "protocrust," new research ...

Green oceans on early Earth, shaped by iron, pushed microbes to evolve light-absorbing tools that worked in green light.

But life emerged prior to that; we have fossils of microbes from 3.48 billion years ago. And scientists think that conditions on Earth may have been stable enough to support life from around 4.3 ...

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, we also provide a new way to approach one of the biggest ...

Researchers have helped overturn the popular theory that water on Earth originated from asteroids bombarding its surface; Scientists have analyzed a meteorite analogous to the early Earth to ...

Researchers discover Earth's first crust, formed 4.5 billion years ago, had chemical features similar to modern continental crust. (photo credit: Tanya Kalian. Via Shutterstock) A study published ...

Precambrian time covers the vast bulk of the Earth's history, starting with the planet's creation about 4.5 billion years ago and ending ... had sac-like bodies and a simple digestive system ...

Few topics have been as contentious among both scientists and laypeople as the age of the Earth. Many scientists ... originating some 3.4 billion years ago. Stromatolites are sedimentary ...

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, we also provide a new way to approach one of the biggest enduring ...