New research suggests complex life on Earth began 1.5 billion years earlier than previously thought. We review the top origin ...

Before the rise of dinosaurs, Earth was a vastly different place, teeming with life in forms that were strange and unlike ...

Until recently, many discounted the idea that life could have existed on Earth before 3.8 billion years ago because it was thought that heavy pummelling from asteroids would have made this impossible.

Ancient oceans with phosphorus-rich waters may have supported some of Earth’s earliest microbial life, according to a new ...

The earliest days of Earth held secrets that scientists are still trying to uncover. One of the greatest mysteries is how life began.

A new study may have figured out how life on Earth actually began, and it all has to do with ancient hot springs.

This model reveals how vastly different the atmosphere was on ancient Earth, and how life may have first emerged.

Chemists at UCL and the MRC Laboratory of Molecular Biology have demonstrated how RNA (ribonucleic acid) might have replicated itself on early Earth—a key process in the origin of life.

Earth's oceans may have been green for billions of years until the first photosynthetic organisms flooded our atmosphere with oxygen.

Post a comment. “For aerobic life to begin on the planet, there has to be oxygen and our understanding has been that Earth’s oxygen supply began with photosynthetic organisms,” he said.

Searching for Earth’s Oldest Rocks: Follow a Smithsonian Expedition to the Remote Northwest Territories High in the Canadian wilderness, Smithsonian scientists search for ancient minerals that ...