A study of fossils from the Permian-Triassic extinction event 252 million years ago shows that forests in many parts of the ...

In this video, we take you on a journey to the Pleistocene Epoch, a time when Earth looked vastly different from today.

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

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

Earth's earliest life forms developed ways to survive the harmful effects of arsenic to cope with dramatic changes in their ...

New research suggests ancient Earth was a water world, with little to no land in sight. And that could have major implications for the origin and evolution of life. While modern Earth’s surface ...

Rocks older than 4.03 billion years could shed light on Earth's earliest geological history, but they're incredibly rare.

For the ancient Earth, 3 billion years ago, the researchers found that, because the ancient mantle was so much hotter than today, and the slabs much denser, a density flip would not have occurred.

Ancient glaciers reshaped Earth’s surface and shifted ocean chemistry, fueling the rise of complex life, a new study found. Calved icebergs from the Twin Glaciers are seen in 2013 off Greenland ...

Eight reactions could connect ancient Earth to modern day. Here's how. A missing piece of Earth's evolutionary timeline may have been found. Using computational modeling, a team of scientists ...