New research from Japan's iron-rich hot springs shows how early microbes may have harnessed iron and oxygen during the Great Oxygenation Event. Some 2.3 billion years ago, the Earth would have been ...

Some 2.3 billion years ago, the Earth would have been unrecognizable to us. At that time, ancient microorganisms were the dominant life form; there were no animals, no plant life, and certainly no ...

Earth was not always the blue-green world we know today: early Earth's oxygen levels were about a million times lower than we now experience. There were no forests and no animals. For ancient ...

What types of animals first existed on Earth long ago? This is what a recent study published in the Proceedings of the National Academy of Sciences hopes to address as a team of scientists ...

Long before humans ruled the planet, we were on the menu. Saber-toothed cats, giant eagles, and monstrous crocodiles stalked our ancestors through forests and plains. This is the story of when ...

The Great Oxygenation Event marked a massive transition in life on Earth, when oxygen became plentiful and organisms suddenly had to adapt. Current conditions in Japanese hot springs give clues as to ...

Earth scientists often face huge challenges when researching Earth's history: many significant events occurred such a long time ago that there is little direct evidence available. Consequently, ...

Between 800,000 and 430,000 years ago, Earth went through a series of fairly gentle warm-ups that scientists are now calling “lukewarm interglacials.” The air over Antarctica was chilly during these ...

This video surveys the most infamous ancient earthquakes, and explores how the Greeks and Romans explained and responded to these disasters. NFL Top-10 Rankings: A New No. 1; Steelers, Colts Climb; ...

Did you know that you can play Roblox with a VR headset? It's not a widely known feature, as many households don't have a virtual reality device readily available. The first VR headsets required a ...