Our planet’s last glacial period (colloquially known as the Ice Age) began around 115,000 years ago and lasted for over 103,000 years of the Pleistocene Epoch. During this time, ...

Tajika and his team used a numerical model to simulate key aspects of biological, geological and chemical changes during the late Archean eon (3.0–2.5 billion years ago) of Earth's geologic history.

Earth formed over 4.5 billion years ago from a swirling cloud of gas and dust squished together by gravity. That same cloud gave rise to our entire solar system, including our star, the sun.