Scientists have identified the geological site that they say best reflects a proposed new epoch called the Anthropocene — a major step toward changing the official timeline of Earth’s history.

MIT geologists have now reconstructed a timeline of the Earth's temperature during the early Paleozoic era, between 510 and 440 million years ago -- a pivotal period when animals became abundant ...

The findings, Mojzsis added, open up a new window for when life may have evolved on Earth. Based on the team's results, our planet may have been calm enough to support living organisms as early as ...

The early Cambrian Period, around 540 million years ago, saw Earth explode with an astonishing diversity of animal life, but its precise starting point has been contested for decades.

The geologic time scale provides the official framework for our understanding of Earth’s 4.5 billion-year history. Geologists break down our planet’s history into eons, eras, periods, epochs ...

Welcome to the early solar system. Just after the planets formed more than 4.5 billion years ago, our cosmic neighborhood was a chaotic place. Waves of comets, asteroids and even […] ...