Earth formed about 4.6 billion years ago, during the geological eon known as the Hadean. The name "Hadean" comes from the ...

Studies of these zircon minerals has given us clues about the Hadean environment, and the formation and evolution of Earth’s ...

New research has dramatically reshaped our understanding of Earth’s early geological history, overturning traditional beliefs ...

The Archean eon was a time when Earth's atmosphere and ocean were devoid of gaseous oxygen, but also when the first organisms to generate energy from sunlight evolved.

The Archaean eon was a time when Earth's atmosphere and ocean were devoid of gaseous oxygen, but also when the first organisms to generate energy from sunlight evolved.

Scientists have long wondered how Earth’s continents first formed. Now, a team of geologists from the University of Hong Kong ...

Back during the Archean Eon, between 2.5 billion and 4 billion years ago, Earth’s mantle was much hotter. Geologists have estimated that Earth’s interior was more than 360 degrees Fahrenheit ...

Roughly between 3.8 and 1.8 billion years ago, during the Archean eon when life was confined to single cells in the oceans, rainfall eroded iron from continental rocks.

The Archean Eon (4–2.5 million years ago) is the second of Earth’s four major geologic eons, a time when the planet was mostly covered by oceans extending far deeper than those found today.

The Archaean eon was a time when Earth's atmosphere and ocean were devoid of gaseous oxygen, but also when the first organisms to generate energy from sunlight evolved.