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

Scientists agreed the rocky outcrops in a remote part of Quebec, Canada, were ancient. But were they really Earth’s oldest?

Today, phosphorus erodes out of continental rocks into the oceans, but during the Archean, Earth was mostly a water world, ...

Geologists from the University of Hong Kong (HKU) have made a breakthrough in understanding how Earth's early continents ...

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

The Archean Earth. The Archean eon represents one third of our planet’s history, from 2.5 billion years ago to four billion years ago. This alien Earth was a water-world, ...

A new study has revealed details about the composition of Earth's atmosphere during the Archean eon, which lasted from around 4 billion years ago to 2.4 billion years ago.

The Archean Earth was a water world with few islands sticking out. It would have been a curious sight, as the oceans were probably green in color from iron-rich deep waters.” ...

The only period of Earth’s geologic history known to include such high temperatures was between 2.5 and 4 billion years ago during the Archean Eon. Consequently, the researchers inferred that these ...

Pink Skies of the Archean. There's no question that Earth was a very different place during the Archean eon, between 4 and 2.5 billion years ago.. The continents had not yet grown to their full ...

The Archean Earth. The Archean eon represents one third of our planet’s history, from 2.5 billion years ago to four billion years ago. This alien Earth was a water-world, ...

The Archean Earth. The Archean eon represents one-third of our planet’s history, from 2.5 billion years ago to four billion years ago. This alien Earth was a water-world covered in green oceans, ...