Nearly three-fourths of Earth is covered by oceans, making the planet look like a pale blue dot from space. But Japanese ...

A new study suggests Earth's oceans may have been green during the Archean eon, around 3.8 to 1.8 billion years ago. The ...

The recent paper's case for green oceans in the Archaean eon starts with an observation: waters around the Japanese volcanic ...

The reason Earth’s oceans may have looked different in the ancient past is to do with their chemistry and the evolution of ...

Analysis - Nearly three fourths of Earth is covered by oceans, making the planet look like a pale blue dot from space. But ...

Banded iron formations were deposited in the Archean and Paleoproterozoic eons ... The Archaean eon was a time when Earth’s atmosphere and ocean were devoid of gaseous oxygen, but also when ...

Banded iron formations were deposited in the Archean and Paleoproterozoic eons ... The Archaean eon was a time when Earth's atmosphere and ocean were devoid of gaseous oxygen, but also when ...

The Mesozoic Era extinctions formed the world as we know it today. Read about what caused them and which animals survived.