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 ...

Microbial organisms dominate life on Earth, but tracing their early history and evolution is difficult because they rarely ...

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 ...

During the Archean era, oceans contained high concentrations of iron ... Cyanobacteria not only transformed Earth's atmosphere but also its oceans' appearance, marking a crucial step in Earth's ...

But while lifeless during that time, the planet was already covered by vast oceans dotted with hydrothermal vent systems that ...