Advanced tools and expanded fossil datasets have painted a clearer picture of the eukaryotic diversity of the Proterozoic eon, which has been hard to quantify. The findings show that Earth's severe ...

A study suggests that around 1 billion years ago, photosynthetic primary producers were likely too small to support the development of animal ecosystems. Approximately between 1.8 and 0.8 billion ...

We're inching closer and closer to reliably detecting biosignatures on distant planets. Much of the focus is on determining which chemicals indicate life's presence. But life can also create free ...

The way amino acids are synthesized has changed during the history of Earth. The Hadean eon represents the time from which Earth first formed. The subsequent Archean eon (approximately 3,500 million ...

This trilogy consists of 3 x 30 HD episodes that cover the history of our planet and the most ancient life on it during the Hadean, Archean and Proterozoic eons (from 4.6 billion years ago until 500 ...

This trilogy consists of 3 episodes that cover the history of our planet and the most ancient life on it during the Hadean, Archean and Proterozoic eons (from 4.6 billion years ago until 500 million ...

Proterozoic rivers flowed through barren landscapes, and lacked interactions with macroscopic organisms. It is widely held that, in the absence of vegetation, fluvial systems featured barely ...

(CN) — More than a billion years ago, tectonic activity on Earth may have stopped so completely that no new mountains could be formed on the planet for an entire eon — putting evolution of life on ...

Artist's impression of the "pale orange dot" - what early Earth would have looked like. Credit: NASA/Goddard Space Flight Center/Francis Reddy Artist's impression of the "pale orange dot" - what early ...