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 ...

Laughing gas and the mystery of Carl Sagan's Faint Young Sun Paradox: When the sun shone dimmer an eon ago, Earth remained warm in spite of it likely thanks to a mix of greenhouse gases.

Researchers performed Raman spectral analysis on samples from nine geological formations dating from 742 to 1729 million years ago and used the extent of organic matter recycling as a proxy for ...

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 ...