Stromatolites are layered carbonate structures ... increasing atmospheric oxygen around 2.2 billion years ago during the Archean era. Understanding their formation is significant for both ...

When it comes to safe places for life, supermassive black holes are probably the last place you’d consider safe for nearby ...

Calcified metazoans in thrombolite-stromatolite reefs of the terminal Proterozoic Nama ... Nutman A. 1983. Sm-Nd studies of Archean metassediments and metavolcanics from West Greenland and their ...

New research suggests “microlightning” exchanges among water droplets in Earth’s early atmosphere may have sparked the building blocks of life.

The team examined ancient stromatolites preserved in southern Zimbabwe, which date back more than 2.5 billion years. Stromatolites are layered biochemical structures formed in shallow water by the ...