Rare Life Dating Back 3.5 Billion Years Found

Gloppy mats of microscopic life left the same signature on coastal and river bank sediments 3.48 billion years ago that they do today. Continue reading →

November 13, 2013
11:35 AM EST
A rock surface displaying "polygonal oscillation cracks" in the 3.48 billion years old Dresser Formation, Pilbara region, Western Australia. (Nora Noffke)