The Origin and Evolution of Earth: From the Big Bang to the Future of Human Existence
Earliest Microbial and Molecular Fossils?
S1 E31:
See how three rare and distinctive ancient rock types-black carbon-rich chert, black carbon-rich shale, and mound-like stromatolites-provide tantalizing evidence for life on Earth more than 3 billion years ago. Focus on the researchers who have blazed the trail in this challenging field.