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Live Science on MSN7h
150,000-year history of Earth's magnetic field reveals clues about the climate when early humans were spreading out of Africa
The record sheds light on the climate early humans experienced when they were spreading out of Africa. A tree-ringed African ...
Smithsonian Magazine on MSN10h
The Secrets of How Life Began May Be Hidden Inside the World’s Oldest Rocks
Smithsonian researchers trekked to a remote site in northern Canada to collect four-billion-year-old rock samples that could ...