Advertisement Continue reading the main storyEarth was a billion years old by then, and scientists have long wondered if even older fossils might be found. The scientists argued that the organisms were once mats of bacteria that grew in shallow coastal waters. For one thing, she has argued, the filaments in the Nuvvuagittuq rocks are too big. Long after the Nuvvuagittuq rocks formed on the sea floor, they were heated to tremendous temperatures. Advertisement Continue reading the main storyDr. Wacey was not surprised that the new work had drawn criticism.

Source: New York Times March 01, 2017 18:00 UTC