Earth’s Oldest Rocks Are Revealing Life’s Origins, Fueling Controversy

Earth’s first life evolved in hell.

The earliest lifeforms emerged at least 3.95 billion years ago, at a time when a near constant barrage of comets and asteroids were bombarding our still solidifying planet. That’s the implication of new research published in the journal Nature on Wednesday.

A group of Japanese scientists journeyed into a remote stretch of northern Labrador, Canada, where they chiseled samples from some of Earth’s oldest rocks. They braved bugs, bad weather and polar

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