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