Life thrived on Earth far earlier than previously believed, flourishing under the harsh reign of the Hadean eon. LUCA—the last universal common ancestor—was even designed to fend off ancient viruses.
New ideas about the Hadean Earth (the era that began with the Earth's formation 4.6 billion years ago and ended 4 billion years ago) suggest the concomitance of a reduced atmosphere, electrical storms ...
Fresh evidence suggests early Earth wasn’t locked under a rigid stagnant lid but was already experiencing intense subduction. Ancient melt inclusions and advanced simulations point to continents ...
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