Scientists have found the oldest direct evidence for tectonic motion on Earth by more than half a billion years ...
Continental clues: Modern continental rocks carry chemical signatures from the very start of our planet’s history, challenging current theories about plate tectonics. Researchers have made a new ...
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Study suggests Earth’s first mass extinction may have been overlooked
A wave of new research is forcing paleontologists to reconsider a basic question about life on Earth: when did the first mass ...
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