City-sized asteroids smacked ancient Earth 10 times more often than thought

City-sized asteroids smacked ancient Earth 10 times more often than thought
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Asteroids as big as the one that wiped out the dinosaurs, or even bigger, used to strike ancient Earth ten times more often than previously believed, according to a new study.



July 15, 2021 at 04:25PM
via Space.com read more...