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Solar System

Lethal billiards

A huge collision in the asteroid belt 160 million years ago sent fragments bagatelling around the inner Solar System. One piece might have caused the mass extinction that wiped out the dinosaurs 65 million years ago.

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Figure 1: Breaking up is all too easy.



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Claeys, P., Goderis, S. Lethal billiards. Nature 449, 30–31 (2007).

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