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Here's how the world could end—and what we can do about it

Rare cataclysms are hard to study and plan for, but they may be too dangerous to ignore

Gosses Bluff meteor crater in Australia formed when a 1-kilometer-wide space rock struck Earth 142 million years ago. © Stephen Alvarez/National Geographic Creative
https://wwwqa.sciencemag.org/sites/default/files/images/699x419_0715_SI_Unthinkable_sun_hires.jpg
doi: 10.1126/science.aag0664

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Julia Rosen

Julia Rosen

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