Episode Details

There are a few extreme natural events that could potentially end life on Earth. A massive asteroid impact, like the one that wiped out the dinosaurs, could cause catastrophic damage. Supervolcano eruptions, which are much bigger than regular volcanic eruptions, could spew enough ash and gas into the atmosphere to block out the sun and trigger a global winter. A gamma-ray burst from a nearby star could blast Earth with deadly radiation. Lastly, a significant shift in the Earth's climate, beyond anything we've seen, could make the planet uninhabitable for most life forms.

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