this post was submitted on 08 Jan 2024
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xkcd

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xkcd #2878: Supernova (imgs.xkcd.com)
submitted 2 years ago* (last edited 2 years ago) by yimby@lemmy.ca to c/xkcd@lemmy.world
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They're a little cagey about exactly where the crossover point lies relative to the likelihood of devastating effects on the planet.

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[–] match@pawb.social 56 points 2 years ago (1 children)

Wikipedia (Near-Earth Supernova) says that a 25 ly away supernova would wipe out half the ozone layer so that's probably the lower bound for what we want

[–] kurwa@lemmy.world 21 points 2 years ago (2 children)

Geez, how many stars do we have that close to us?

[–] elvith@feddit.de 3 points 2 years ago* (last edited 2 years ago)