Betelgeuse could go supernova within our lifetimes
Well, some of us.
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https://earthsky.org/brightest-stars/betelgeuse-will-explode-someday/
https://earthsky.org/brightest-stars/betelgeuse-will-explode-someday/
61-69, M
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Yet it's so far away that it could already have happened and we won't know for a long time.
DunningKruger · 61-69, M
@NativePortlander1970 Yes. The assessment in the paper was that Betelgeuse went supernova around 500 to 600 years ago, because the light being assessed here on Earth was emitted 400 to 500 years ago.