FYI, if you want a few hours notice before (the very unlikely event of) a Betelgeuse supernova, there’s a mailing list you can join: https://snews.bnl.gov/alert

FYI, if you want a few hours notice before (the very unlikely event of) a Betelgeuse supernova, there’s a mailing list you can join: https://snews.bnl.gov/alert.html https://snews.bnl.gov/alert.html