This is a well-written and exciting article about Betelgeuse.

This is a well-written and exciting article about Betelgeuse. You have to read to the end to get the answer to “when” but of course the answer is an unsatisfying “we don’t really know.” My favorite part is the idea that we could perhaps know if we had a neutrino telescope that could probe what’s going on in Betelgeuse’s core, but the current state of neutrino research is that we’re still trying to figure out our own Sun let alone a distant star.

https://medium.com/starts-with-a-bang/what-will-happen-when-betelgeuse-explodes-df5b04164b2