Betelgeuse is one of my favorite objects to look at, partly because of its pure red color, and mostly because my imagination fills in the rest. That bright red star — this shoulder of Orion — is a supergiant that's dozens of times more massive than our Sun, and ready to detonate as a supernova any day now (any day…
The red supergiant star Betelgeuse is getting ready to go supernova, and when it does Earth will have a front-row seat. The explosion will be so bright that Earth will briefly seem to have two suns in the sky.
Betelgeuse is one of the largest stars known to researchers, at over 1000 times larger than our own sun. But it has also lost huge amounts of mass over its lifetime. These new images suggest how this might be happening.