A detailed view of Betelgeuse on a collision course with a nearby wall…

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… » 1/23/13 8:40am 1/23/13 8:40am