Black holes are difficult to find because…they are black. They don’t emit light. And light is the primary messenger astronomers rely on to bring us information from the cosmos
So we’re still where we were two weeks ago: Betelgeuse might explode tomorrow. It might explode a hundred thousand years from now. But if it does explode soon, we will get the best look we’ve ever had at how stellar explosions work.
I was peripherally involved in this research, which detected some of the highest energy photons every seen from a gamma-ray burst.
GRBs are dangerous. They can kill. But it’s rare. There is one candidate nearby that could be dangerous. But we’re still figuring out whether it is.
I checked the calculations myself and this does appear to be accurate…