631
xkcd #2878: Supernova
(imgs.xkcd.com)
Alt text:
They're a little cagey about exactly where the crossover point lies relative to the likelihood of devastating effects on the planet.
Your answer is a little misleading. I think you meant there are several stars that close to us, but none that can go supernova.
That’s fair. It’s also a little misleading because there are other cosmic events that could happen that are both closer to us and potentially further away, and have in the past. I wouldn’t say we are immune from the hazards of space but my comment could have been construed that way.