And all of this moves at the (near) speed of light?
So, when we see the Big Boom of Betelgeuse, we got about 10 seconds before our atmosphere is toast?
So it seems... There can be no warning because by the time we know Betelgeuse blew, the blast should be close behind. Of course, if it occurs 100,000 years from now, I can live with that. ⭐️=💣 🛸 ⏰️