Could it emit, at the speed of light with the visual event, that gamma ray life extinguishing blast that would end all life on earth?
-Well GET IN LINE.
Nuclear war, Carrington event, Yellowstone Caldera, EMP attack, GloBULL Warming, terrorists, zombie apocalypse,,,,,
There were explosions that were so energetic that it seemed to violate E=MC2. Turns out they were assuming the blast went out in all directions when in fact it went in a beam that the Earth just happened to intersect.
The beams went out from where the object was spinning. I mention this because Earth is actually facing one of the poles of Betelgeuse.
If you can determine that a potential supernova’s spin-axis is aligned with your location, then you might have a problem! There are a few that come too close for comfort. WR 104 and Eta Carinae were once GRB contenders as a threat to Earth.