ogou parent
What we're reading about has already happened and repeated again at least 30 more times, in the past 3000 years it took for the light to reach us. If there is some kind of astronomical event that will eventually destroy us, it's likely that it has already happened and we're just waiting for the effects to arrive.
I'm not really sure there's a singular "now" that encompasses both here and there.
I don't see that this is relevant. Relativistically we are all in similar reference frames. And objectively, it is true that explosions within some sphere of earth will happen with some probability and take a fair bit of time to get here.