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The original was posted on /r/explainlikeimfive by /u/zubair95 on 2023-07-18 11:25:26.

So im having trouble wrapping my mind around this concept - correct me if im wrong. The stars we see in the night sky are approximately 4000 light years away… which is like we are seeing through a portal 4000 years ago “live”. So at this instant when I look up, the light that comes from the star to my eye had left 4000 years ago right? So when the star dies, we will see it disappear and then with the birth of a new star we will see new ones appear? Why aren’t we seeing death of stars in the night sky? In the argument that says stars live 10000 years and humanity hasn’t lived that long…what about the stars that had been living wayy before humans that are about to end their lives now? Aren’t there ANY stars since the beginning of the universe that are about to die off today or tomorrow?