eli5: What evidence indicate towards the phenomenon of the Big Bang? How did they come to the conclusion of it happening?
In: Physics
I’m sure some more astrophysics-minded people can elaborate but for one, nearly all the matter in the universe is moving apart, with all sorts of galaxies and stars all moving away from each other. If you think about it, it kinda makes sense that they all came from the same place and that some sort of large bang sent them all flying apart.
Of course, the galaxies and stars formed after the big bang but their motion suggests that the matter all originated in one location and was dispersed from there
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