ELI5- If the universe is expanding (& the speed of expansion is accelerating) then what is the source of this energy that is driving this expansion & acceleration?
In: Physics
We don’t know, there is the possibility that there are other big bangs outside our visible universe and the gravity from those “universes” are pulling on ours and preventing it collapsing in on itself. https://youtu.be/t80qywmnADM
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