How can the universe be speeding up in its expansion? Since gravity is the only force that controls wouldn’t the universe ultimately always contract again over time because gravity would eventually win out over the initial acceleration caused by the big bang?

Question

How can the universe be speeding up in its expansion? Since gravity is the only force that controls wouldn’t the universe ultimately always contract again over time because gravity would eventually win out over the initial acceleration caused by the big bang?

In: Physics

Answer 1

In theory there could possibly be other “universes” outside of our local universe pulling on the edge and accelerating them, but that is speculation since we don’t know for certain why this is happening. https://youtu.be/t80qywmnADM