Basically the title – I have a degree in Aerospace Engineering, but I still can’t answer this question posed by my girlfriend. An infinitely expanding universe implies that there’s a “container” the universe is expanding into, kind of like how you can pour a pancake into a pan & it’ll expand to the limits of the pan. But then that also implies that said container existed before the universe / big bang, which is…wild. Anyway, please ELI5!
In: Physics
There are some legitimate theories that our universe is one of many in a multiverse. So it could be expanding into the multiversal space. But we don’t have any way of testing that hypothesis.
Latest Answers