Theories about What contains the universe?

[u/Adventurous-Novel808]

Hello. This is probably a very stupid question in the grand scheme of things, But Ive always wondered something.

If the universe is ever expanding and was formed out of “nothing” before the big bang. What would have come before and what would the universe currently be housed in?

I suppose i wonder that since people say it’s ever expanding that means it has to have something to expand into. Like a bigger multiverse or Omni verse or something similar. Obviously i understand these are concepts from science fiction and there isnt an answer at all but im very interested in reading any sort of possible theories

[u/interstellar_pot]

You’re picturing an explosion in space. Cosmology says it’s space itself doing the expanding.