Question: whats outside of the universe is it just blank space or is there something there?

Duncan McNicholl answered on 8 Nov 2017:

When we talk about the universe, what we’re really saying is “the everything”, so if something was outside it, then wherever that something was would also be part of the universe, so the something wouldn’t be outside it any more. Unless you’re in a sci-fi show, in which case there’s loads of stuff outside the universe, like the Upside-Down or the Howling, or a bubble universe, or the Void or something. In physics, we’d say all of those things are still part of the universe.