Ask A Scientist© Astronomy Archive

Question:  What is beyond space?
janette l gubala

Nothing! Either space goes on forever (is infinite) or it comes back around in
some kind of closed loop, but the way we understand space right now, it's
impossible for it to have any edges, and so there's no direction you could point 
and say "50 yards in that direction space ends". Since there aren't any ends, th ere isn't really any
way to understand what "beyond" means. But there could be other things that
"exist" that are somehow outside our own universe - parallel universes!
Asmith