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Faust76 · 46-50, M
Define infinite, and err, space. The Big Bang model basically holds that universe is expanding into void of nothingness at light-speed or faster (it gets confusing), since speed of light is the highest speed information can travel, it would never be possible to reach or "see" the edge of universe.
However, depending on several universal constants, the expansion could end, or even reverse and start contracting, or several other odd things could happen. It's possible time would start running in reverse if that happened, in which case I guess we'd never find out what's on the other side either!
Multiverse theories suggest that somewhere within the interstial void (And I use "somewhere" lightly, as neither time nor space exists outside of our universal "bubble") there are other universes, except with entirely different laws of physics, so that neither us nor anything in them could exist in each other. Consequently they're pretty inconsequential to us, but I suppose in strictest sense, the answer is "Bubbles!".
However, depending on several universal constants, the expansion could end, or even reverse and start contracting, or several other odd things could happen. It's possible time would start running in reverse if that happened, in which case I guess we'd never find out what's on the other side either!
Multiverse theories suggest that somewhere within the interstial void (And I use "somewhere" lightly, as neither time nor space exists outside of our universal "bubble") there are other universes, except with entirely different laws of physics, so that neither us nor anything in them could exist in each other. Consequently they're pretty inconsequential to us, but I suppose in strictest sense, the answer is "Bubbles!".