hey every one! according to what i've read white hole are assumed (in some theories) to be the 'exits' on the other side of a black hole. Where the matter sucked in by a black hole is expelled on the other side creating a new universes in a sort of 'bubble' if you will. Going along with this line of thinking. Could it be possible that our universe is one such 'bubble' and the reason that it is constantly expanding is be cause of a constant stream of space/time/matter being introduced by one or many white hole located somewhere in the cosmos that we have yet to find a way to discover? I would love to hear your thoughts on this. Thank you all.