There is no evidence that Parallel Universe exists, but doesn't mean that it doesn't exist. Accord of the law of Physics, yes Parallel Universe can exist.
3, or perhaps more. It depends on the theory to which you ascribe. For example, recent research done at the Princeton Institute for Advanced Studies (IAS) led to the creation of ekpyrotic theory....
First you have to prove a parallel universe exists. It is theorised that they exist, but it is not proven. If they do exist, it is doubtful we could ever go there. We are designed for this one, for...
We don't know (and may never know) for certain that there are parallel universes, let alone how to "get to" them. Some theories postulate that you can get to a parallel universe by entering a black...
You can get into a parallel universe through wormholes which are located in the middle of blackholes. However it would take a space shuttle as BIG AS JUPITER to get near the blackhole without...