Multiverse

The multiverse is a concept that refers to the existence of infinite universes that comprise everything that is. Each universe within the multiverse is referred to as a different "Earth," and each vibrates at a different frequency so that they cannot normally interact with or be seen by each other. If one is able to travel fast enough, it is possible to breach the laws of physics and travel between these Earths, although breaches can also be created technological means. Theoretically, for every decision a person makes, there's an alternate universe where they don't act on that decision in the same way.

Known parallel universes

 * Earth-1
 * Earth-2 (destroyed by antimatter)
 * Earth-3
 * Earth-4
 * Earth-5
 * Earth-6
 * Earth-7
 * Earth-8
 * Earth-9
 * Earth-10
 * Earth-11
 * Earth-12
 * Earth-13
 * Earth-14
 * Earth-15 (dead Earth as of 1986)
 * Earth-16
 * Earth-17
 * Earth-18
 * Earth-19
 * Earth-20
 * Earth-21
 * Earth-22
 * Earth-23
 * Earth-24
 * Earth-25
 * Earth-26
 * Earth-27
 * Earth-28
 * Earth-29
 * Earth-30
 * Earth-31
 * Earth-32
 * Earth-33
 * Earth-34
 * Earth-35
 * Earth-37
 * Earth-38
 * Earth-43
 * Earth-47
 * Earth-48
 * Earth-51
 * Earth-52
 * Earth-75
 * Earth-87
 * Earth-90
 * Earth-96
 * Earth-99
 * Earth-100
 * Earth-219
 * Earth-221
 * Earth-260
 * Earth-494
 * Earth-827
 * Earth-898