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There are models of two related universes that e.g. attempt to explain the baryon asymmetry – why there was more matter than antimatter at the beginning – with a mirror anti-universe. [78] [79] [80] One two-universe cosmological model could explain the Hubble constant (H 0) tension via interactions between the two worlds. The "mirror world ...
Parallel universes in fiction, a hypothetical self-contained plane of existence, co-existing with one's own Alternate history , a genre of fiction in which historical events differ from reality Alternative universe (fan fiction) , fiction by fan authors that departs from the fictional universe of the source work
Well, in the same sense there may be interlocking universes right here! We have this idea of space, we always think of another universe being someplace else. It may not. Maybe it's right here." In his 'landmark' 1969 book Passport to Magonia: On UFOS, Folklore and Parallel Worlds, Vallee argues for a "parallel universe co-existing with our own ...
The Hidden Reality: Parallel Universes and the Deep Laws of the Cosmos is a book by Brian Greene published in 2011 which explores the concept of the multiverse and the possibility of parallel universes. It has been nominated for the Royal Society Winton Prize for Science Books for 2012.
In the mapping model, hyperspace is a parallel universe much smaller than ours (but not necessarily the same shape), which can be entered at a point corresponding to one location in ordinary space and exited at a different point corresponding to another location after travelling a much shorter distance than would be necessary in ordinary space.
The possibility of communication between parallel universes has been dubbed interuniversal travel. [62] Wormhole can also be depicted in a Penrose diagram of a Schwarzschild black hole. In the Penrose diagram, an object traveling faster than light will cross the black hole and will emerge from another end into a different space, time or universe.
There are more modern models of Cyclic universes as well. The Ekpyrotic model, formed by Paul Steinhardt, states that the Big Bang could have been caused by two parallel orbifold planes, referred to as branes colliding in a higher-dimensional space. [18] The four-dimension universe lies on one of the branes.
Time travel can result in multiple universes if a time traveller can change the past. In one interpretation, alternative histories as a result of time travel are not parallel universes: while multiple parallel universes can co-exist simultaneously, only one history or alternative history can exist at any one moment, as alternative history usually involves, in essence, overriding the original ...