Parallel universe
A parallel universe is a universe that is different from the observable universe. This may be because of time travel or other things.
Parallel universe may also be:
Science, physics and philosophy
- Multiverse, the hypothetical set of multiple possible universes
- The many-worlds interpretation of quantum physics
Fiction
- Parallel universes in fiction, alternative universes, worlds, realities and dimensions in fiction
- Alternative universe (fan fiction), fiction by fan authors that deliberately change facts of the universe written about
- List of fiction employing parallel universes
Music
- Parallel Universe (4hero album)
- Parallel Universe (Garnet Crow album)
- "Parallel Universe" (song), a 2000 song by the Red Hot Chili Peppers
- Kalakala: Songs from a Parallel Universe (with a song cycle for solo cello by Serena Tideman)
Literature, movies, & television
- "Parallel Universe" (Red Dwarf), a 1988 episode of Red Dwarf
- Parallel Universes (documentary), a 2001 BBC/Horizon documentary movie
- Mirror Universe, a fictional parallel universe in which several Star Trek television episodes take place
Other
- Parallel Universe (company), a movie company