- For the behind the scenes concept, see shared multiverse.
- "So, Jay is saying he's from, like, a mirror-world. Or a parallel universe that's very, very similar to ours."
- "Multiverse would be a more apt description."
- —Cisco Ramon and Martin Stein[src]
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. There are 53 known Earths, with the 53rd not actually having a formal designation due to its horrific state.
- "This is our earth. Let's call it Earth One. And this second Earth, let's call it Earth Two. This is where Jay claims to be from. And these other Earths, Three, Four, Five, to infinity, all of them, are nearly identical to ours. And they all exist at the same time, giving us endless alternatives to what we have here. For example, the Joe West on Earth Two, your doppelgänger, he might not be a detective. He could be a Nobel Prize-winning physicist. And you, the Barry Allen here is the Flash, but over there, he could be an electrician."
- —Martin Stein explaining the multiverse[src]
In early 2015, Barry Allen and the rest of Team Flash accidentally opened a singularity above Central City; though they succeeded in closing it, a series of 52 breaches between Earths One and Two were opened throughout the city as a result of their actions.
Between mid to late 2015 and early 2016, an Earth Two speedster known as Zoom began exploring the multiverse before using the breaches to launch an assault on Earth One's Central City in an attempt to steal The Flash's speed. Zoom sent numerous meta-humans through the breaches, each tasked with killing The Flash, but none succeeded. Team Flash, in an effort to stop Zoom's onslaught, systematically sealed each of the breaches, leaving only one open on a lower level inside S.T.A.R. Labs. Barry, Cisco Ramon, and Harrison Wells used the breach to travel to Earth Two in order to rescue Jesse Wells, sealing the breach upon their return.
Attempting to increase his speed, Barry Allen used a tachyon device, which in turn caused him to run too fast and accidentally create a breach between Earth One and Earth Thirty-Eight, the parallel world that is the home of Supergirl.
During his travels, Zolomon discovered that Earth One happened to be in the center juncture of the entire multiverse, and that from there one could travel to any of the other infinite number of Earths. Enthralled by the idea of conquering all of existence, in May of 2016 he attempted to use the Mercury Labs Magnetar to instantaneously destroy every Earth in the multiverse besides Earth One, using its central location as a means of targeting every other universe at the same time. Through the sacrifice of his own time remnant, Barry Allen was able to stop the device moments before it destroyed the multiverse, and also managed to defeat Hunter in the process.
Known parallel universes
- Earth One
- Earth Two
- Earth Three
- Earth Twelve
- Earth Thirteen
- Earth Sixteen
- Earth Seventeen
- Earth Nineteen
- Earth Twenty-Two
- Earth Thirty-Five
- Earth Thirty-Seven
- Earth Thirty-Eight
- Earth Forty-Seven
- Earth Forty-Eight
- An unnamed Earth (home to CBS' The Flash)
- An unidentified Earth (home to Hells Wells)
- An unidentified Earth (home to the Francophone Harrison Wells)
- An unidentified Earth (a world which nearly destroyed Earth Nineteen)
- An unidentified Earth (a volcanic-like Earth)
Known extra-dimensional planes
Known parallel timelines
- Original timeline
- Pre-flashpoint timeline
- Flashpoint timeline
- Original post-flashpoint timeline
- Current post-flashpoint timeline
- Legion of Doom's alternate reality
Possible parallel timelines
- Star City 2046
- New Valhalla
Known constants in the multiverse
- Harrison Wells
- Henry Allen/Jay Garrick
- Oliver Queen
- S.T.A.R Labs
- Big Belly Burger
- Super-intelligent gorillas
- Central City
- Star City/Starling City
- The Godfather
- Albert Einstein
- Beyoncé Knowles
- Mariah Carey
- Al Capone
- Super Mario
- Harry Potter
- Star Wars
- Hamilton (musical)
- World War II
- Atomic bombs
- "Worlds Finest" (mentioned)
- "Missing" (mentioned)
- "Crisis on Earth-X, Part 2" (mentioned)
Freedom Fighters: The Ray
- "Episode Four" (mentioned)
- The fact that the number of breaches that opened in Central City is 52 is a reference to both the multiverse crisis storyline known as 52 and The New 52 imprint in the DC Comics.
- During an interview, the producers of the NBC television show Powerless, jokingly referred to the Multiverse by saying that their show takes place on "Earth-P" as it was a DC Comics comedy. This is of course, unofficial and they actually revealed, at the time of the interview, that there was no plans to crossover with any other DC property, the show has since been cancelled.
- On numerous occasions, it has been stated that there are an infinite number of Earths in the Multiverse. On the other hand, Kara Danvers claimed that there were 52 of them. However, Harrison Wells quickly corrected her, describing Earth-X as a 53rd Earth, indicating that, aside for Earth-X, there are 52 known Earths in the multiverse.
- ↑ "Worlds Finest"
- ↑ "Crisis on Earth-X, Part 2"
- ↑ "Fast Enough"
- ↑ 4.0 4.1 "The Race of His Life"
- ↑ "Welcome to Earth-2"
- ↑ "Escape from Earth-2"
- ↑ "Worlds Finest"
|Earth One • Earth Two • Earth Three • Earth Twelve • Earth Thirteen • Earth Sixteen • Earth Seventeen • Earth Nineteen • Earth Twenty-Two • Earth Thirty-Five • Earth Thirty-Seven • Earth Thirty-Eight • Earth Forty-Seven • Earth Forty-Eight • Earth-X|