Mirror Universe

The characters in the Mirror Universe are aggressive, mistrustful and opportunistic in personality. Whereas the Star Trek universe depicts an optimistic future in which the Earth-based democratic United Federation of Planets values peace, co-operation and exploration, episodes set in the Mirror Universe feature the human-dominated totalitarian Terran Empire which values war, despotism and conquest instead. Humans in the Mirror Universe are typically referred to as "Terrans". In Star Trek: Discovery, it is stated that humans from the Mirror Universe suffer from photophobia (a sensitivity to light). ==Television appearances==

The Original Series The Mirror Universe was first introduced in the original Star Trek episode "Mirror, Mirror", which featured a brutal Empire, managed by humans and their Vulcan allies, in place of the United Federation of Planets. The Mirror Captain Kirk of the ISS Enterprise was a mass murderer who was promoted to Captain after assassinating Captain Christopher Pike. Discipline aboard starships was enforced through agony booths and agonizers carried by crewmembers. Officers were barbaric in behavior and advanced in rank by killing superiors who they thought were incompetent. Nazi-style salutes were used by crewmembers to show loyalty to their captain. Episodes Deep Space Nine The Mirror Universe was later revisited in the Deep Space Nine second-season episode "Crossover"; it was turned into a story arc that spanned into the final season, with five Mirror Universe episodes over the course of five seasons. Episodes Enterprise A two-part episode of Star Trek: Enterprise, entitled "In a Mirror, Darkly", introduces the early developments of the Mirror Universe. Episodes Prodigy In the second season of Star Trek: Prodigy, the crew of the USS Protostar wind up in the mirror universe after an interphasic rift splits the USS Voyager-A into a number of alternate realities. ==Appearances in other media==

In addition to the television episodes, a number of ancillary tie-in works make use of the Mirror Universe setting. These works may contradict continuity as established in the television episodes, and are not considered canon. Novels Star Trek: Stargazer The Star Trek: Stargazer novel Three by Michael Jan Friedman features the Mirror Universe. Shatnerverse Various novels have been set in the Deep Space Nine version of the Mirror Universe, including a trilogy by William Shatner, which reveals the Mirror Kirk (or "Emperor Tiberius" as he calls himself) is still alive and plotting to reconquer the Empire. The Mirror Universe storyline was concluded in the novel Rise Like Lions, released in November 2011. A further story taking place in the Mirror Universe, Section 31 - Disavowed, was released in October 2014. Games A number of Star Trek games take place in the Mirror Universe or reference it. The Mirror Universe Saga is a trade paperback that reprints eight issues of DC Comics' Star Trek comic book (issues #9-16) chronicling an encounter between the Mirror Universe and the Prime Universe. It is set immediately after the events of Star Trek III: The Search for Spock. The series was written by Mike W. Barr and drawn by Tom Sutton & Ricardo Villagrán. This version postulates the divergence of history to start at the time of the Earth-Romulan War, with the conquest of Earth by the Romulans; after Earth's liberation, the resistance became an empire-building government. From 2017 to 2018, IDW Publishing published three limited series set in the Mirror Universe: Mirror Broken (2017), Through the Mirror (2018), and Terra Incognita (2018). These series focused on Jean-Luc Picard and the crew of the ISS Enterprise. A new limited series, entitled Mirror War, was first published in 2021. It follows Picard's ongoing galactic conquest which draws the attention of the Klingon-Cardassian Alliance. Web series The fan-produced web series Star Trek Continues included an episode set in the Mirror Universe called "Fairest of Them All". ==References==