I googled mirror universe and the first links is a Wikipedia page about Star Trek: "The Mirror Universe is a parallel universe in which the plots of several Star Trek television episodes take place."
I googled mirror universe and the first links is a Wikipedia page about Star Trek: "The Mirror Universe is a parallel universe in which the plots of several Star Trek television episodes take place."
I googled mirror universe and the first links is a Wikipedia page about Star Trek: "The Mirror Universe is a parallel universe in which the plots of several Star Trek television episodes take place."