Before long, Mirror Universe Spock begins to suspect the truth about Kirk and his crew members. "Mirror, Mirror" remains one of the best episodes of Star Trek: The Original Series.

Mirror, Mirror (Season 2) Spock in a goatee! The Mirror Universe, a place of alternate realities and a lot of guys wearing sashes, was a relatively new concept when TOS explored it during its ...

What we know from Star Trek canon, based on the mirror universe episodes from Star Trek: Deep Space Nine, is that Spock rose in the ranks of the Terran Empire to become Commander-in-Chief.

Best known as the "episode where Spock has a beard," "Mirror, Mirror" takes the crew into an alternate universe in which the peaceful Federation is instead a brutal and militaristic Terran Empire.

Every Spock is different, and Discovery’s new Spock, played by Ethan Peck, ... a weirdo mushroom-based propulsion system and an encounter with the Mirror Universe into one season 1 arc, ...