The most recent series to feature episodes set in this parallel universe where the Federation doesn't exist and the evil Terran Empire rules supreme was Star Trek: Discovery. Other series that also tackled some pretty awesome Mirror Universe episodes were Star Trek: Enterprise and Deep Space Nine.
So, what do you do if you happen to travel through a mirror darkly thanks to a transporter incident or going through a wormhole? What are the tricks to surviving the Mirror Universe? SYFY WIRE has compiled a list of dos and don'ts to follow in order to help you boldly navigate the perils of the Mirror Universe.
First off, DO dress for success. Discard those Federation uniforms and go sexy space pirate by carrying a knife at your side. Add some gruesome face scars, show your midriff, and wear some dramatic eye makeup. That'll make you fit right in.
Don't get too comfortable in your new evil role, and don't develop feelings for or have sexy times with people you normally wouldn't in the regular universe. But do research your mirror counterpart so you can pretend you're your own mirror-self. Pro Tip: If you happen to come face to face with your evil counterpart, definitely don't trust them.
Do assume that it is opposite day. If someone's a good guy in your world, you can bet your sweet ass he'll be evil in the Mirror Universe and vice versa. However, don't assume that it's opposite day for Vulcans and Miles O'Brien, because he's the best.
Do give an eye exam, because the Terrans are sensitive to light, and don't go anywhere near anything called an agony booth, for obvious reasons.
Do you have any other dos and don'ts into surviving a trip into Star Trek's Mirror Universe you'd like to share? Chime in in the comments below.
Additional material by Nathalie Caron.