- Star Trek: The Motion Picture
- Star Trek II: The Wrath of Khan
- Star Trek III: The Search for Spock
- Star Trek IV: The Voyage Home
- Star Trek V: The Final Frontier
- Star Trek VI: The Undiscovered Country
- Star Trek Generations
Class-M planet endangered by increasing stellar flares and instability in 2365, home to the 223 descendants — with two more births due — of the mostly forgotten Neo-Transcendentalists dropped off by the S.S. Mariposa colony ship that left Earth in 2123. Anachronisms even then, the people took refuge 30 meters below the surface but have no advanced technology.