- 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
A Class M world whose xenophobic natives have leaked little of their world to the Federation, including the work to save their dying star that perhaps climaxes with Dr. Timicin's work.