- 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
An astroidal satellite, cratered and gray, much like Luna, that threatened planetwide climactic crisis and an impact crater 1,600 km across if it fell out of its 55,000 km orbit in 2367 — a disaster averted by Q.