- 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
Theorized but never before seen in the Alpha nor Delta quadrants, UFP astrotheorists had presumed the hypothetical nebula's explosive plasma strands would burn out after a few years, but Marayna's nebula discovered in the Delta Quadrant is centuries old.