Star Trek: The Original Series the 23rd century bearing a crew dedicated to exploring the Milky Way Galaxy. Roddenberry noted a number of influences on his idea, some of which includes A. E. van Vogt's tales of the spaceship "Space Beagle", Eric Frank Russell's "Marathon" series of stories, and the film "Forbidden Planet" (1956). Some have also drawn parallels with the television series "Rocky Jones, Space Ranger" (1954), a space opera which included many of the elements that were integral to "Star Trek"—the organization, crew relationships, missions, part of the bridge layout, and some technology. Roddenberry also drew heavily from C. S. Forester's Horatio Hornblower
Mirror, Mirror (Star Trek: The Original Series) a Mirror, Darkly", which is a sequel to the Original Series episode "The Tholian Web", reveals the fate of the USS "Defiant". The Mirror Universe played a large role in of "" and was visited in "Despite Yourself", "The Wolf Inside", "Vaulting Ambition", and "What's Past Is Prologue". For the franchise's 30th anniversary, "TV Guide" ranked "Mirror, Mirror" No. 3 on its list of the 10 best "Star Trek" episodes from all series. Mirror, Mirror (Star Trek: The Original Series) "Mirror, Mirror" is the fourth episode of the of the American science fiction television series "". Written by Jerome Bixby