The 60th episode of Gene Roddenberry’s science fiction series Star Trek airs on NBC. Diana Muldaur guest stars, her second guest shot on the series; she will later appear as a regular in the second season of Star Trek: The Next Generation. 
Stardate 5630.7: Miranda Jones, a telepath who studied mental disciplines on Vulcan, arrives with Ambassador Kolos, a Medusan – an alien life form whose physical form is so hideous, humanoid life forms are driven insane if they look upon him. Also beaming aboard is Larry Marvick, one of the original designers of the Enterprise – and hopelessly in love with Miranda, although she has chosen to spend her life serving as a liason between the Medusans and other humanoids. Miranda senses that someone is actively contemplating murder, and suspects Spock is envious of her once-in-a-lifetime mission – but even Miranda is unaware of the real would-be killer and their target.
written by Jean Lisette Aroeste
directed by Ralph Serensky
music by George DuningCast: William Shatner (Captain James T. Kirk), Leonard Nimoy (Mr. Spock), DeForest Kelley (Dr. Leonard McCoy), James Doohan (Mr. Scott), George Takei (Lt. Sulu), Nichelle Nichols (Lt. Uhura), Walter Koenig (Chekov), Diana Muldaur (Dr. Miranda Jones), David Frankham (Larry Marvick)
Notes: A Medusan character will figure prominently in the animated 21st century spinoff series Star Trek: Prodigy, and their presence will reveal exactly why the goggles are a necessity.
LogBook entry by Earl Green