The Lights of Zetar

"**The Lights of Zetar**"
"The Lights of Zetar"
Star Trek: The Original Series episode
Episode no.	Season 3; Episode 18
Directed by	Herb Kenwith
Written by	Jeremy Tarcher; Shari Lewis
Featured music	Alexander Courage
Cinematography by	Al Francis
Production code	073
Original air date	January 31, 1969
Guest appearances
	Jan Shutan - Lt. Mira Romaine; John Winston - Lt. Kyle; Libby Erwin - Technician; Frank da Vinci - Crewman; William Blackburn - Lt. Hadley; Roger Holloway - Lt. Lemli;
Episode chronology
← Previous; "That Which Survives"	Next →; "Requiem for Methuselah"
	Star Trek: The Original Series season 3
	List of episodes

"The Lights of Zetar" is the eighteenth episode of the third season of the American science fiction television series Star Trek. Written by Jeremy Tarcher and his wife Shari Lewis and directed by Herb Kenwith, it was first broadcast on January 31, 1969.

In the episode, strange incorporeal aliens threaten the Memory Alpha station and the Enterprise.