space opera

[ op-er-uh, op-ruh ]
/ ˈɒp ər ə, ˈɒp rə /

noun

a television or radio drama or motion picture that is a science-fiction adventure story.

Origin of space opera

First recorded in 1945–50

British Dictionary definitions for space opera

space opera

noun

a science fiction drama, such as a film or television programme, esp one dealing with interplanetary flight