of or relating to time periods on the whole track millions of years ago which concerned activities in this and other galaxies. Space opera has space travel, spaceships, spacemen, intergalactic travel, wars, conflicts, other beings, civilizations and societies, and other planets and galaxies. It is not fiction and concerns actual incidents and things that occurred on the track.

Space opera is a subgenre of speculative fiction or science fiction that emphasizes romantic adventure, and larger-than-life characters often set against vast exotic settings.

Space Opera was a role-playing game created by Edward E. Simbalist, A. Mark Ratner, and Phil Mc Gregor for Fantasy Games Unlimited in 1980.

Space Opera is a novel by the American science fiction author Jack Vance, first published in 1965 (New York: Pyramid Books).