"SF" redirects here. For the Californian city, see
San Francisco.
Cover, Dynamic Science Fiction, August 1953
Science fiction (often shortened to sci-fi or SF) is the type genre of speculative fiction which deals with imaginative and futuristic concepts such as advanced science and technology, space exploration, interstellar travel, parallel universes, and extraterrestrial life. It has been called the "literature of ideas", and it often explores the potential consequences of scientific, social, and technological innovations. Science fiction stories can be novels, movies, TV shows, video games, comic books and other literature.