science fiction

highly imaginative fiction involving some actual or projected scientific phenomenon

Science fiction (abbreviated SF or sci-fi with varying punctuation and case) is a broad genre of fiction that often involves speculations based on current or future science or technology. Science fiction is found in books, art, television, films, games, theater, and other media.In organizational or marketing contexts, science fiction can be synonymous with the broader definition of speculative fiction, encompassing creative works incorporating imaginative elements not found in contemporary reality; this includes fantasy, horror, and related genres.Science fiction differs from fantasy in that, within the context of the story, its imaginary elements are largely possible within established or postulated laws of nature (though some elements in a story might still be pure imaginative speculation).
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Noun
1. literary fantasy involving the imagined impact of science on society
(hypernym) fantasy, phantasy
(hyponym) cyberpunk
(class) teleportation

science fiction, S.F., fiction work with imaginary scientific developments and/or space travel as central themes

n. science fiction, sci fi