Fiction is any creative work, chiefly any narrative work, portraying individuals, events, or places in ways that are imaginary or inconsistent with history, fact, or plausibility. In a narrow sense, "fiction" refers to written narratives in prose – often limited to novels, novellas, and short stories. More broadly, however, fiction encompasses imaginary narratives expressed in any medium, including not just writings but also live theatrical performances, films, television programs, radio dramas, comics, role-playing games, and video games.

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In the new Disney Pixar movie Lightyear, time gets bendy. Is time travel real, or just science fiction?

What Is the Multiverse? Is It Just Science Fiction, or Does It Really Exist?

Not Science Fiction: Quantum Teleportation Provides Express Lane for Data Communication

No Longer Science Fiction: De-Extinction of the Tasmanian Tiger Moves One Step Closer

Large scale space habitats, popularized by Princeton’s Gerard O’Neill, have been written off as science fiction for decades. But a new study is optimistic that advances in space infrastructure could make them a reality. "It’s certainly what SpaceX are working toward ... this genuinely is possible."

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Our pick of the best sci-fi and speculative fiction books for 2022

'Sharks' Are Embattled Heroes at the American Museum of Natural History

The major science-fiction films that get botany spectacularly wrong