Science fictionScience fiction (sometimes shortened to SF or sci-fi) is a genre of speculative fiction, which typically deals with imaginative and futuristic concepts such as advanced science and technology, space exploration, time travel, parallel universes, and extraterrestrial life. Science fiction can trace its roots to ancient mythology. It is related to fantasy, horror, and superhero fiction and contains many subgenres. Its exact definition has long been disputed among authors, critics, scholars, and readers.
FantasyFantasy is a genre of speculative fiction involving magical elements, typically set in a fictional universe and usually inspired by mythology or folklore. The term "fantasy" can also be used to describe a "work of this genre", usually literary. Its roots are in oral traditions, which became fantasy literature and drama. From the twentieth century, it has expanded further into various media, including film, television, graphic novels, manga, animations and video games.
Fictional universeA fictional universe is the internally consistent fictional setting used in a narrative work or work of art, most commonly associated with works of fantasy and science fiction. Fictional universes appear in novels, comics, films, television shows, video games, art, and other creative works. A fictional universe may be an alternative version of the real world, differing only in the particulars of the story.
Fan fictionFan fiction or fanfiction (also abbreviated to fan fic, fanfic, fic or FF) is fictional writing written in an amateur capacity by fans, unauthorized by, but based on an existing work of fiction. The author uses copyrighted characters, settings, or other intellectual properties from the original creator(s) as a basis for their writing. Fan fiction ranges from a couple of sentences to an entire novel, and fans can retain the creator's characters and settings and/or add their own. It is a form of fan labor.
Hard science fictionHard science fiction is a category of science fiction characterized by concern for scientific accuracy and logic. The term was first used in print in 1957 by P. Schuyler Miller in a review of John W. Campbell's Islands of Space in the November issue of Astounding Science Fiction. The complementary term soft science fiction, formed by analogy to hard science fiction, first appeared in the late 1970s.
Science fiction fandomScience fiction fandom or SF fandom is a community or fandom of people interested in science fiction in contact with one another based upon that interest. SF fandom has a life of its own, but not much in the way of formal organization (although formal clubs such as the Futurians (1937–1945) and the Los Angeles Science Fantasy Society (1934–present) are recognized examples of organized fandom). Most often called simply "fandom" within the community, it can be viewed as a distinct subculture, with its own literature and jargon; marriages and other relationships among fans are common, as are multi-generational fan families.
Unidentified flying objectAn unidentified flying object (UFO), or unidentified aerial (or anomalous) phenomenon (UAP), is any perceived aerial phenomenon that cannot be immediately identified or explained. Upon investigation, most UFOs are identified as known objects or atmospheric phenomena, while a small number remain unexplained. While unusual sightings have been reported in the sky throughout history, UFOs became culturally prominent after World War II, escalating during the Space Age.
CyberpunkCyberpunk is a subgenre of science fiction in a dystopian futuristic setting that tends to focus on a "combination of lowlife and high tech", featuring futuristic technological and scientific achievements, such as artificial intelligence and cyberware, juxtaposed with societal collapse, dystopia or decay. Much of cyberpunk is rooted in the New Wave science fiction movement of the 1960s and 1970s, when writers like Philip K. Dick, Michael Moorcock, Roger Zelazny, John Brunner, J. G.
Three Laws of RoboticsThe Three Laws of Robotics (often shortened to The Three Laws or Asimov's Laws) are a set of rules devised by science fiction author Isaac Asimov, which were to be followed by robots in several of his stories. The rules were introduced in his 1942 short story "Runaround" (included in the 1950 collection I, Robot), although similar restrictions had been implied in earlier stories. The Three Laws, presented to be from the fictional "Handbook of Robotics, 56th Edition, 2058 A.D.
CyberspaceCyberspace is a concept describing a widespread interconnected digital technology. "[The expression dates] from the first decade of the diffusion of the internet. It refers to the online world as a world 'apart,' as distinct from everyday reality. In cyberspace people can hide behind fake identities, as in the famous The New Yorker cartoon ...
