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Science fiction is a genre of fiction. It differs from fantasy in that, within the context of the story, its imaginary elements are largely possible within scientifically established or scientifically postulated laws of nature (though some elements in a story might still be pure imaginative speculation). Exploring the consequences of such differences is the traditional purpose of science fiction, making it a "literature of ideas". Science fiction is largely based on writing rationally about alternative possibilities. The settings for science fiction are often contrary to known reality.

Following the Age of Enlightenment and the development of modern science itself, Jonathan Swift's Gulliver's Travels was one of the first true science fiction works, together with Voltaire's Micromégas and Kepler's Somnium. This latter work is considered by Carl Sagan and Isaac Asimov to be the first science fiction story. It depicts a journey to the Moon and how the Earth's motion is seen from there. Another example is Ludvig Holberg's novel Nicolai Klimii iter subterraneum, 1741. (Translated to Danish by Hans Hagerup in 1742 as Niels Klims underjordiske Rejse.) (Eng. Niels Klim's Underground Travels.)

The study of science fiction, or science fiction studies, is the critical assessment, interpretation, and discussion of science fiction literature, film, new media, fandom, and fan fiction. Science fiction scholars take science fiction as an object of study in order to better understand it and its relationship to science, technology, politics, and culture-at-large.

The field has grown considerably since the 1970s with the establishment of more journals, organizations, and conferences with ties to the science fiction scholarship community, and science fiction degree-granting programs such as those offered by the University of Liverpool and Kansas University.

Selected science fiction work

First edition (1898) cover of The War of the Worlds
The War of the Worlds (1898) is a science fiction novel by H. G. Wells. It describes the experiences of a character who travels through London as the Earth is invaded by Martians. It is said to be the first story that details a conflict between mankind and an alien race.

The War of the Worlds is split into two parts : Book one: The Coming of the Martians and Book two: The Earth under the Martians. The novel is narrated by an unnamed writer of philosophical articles. Throughout the narrative he struggles to reunite with his wife, while witnessing the Martians rampaging through the southern English counties. Part one also features the tale of his brother, who accompanies two women to the coast in the hope of escaping England as it is invaded.

The plot has been related to invasion literature of the time. The novel has been variously interpreted as a commentary on evolutionary theory, British imperialism, and generally Victorian fears and prejudices. At the time of publication it was classed as a scientific romance. Since then, it has influenced much literature and other media, spawning several films, radio dramas, comic book adaptations, a television series, and sequels or parallel stories by other authors.

Science fiction topics

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