Science fiction
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Science fiction is a genre of fiction dealing with imaginary but more or less plausible (or at least non-supernatural) content such as future settings, futuristic science and technology, space travel, aliens, and paranormal abilities. Exploring the consequences of scientific innovations is one purpose of science fiction, making it a "literature of ideas".— Excerpted from Science fiction on Wikipedia, the free encyclopedia.
Painting of a green planet rising in the horizon behind a classical-style building on an alien moonscape.
Science fiction

Exploring the Unknown

Painted cover art for a 1917 edition of from A Princess of Mars: a man with a sword stands in front of and defends a woman in a long red cloak
Alien worlds

Alien worlds

Burroughs' Barsoom series

Lost worlds

The Lost World literary genre is a fantasy or science fiction genre that involves the discovery of a new world out of time, place, or both. It began as a subgenre of the late-Victorian imperial romance and remains popular to this day.— Excerpted from Lost World (genre) on Wikipedia, the free encyclopedia.

Burroughs' Caspak trilogy

Space and the universe

Terrestrial exploration

New lifeforms

Photograph of Robbie the Robot, from the film Forbidden Planet, taken at the 2006 San Diego Comic Convention
Strange, new forms of life

Alien lifeforms

Artificially-engineered lifeforms

Constructed, re-vivified, genetically engineered or otherwise intentional, artificial creation of new lifeforms.

Machine lifeforms

Newly discovered lifeforms

Mutations

Both natural or accidental, artificial changes to existing life.

Science and inventions

New discoveries, new inventions and new technology.

Edisonade

"Edisonade" is a modern term, coined in 1993 by John Clute in his and Peter Nicholls' The Encyclopedia of Science Fiction, for stories based around a brilliant young inventor and his inventions, many of which would now be classified as science fiction. This sub-genre started in the Victorian and Edwardian eras and had its apex of popularity during the late 19th and early 20th centuries.— Excerpted from Edisonade on Wikipedia, the free encyclopedia.

Time and reality

Alternative realities

Other dimensions

Time travel

Afterlife

The World of Tomorrow

Utopian novels, views of the future and predictions of things to come.

Other

Humour

Miscellaneous fiction

Non-fiction

Thrillers

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