Science fiction

Science fiction is a genre of fiction dealing with imaginative content such as futuristic settings, futuristic science and technology, space travel, time travel, faster than light travel, parallel universes, and extraterrestrial life. It often explores the potential consequences of scientific and other innovations, and has been called a “literature of ideas”. Authors commonly use science fiction as a framework to explore politics, identity, desire, morality, social structure, and other literary themes.

Science fiction article in wikipedia