Science fiction

Science fiction is the genre of speculative, science-based fiction that imagines advanced and futuristic scientific or technological progress. The elements of science fiction have evolved over time: from space exploration, extraterrestrial life, time travel, and robotics; to parallel universes, dystopian societies, and biological manipulations; and, most lately, to information technology, transhumanism, posthumanism, and environmental challenges. Science fiction often specifically explores human responses to the consequences of these types of projected or imagined scientific advances.