The definition of science fiction Britannica Concise Encyclopedia?

Science Fiction is a genre of speculative fiction that explores imaginative and futuristic concepts, often involving advanced technology, space exploration, time travel, parallel universes, and extraterrestrial life. It typically examines the impact of scientific advancements on individuals and society, blending elements of both fiction and scientific possibility. Through its narratives, science fiction often reflects contemporary social issues and human experiences, prompting readers to consider the implications of innovation and change.