Science fiction is a special type of fiction, or story. Humans have long wondered what life on another planet might be like. People have also wondered how different kinds of technology might affect life on Earth. Made-up stories that address such questions are called science fiction.
These stories may discuss ideas about scientific facts or real technology. But they also involve a lot of imagination. For example, a story might describe people meeting with space aliens for the first time. Another story might imagine what would happen if robots or computers could think and feel like humans. Many science fiction stories present different possible futures for human society.