Space opera is a subgenre of science fiction that emphasizes science fictional space warfare, with use of melodramatic, risk-taking space adventures and chivalric romance. Set mainly or entirely in outer space, it features technological and social advancements (or lack thereof) in faster-than-light travel, futuristic weapons, and sophisticated technology, on a backdrop of galactic empires and interstellar wars with fictional aliens, often in fictional galaxies.

The Best Space Operas of All Time According to Experts