The Expanse is an American science fiction television series developed by Mark Fergus and Hawk Ostby for the Syfy network; it is based on the series of novels of the same name by James S. A. Corey. Set in a future where humanity has colonized the Solar System, it follows a disparate band of protagonists – United Nations Security Council member Chrisjen Avasarala (Shohreh Aghdashloo), cynical detective Josephus Miller (Thomas Jane), and ship's officer James Holden (Steven Strait) and his crew – as they unwittingly unravel and place themselves at the center of a conspiracy that threatens the system's fragile peace, while dealing with existential crises brought forth by newly discovered alien technology.

The Expanse received positive critical response, with particular praise for its visuals, character development and political narrative. It received a Hugo Award for Best Dramatic Presentation and three Saturn Award nominations for Best Science Fiction Television Series. Syfy cancelled the series after three seasons. Amazon later acquired the series, producing three more seasons, with the series concluding with its sixth. The series premiered on December 14, 2015 on Syfy, with the series finale being released on Amazon on January 14, 2022.