Learning that it is an extra-solar bio-weapon known as the protomolecule, they attempt to destroy Eros. The crew of the Rocinante, along with members of the OPA, attack the station responsible for the biohazard on Eros. The crew of the Rocinante, with Miller's help, investigates and eventually discovers a biohazard that kills off most of the humans on the asteroid Eros, including Julie. They rename the ship Rocinante, which becomes the main setting of the series. James Holden, Naomi Nagata, Alex Kamal and Amos Burton survive both attacks and escape in the Tachi, a Martian gunship.

The space-freighter Canterbury and the Martian Navy flagship Donnager are destroyed by unknown stealth ships. Ceres police detective Joe Miller is sent to find a missing young woman, Julie Mao. The three largest powers are the United Nations of Earth and Luna, the Martian Congressional Republic on Mars, and the Outer Planets Alliance (OPA), a loose confederation of the asteroid belt and the moons of Jupiter and Saturn.Ĭhrisjen Avasarala, a United Nations executive, works to prevent war between Earth and Mars. Hundreds of years in the future, humanity has colonized the Solar System. Amazon later acquired the series, producing three more seasons, with the sixth and final season premiering on December 10, 2021. Syfy cancelled the series after three seasons. It received a Hugo Award for Best Dramatic Presentation and three Saturn Award nominations for Best Science Fiction Television Series. The Expanse has received a positive critical response, with particular praise for its visuals, character development and political narrative. It follows a disparate band of protagonists- United Nations Security Council member Chrisjen Avasarala ( Shohreh Aghdashloo), police detective Josephus Miller ( Thomas Jane), 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 state of cold war, while dealing with existential crises brought forth by newly discovered alien technology. The series is set in a future where humanity has colonized the Solar System. The Expanse is an American science fiction television series developed by Mark Fergus and Hawk Ostby for the Syfy network, and is based on the series of novels of the same name by James S.

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