James S.A. Corey is the pen name for Daniel Abraham and Ty Franck, authors of The Expanse — a nine-novel science fiction series spanning the colonised solar system and adapted for television by Amazon Prime Video.
James S.A. Corey is the pen name under which Daniel Abraham and Ty Franck co-write The Expanse series. Abraham is a novelist and editor who had already published several fantasy series; Franck was a personal assistant to George R.R. Martin and had been developing the Expanse universe as a tabletop roleplaying game setting. Their collaboration began when Franck showed Abraham his worldbuilding materials; Abraham recognised their potential as the basis for a novel. Leviathan Wakes appeared in 2011.
The Expanse is set approximately 200 years in the future, in a solar system where humanity has colonised Mars, the asteroid belt, and the moons of the outer planets. The political landscape is a three-way tension between Earth (the origin world, declining in influence), Mars (a military power with a terraforming project as national identity), and the Belt (the working-class population that mines and transports resources for the inner planets, with its own developing culture and language). This political architecture — recognisably analogous to real-world power dynamics — is one of the series’ great strengths.
The inciting event of the series is the discovery of an alien protomolecule, a billion-year-old biological technology of unknown origin and purpose. The nine novels trace its consequences across the solar system, the discovery of alien ring gates connecting other star systems, and humanity’s fumbling, violent, occasionally brilliant response to contact with something genuinely beyond its understanding.
The Expanse television series, produced by SyFy and later Amazon Prime Video, ran for six seasons (2015–2022) and is considered one of the most faithful and accomplished science fiction adaptations in the medium’s history. The show covers roughly the first six novels; the final three novels extend the story beyond what the show depicts.