James S.A. Corey is the pen name of collaborators Daniel Abraham and Ty Franck, the writing team behind The Expanse series. Abraham is an established novelist in his own right, with work spanning epic fantasy and science fiction; Franck began his career as an assistant to George R.R. Martin. The two met through that connection and began developing what would become The Expanse together.
The series began with Leviathan Wakes in 2011 and ran to nine novels, following humanity several centuries into the future as it has colonised the solar system and fractured politically along the lines of Earth, Mars, and the outer planets. Praised for its scientific rigour, morally complex characters, and political realism, it is widely regarded as one of the defining works of contemporary science fiction. A television adaptation ran for six seasons. Abraham and Franck have continued writing together under the Corey name with a new series, The Captive's War, beginning in 2025.
