The Sojourner was a colony ship.
The Sojourner, a United Nations colony ship, transited to the Sol gate along with the Edward Israel but was held at the Ring blockade for thirteen weeks waiting for permission to transit the Rings. The ship was attacked by Belter pirates, who spaced the crew and colonists on a deliberate trajectory to strike the UNN and MCRN ships guarding the Sol gate, to send the message that the Belters do not forget the hundreds of years of abuse at the hands of the Inners.
- The Sojourner is likely a reference to the space opera audio drama The Sojourn from Spacedock. James S.A. Corey and Spacedock have been shown interacting on Twitter, and the latter produced the canon ship breakdowns for the television series on YouTube.