- "So to land I need to get rid of the BO and Engine module, okay?"
- ―Dr. Stone on the BO
The Orbital Module (also known as the B.O., short for Bytovoi otsek) is the upper spherical module of the Soyuz Capsule . Its primary uses are for habitation and storing supplies and other cargo.
Ryan Stone enters the Orbital Module after escaping the fire at the International Space Station along with the Fire Extinguisher . After a sigh of relief, a loud, rattling explosion is heard. She proceeds down into the Command Module to prepare the undocking sequence.
The Orbital Module features a docking mechanism, communication devices, a spare spacesuit, an airlock , and other supplies. The Orbital Module is disposed later in the film, when Ryan Stone proceeds to the Tiangong Space Station .