Russian Orbital Service Station
From Spacefaring
The Russian Orbital Service Station is a proposed Russian orbital space station scheduled to begin construction in 2027. Initially an evolution of the Orbital Piloted Assembly and Experiment Complex (OPSEK) concept, ROS developed into plans for a new standalone Russian space station built from scratch without modules from the Russian Orbital Segment of the ISS. However on December 2025, Oleg Orlov announced that ROS will once again be assembled as part of the ISS, and will be separated from the rest of the station shortly before it is scheduled to be deorbited by 2030.
