The Progress (Russian: Прогресс) is a Russian expendable cargo spacecraft. Its purpose is to deliver supplies needed to sustain human presence in orbit. While it does not carry a crew it can be boarded by astronauts when docked with a space station, hence it being classified as manned by its manufacturer.[1][2][3] Progress is derived from the crewed Soyuz spacecraft and launches on the same vehicle, a Soyuz rocket.