 Salyut 2 re-entered on 28 May 1973.The module DOS-3 was launched on 11 May 1973 – three days before the launch of Skylab – and was slated to become the next civilian space station with a Salyut designation.Due to errors in the flight control system while out of range from ground control, the station fired its orbital-correction engines until it consumed all of its fuel.