Tags: Artificialsatellite, Satellite.
Soyuz T-4 was a Soviet space mission which launched the crew of Salyut 6 EO-6 the sixth and final long-duration crew of the Salyut 6 space station. It was launched on 12 March 1981 and docked with the station the next day. During their stay the EO-6 crew was visited by Soyuz 39 and Soyuz 40. Soyuz T-4 returned to Earth on 26 May 1981.