Soyuz TM-6 Soyuz TM-6 was a Soyuz spacecraft which launched on 29 August 1988 04:23 UTC. It transported one member of Expedition 3, one of Expedition 4 and a Afghan cosmonaut to Mir. The EO-3 member was Vladimir Lyakhov, the EO-4 member was Valeri Polyakov, and the Afghan cosmonaut was Abdul Mohmand.