Soyuz 25

Soyuz 25 was a Soyuz spacecraft which launched on 9 October 1977 02:40 UTC. It transported two cosmonauts to Salyut 6. Soyuz 25 was the first flight to the new Salyut 6 Space Station, but the craft failed to dock. The crew was Vladimir Kovalyonok and Valery Ryumin.