Edited sentence: Because of the failure of a visiting crew to successfully dock and the resultant decision to send an unmanned Soyuz craft as a replacement return vehicle, the Soyuz 32 crew had no visitors.Cosmonauts Vladimir Lyakhov and Valery Ryumin spent 175 days in space, setting a new space endurance record.It was the eighth mission to and seventh successful docking at the orbiting facility.Soyuz 32 (, Union 32) was a 1979 Soviet manned space flight to the Salyut 6 space station.The Soyuz 32 crew were the third long-duration crew to man the space station