During their time in orbit, Klimuk and Hermaszewski carried out various geoscience experiments and photographed the Earth – orbiting it 126 times. Over the duration of their stay at the space station, Hermaszewski and Klimuk—sometimes with the aid of Vladimir Kovalyonok and Aleksandr Ivanchenkov, the two other cosmonauts who had already been stationed at Salyut 6 prior to the arrival of the Soyuz 30 mission—carried out a total of eleven different experiments while in space that had been planned internationally as part of the programme.