Soyuz 18

Soyuz 18, of the Soyuz spacecraft series, brought cosmonauts Pyotr Klimuk and Vitali Sevastyanov to the Salyut 4 space station where they remained in orbit for 63 days.

The focus of the mission seems to have been research into long-term stays in space, with the crew performing various biomedical experiments and growing plants in orbit. They also made observations of the Earth and Sun.

The name Soyuz 18 was also given to an earlier, unsuccessful Soyuz flight that is now often referred to as Soyuz 18-1 or Soyuz 18a.

Crew

• Pyotr Klimuk
• Vitali Sevastyanov