|Mission Name:||Soyuz 18|
|Call Sign:||Кавказ (Kavkaz - "Caucasus")|
|Number of Crew Members:||2|
|Launch:||May 24, 1975|
|Landing:||July 26, 1975|
51° N, 68° E
|Duration:||62 days, 23 hours, 20 minutes|
|Number of Orbits:||993|
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.