Soyuz TM-8 was a 1989 spaceflight which carried the fifth long duration crew to the Soviet space station Mir.

[2] It was part of the Soyuz-TM series of spacecraft, which were the fourth generation of the Soviet Soyuz.

Soyuz TM-8 was the eighth crewed spaceflight to Mir, and spent 166 days in orbit.

During the Soyuz spacecraft's final approach to Mir (4 metre distance), the Kurs rendezvous and docking system malfunctioned, so Viktorenko took over manual control and withdrew to 20 metres, and then docked manually.

Soyuz TM-8 landed at 04:36 UTC on 19 February 1990, after an uneventful flight to Earth.