| Mission type | Mir expedition |
|---|---|
| Mission duration | 188 days, 21 hours, 39 minutes, 31 seconds [1] |
| Orbits completed | 2989 |
| Expedition | |
| Space station | Mir |
| Began | 27 July 1992 |
| Ended | 1 February 1993 |
| Arrived aboard | Soyuz TM-15 |
| Departed aboard | Soyuz TM-15 |
| Crew | |
| Crew size | Two |
| Members | Anatoly Solovyev Sergei Avdeyev |
| Callsign | Spring |
| EVAs | 4 |
Long-term Mir expeditions | |
Mir EO-12 (Russian: Мир ЭО-12, also known as Principal Expedition 12) was the twelfth crewed expedition to the space station Mir, lasting from July 1992 until February 1993. The crew, consisting of Russian cosmonauts Anatoly Solovyev and Sergei Avdeyev launched aboard Soyuz TM-15 on 27 July 1992 with French Research Cosmonaut Michel Tognini. After remaining on board Mir for just over six months, Solovyev and Avdeyev returned aboard the same spacecraft on 1 February 1993.
Their mission focused on geophysics, materials science, biotechnology, astronomy and medical experiments. Soyuz TM-15 set a Soyuz spacecraft on orbit endurance record.[2]