Expedition 12
| Promotional poster | |
| Mission type | Long-duration expedition | 
|---|---|
| Mission duration | 187 days, 14 hours, 1 minute (at ISS) 189 days, 19 hours, 53 minutes (launch to landing) | 
| Orbits completed | 2,987 | 
| Expedition | |
| Space station | International Space Station | 
| Began | 3 October 2005, 05:27 UTC | 
| Ended | 8 April 2006, 19:28 UTC | 
| Arrived aboard | Soyuz TMA-7 | 
| Departed aboard | Soyuz TMA-7 | 
| Crew | |
| Crew size | 2 | 
| Members | William S. McArthur Valeri I. Tokarev | 
| EVAs | 2 | 
| EVA duration | 11 hours, 5 minutes | 
| Expedition 12 mission patch William S. McArthur, Jr. (United States left), Valeri I. Tokarev (Russia right) | |
Expedition 12 (2005) was the 12th expedition to the International Space Station, launched from Kazakhstan using the Russian Soyuz TMA-7 spacecraft. The crew landed back in Kazakhstan on 8 April 2006 with the addition of the first Brazilian astronaut, Marcos Pontes.
American entrepreneur Gregory Olsen was launched in the Soyuz TMA-7 spacecraft and returned with Expedition 11 on Soyuz TMA-6 on 11 October 2005 thereby becoming the third space tourist.