Expedition 12

ISS Expedition 12
	Promotional poster
Mission type	ISS 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) ISS expeditions ← Expedition 11 Expedition 13 →

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.^[1]