|Mission type||ISS Expedition|
|Mission duration||187 days, 14 hours, 1 minute (at ISS)
189 days, 19 hours, 53 minutes (launch to landing)
|Space Station||International Space Station|
|Began||3 October 2005, 05:27UTC|
|Ended||8 April 2006, 19:28UTC|
|Arrived aboard||Soyuz TMA-7|
|Departed aboard||Soyuz TMA-7|
|Members||William S. McArthur
Valery Ivanovich Tokarev
|EVA duration||11 hours, 5 minutes|
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.
|Commander||William S. McArthur, NASA
|Flight Engineer 1||Valery Ivanovich Tokarev, RSA
Station assembly preparations, maintenance and science in microgravity.
The first EVA was on 7 November 2005 for 5 hours and 22 minutes. There were two main objectives, both of which were completed. The first was to install and set up a new camera on the P1 Truss which was later used in the installation of more truss segments. The second was to jettison the Floating Potential Probe which was a failed instrument, designed to measure the station's electrical potential and compare it to the surrounding plasma.
The second spacewalk took place on 3 February 2006 and lasted 5 hours and 43 minutes. The astronauts jettisoned an old Russian Orlan spacesuit, named SuitSat-1, that was equipped with a radio for broadcasts to students around the world. The suit reached the end of its operation life in 2004. They also retrieved the Biorisk experiment, photographed a sensor for a micrometeoroid experiment, and tied off the surviving umbilical of the mobile transporter.
While wake-up music is a tradition aboard space shuttle missions, the ISS crew generally use an alarm clock to wake up. Expedition 12 astronauts received a special treat on 3 November 2005 when Paul McCartney performed Good Day Sunshine and English Tea in a first ever concert linkup from the Arrowhead Pond in Anaheim, California on his US tour. The event was broadcast live on NASA TV
- BBC.news: Space tourist blasts off to ISS, accessed last 11 March 2011
- NASA: EVA 1 - Spacewalkers Install New Camera Assembly, Jettison FPP
- NASA: EVA 2 - Crew Back in Station After Spacewalk
- Fries, Colin (25 June 2007). "Chronology of Wakeup Calls" (PDF). NASA. p. 73. Retrieved 13 August 2007. "STS-5, STS-41-G"