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Expedition 12

ISS Expedition 12
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 (2005-10-03UTC05:27Z) UTC
Ended 8 April 2006, 19:28 (2006-04-08UTC19:29Z) UTC
Arrived aboard Soyuz TMA-7
Departed aboard Soyuz TMA-7
Crew
Crew size 2
Members William S. McArthur
Valery Ivanovich Tokarev
EVAs 2
EVA duration 11 hours, 5 minutes

ISS Expedition 12 patch.svg ISS Expedition 12 crew.jpg
William S. McArthur, Jr. (United States left), Valery I. Tokarev (Russia right)


ISS expeditions
← Expedition 11 Expedition 13

ISS Expedition 12 patch.svg ISS Expedition 12 crew.jpg
William S. McArthur, Jr. (United States left), Valery 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.

Station assembly preparations, maintenance and science in microgravity.

There were two spacewalks outside the ISS during Expedition 12. MacArthur and Tokarev participated in both of them.

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.


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