Astronaut Jeffrey Williams will serve as a flight engineer for Expedition 21 and commander of Expedition 22. He previously resided on the space station for six months in 2006 as a member of the Expedition 13 crew.
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Cosmonaut Maxim Suraev will serve as a flight engineer for Expeditions 21 and 22. He was selected as a test-cosmonaut candidate of the Gagarin Cosmonaut Training Center Cosmonaut Office in December 1997.
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Cosmonaut Oleg Kotov will serve as an Expedition 22 flight engineer and Expedition 23 commander. In 2007 Kotov served a six-month tour of duty aboard the International Space Station as an Expedition 15 flight engineer.
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Japan Aerospace Exploration Agency astronaut Soichi Noguchi will fly to the station aboard the Soyuz TMA-17 spacecraft to serve as a flight engineer for Expeditions 22 and 23. Previously, he flew on STS-114 Discovery in 2005 and participated in three spacewalks.
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NASA astronaut T.J. Creamer will fly to the International Space Station aboard the Soyuz TMA-17 spacecraft to serve as a flight engineer for Expeditions 22 and 23. This is his first spaceflight.
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Astronaut Jeff Williams, aboard the International Space Station 220 miles above Earth, is taking your questions. Post a video response with your question at ReelNASA on YouTube. Williams' schedule will not allow him to answer many questions, but he will attempt to answer a few each week.
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Visit the Expedition 22/23 photo gallery.