Expedition 22 was the twenty-second long duration crew flight to the International Space Station (ISS). This expedition began on 1 December 2009 when the Expedition 21 crew departed. For a period of three weeks, there were only two crew members; it was the first time that had occurred since STS-114. Commander Jeff Williams and flight engineer Maksim Surayev were joined by the rest of their crew on 22 December 2009, making the Expedition 22 a crew of five.^[1]

The expedition had ended when Soyuz TMA-16 undocked on 18 March 2010, and was immediately followed by the start of Expedition 23.

Position	First Part (1 – 22 December 2009)	Second Part (22 December 2009 – 18 March 2010)
Commander	Jeffrey N. Williams, NASA Third spaceflight
Flight Engineer 1	Maksim Surayev, RSA First spaceflight
Flight Engineer 2		Oleg Kotov, RSA Second spaceflight
Flight Engineer 3		Soichi Noguchi, JAXA Second spaceflight
Flight Engineer 4		Timothy Creamer, NASA Only spaceflight

^[2]

• Shannon Walker – Commander
• Aleksandr Skvortsov
• Douglas H. Wheelock
• Anton Shkaplerov
• Satoshi Furukawa

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  Kotov, Creamer and Noguchi.
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  The Soyuz TMA-17 spacecraft is rolled out by train to the launch pad at the Baikonur Cosmodrome, Kazakhstan.
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  The Soyuz TMA-17 rocket lifts off headed for the ISS on Expedition 22.
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  Kotov used a digital still camera to take this self-portrait during a January 2010 space-walk.
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  The Expedition 22 crew landed on Thursday, 18 March 2010.

• 2010 in spaceflight
• List of human spaceflights
• List of International Space Station spacewalks
• List of spacewalks 2000–2014

 This article incorporates public domain material from websites or documents of the National Aeronautics and Space Administration.

• NASA's Space Station Expeditions page
• Expedition 22 Photography