Expedition 18

ISS Expedition 18
	Promotional poster
Mission type	ISS expedition
Expedition
Space station	International Space Station
Began	12 October 2008
Ended	8 April 2009
Arrived aboard	Soyuz TMA-13; Chamitoff: STS-124; Space Shuttle Discovery; Magnus: STS-126; Space Shuttle Endeavour; Wakata: STS-119; Space Shuttle Discovery
Departed aboard	Soyuz TMA-13; Chamitoff: STS-126; Space Shuttle Endeavour; Magnus: STS-119; Space Shuttle Discovery; Wakata: STS-127; Space Shuttle Endeavour
Crew
Crew size	3
Members	Michael Fincke; Yuri Lonchakov; Gregory Chamitoff* (October–November); Sandra Magnus (November–March); Koichi Wakata† (March–April); * – transferred from Expedition 17; † – transferred to Expedition 19
EVAs	2
EVA duration	10 hours, 27 minutes
	; Expedition 18 mission patch; ; (Left to right) Koichi Wakata, Michael Fincke, Sandra Magnus, Yuri Lonchakov, Gregory Chamitoff ISS expeditions ← Expedition 17 Expedition 19 →

Expedition 18 was the 18th permanent crew of the International Space Station (ISS). The first two crew members, Michael Fincke, and Yuri Lonchakov were launched on 12 October 2008, aboard Soyuz TMA-13. With them was astronaut Sandra Magnus, who joined the Expedition 18 crew after launching on STS-126 and remained until departing on STS-119 on 25 March 2009. She was replaced by JAXA astronaut Koichi Wakata, who arrived at the ISS on STS-119 on 17 March 2009. Gregory Chamitoff, who joined Expedition 18 after Expedition 17 left the station,^[1] ended his stay aboard ISS and returned to Earth with the STS-126 crew.

^ National Aeronautics and Space Administration (2008). "Expedition 18 Launch Preparations". NASA. Archived from the original on 10 October 2008. Retrieved 7 October 2008.

[nasaexp-1] National Aeronautics and Space Administration (2008). "Expedition 18 Launch Preparations". NASA. Archived from the original on 10 October 2008. Retrieved 7 October 2008.

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