Gregory Chamitoff

Gregory Errol Chamitoff is a Canadian-born American engineer and former NASA astronaut. He has been to space twice, spending 6 months aboard the ISS across Expedition 17 and 18 in 2008, and another 15 days as part of STS-134 in 2011. STS-134 was the last flight of Space Shuttle Endeavour which delivered the Alpha Magnetic Spectrometer and completed the US Orbital Segment.

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