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June 7, 2011
These two payload specialists are in training for the STS-90 Neurolab mission. They are Jay C. Buckey Jr., left, and James A. (Jim) Pawelczyk. Alternates Chiaki Mukai and Alexander W. Dunlap are just out of view on each side of the two prime crew members. Buckey and Pawelczyk will fly aboard the Space Shuttle Columbia, while Mukai and Dunlap will provide ground support. The four were about to participate in emergency egress training in the systems integration facility at the Johnson Space Center (JSC).

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