Stock Photo - Attired in training versions of the shuttle launch and entry garment, astronauts Mark Polansky (left) and Robert L. Curbeam take a break from a simulation exercise in the motion-base shuttle mission simulator (seen in the background) at the Johnson Space Center (JSC). Polansky is STS-98 pilot and Curbeam doubles as a mission specialist and flight engineer for the scheduled January 2000 5a mission to the International Space Station (ISS).

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