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STS-121 Shuttle Mission Imagery
John Chapman with small model of an external tank
high res (1.8 M) low res (56 K)
JSC2006-E-22024 (8 June 2006) --- John Chapman, external tank project manager, uses a small model of an external tank to address hardware improvements during one of a battery of STS-121 pre-flight press briefings at the Johnson Space Center.

Curator: Kim Dismukes | Responsible NASA Official: John Ira Petty | Updated: 07/12/2006
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