Quantcast
Last updated on April 16, 2014 at 0:16 EDT
JSC2006-E-22024
258 of 420

JSC2006-E-22024

August 17, 2011
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.