NASA Administrator Michael Griffin (right) and Associate Administrator for Space Operations William Gerstenmaier inspect Space Shuttle Discovery after the landing and conclusion of mission STS-121 on July 17,2006. The crew delivered supplies and a third crewmember to the International Space Station and continued evaluation of new procedures.
NASA Administrator Michael Griffin (right) and Associate Administrator for Space Operations William Gerstenmaier inspect Space Shuttle Discovery after the landing and conclusion of mission STS-121 on July 17,2006. The STS-121 crew delivered supplies and a third crewmember to the International Space Station and continued evaluation of new safety procedures.Image credit: NASA/Bill Ingalls