William Oefelein Lisa NASA

Oefelein served as pilot for the STS-116 mission aboard Space Shuttle Discovery from December 9 to 22, 2006. The seven-member crew on this 12-day mission continued construction of the International Space Station by adding the P5 spacer truss segment during the first of four spacewalks. The next two spacewalks rewired the station’s power system, preparing it to support the addition of European and Japanese science modules by future Shuttle crews. The fourth spacewalk was added to allow the crew to coax and retract a stubborn solar panel to fold up accordion-style into its box. Discovery also delivered a new crew member and more than two tons of equipment and supplies to the station. Almost two tons of items no longer needed on the station returned to Earth with STS-116.

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