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Continuing Construction

Continuing Construction
Astronaut Dave Williams participated in the STS-118 mission's fourth and final session spacewalk, as construction and maintenance continued on the International Space Station. During spacewalk, Williams and astronaut Clay Anderson (out of frame) installed the External Wireless Instrumentation System antenna and completed other tasks.

Astronaut Dave Williams participated in the STS-118 mission’s fourth and final session spacewalk, as construction and maintenance continued on the International Space Station. During the 5-hour spacewalk, Williams and astronaut Clay Anderson (out of frame) installed the External Wireless Instrumentation System antenna, attached a stand for the shuttle’s robotic arm extension boom and retrieved the two Materials International Space Station Experiments (MISSE) to be brought back on the shuttle.Image credit: NASA