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| S118-E-09844 (13 Aug. 2007) --- While anchored to the foot restraint on the Canadarm2, astronaut Dave Williams, STS-118 mission specialist representing the Canadian Space Agency, participates in the mission's second planned session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the 6-hour, 28-minute spacewalk, Williams and astronaut Rick Mastracchio (out of frame), mission specialist, removed a faulty control moment gyroscope (CMG-3) and installed a new CMG into the station's Z1 truss. The failed CMG will remain at its temporary stowage location on the station's exterior until it is returned to Earth on a later shuttle mission. The new gyroscope is one of four CMGs that are used to control the station's attitude in orbit. | ||||
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| S118-E-07456 (13 Aug. 2007) --- Astronaut Clay Anderson, Expedition 15 flight engineer, works with the Minus Eighty Degree Laboratory Freezer for ISS (MELFI) in the Destiny laboratory of the International Space Station while Space Shuttle Endeavour (STS-118) remains docked with the station. | ||||
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| S118-E-07484 (13 Aug. 2007) --- Astronaut Rick Mastracchio, STS-118 mission specialist, prepares to exit the Quest Airlock of the International Space Station for the mission's second session of extravehicular activity (EVA) as construction and maintenance continue on the station. | ||||
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| S118-E-07492 (13 Aug. 2007) Astronaut Charlie Hobaugh, STS-118 pilot, at the controls for Canadarm2 in the Destiny module on the International Space Station. | ||||
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| S118-E-07463 (13 Aug. 2007) --- Astronaut Dave Williams, STS-118 mission specialist representing the Canadian Space Agency, gets assistance from astronaut Tracy Caldwell (out of frame) as he prepares for extravehicular activity to work on the International Space Station. This will mark the second spacewalk for the Endeavour crew and the second for Williams in three days. He will again be joined by astronaut Rick Mastracchio for the EVA. | ||||
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| ISS015-E-22854 (13 Aug. 2007) --- Astronauts Barbara R. Morgan, STS-118 mission specialist, and Charlie Hobaugh, pilot, work on the middeck of Space Shuttle Endeavour while docked with the International Space Station. | ||||
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| S118-E-07052 (13 Aug. 2007) --- Astronaut Rick Mastracchio, STS-118 mission specialist, smiles for a photo near the galley on the middeck of Space Shuttle Endeavour while docked with the International Space Station. A flour tortilla floats freely near Mastracchio. | ||||
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| ISS015-E-22323 (13 Aug. 2007) --- Backdropped by the blackness of space and Earth's horizon, Space Shuttle Endeavour's orbital maneuvering system (OMS) pods and vertical stabilizer are featured in this image photographed by a crewmember while docked with the International Space Station during STS-118 flight day six activities. | ||||
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| ISS015-E-22355 (13 Aug. 2007) --- Astronaut Dave Williams, STS-118 mission specialist representing the Canadian Space Agency, participates in the mission's second planned session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the 6-hour, 28-minute spacewalk Williams and astronaut Rick Mastracchio (out of frame), mission specialist, removed a faulty control moment gyroscope (CMG-3) and installed a new CMG into the station's Z1 truss. The failed CMG will remain at its temporary stowage location on the station's exterior until it is returned to Earth on a later shuttle mission. The new gyroscope is one of four CMGs that are used to control the station's attitude in orbit. | ||||
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| ISS015-E-22358 (13 Aug. 2007) --- Astronaut Dave Williams, STS-118 mission specialist representing the Canadian Space Agency, participates in the mission's second planned session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the 6-hour, 28-minute spacewalk Williams and astronaut Rick Mastracchio (out of frame), mission specialist, removed a faulty control moment gyroscope (CMG-3) and installed a new CMG into the station's Z1 truss. The failed CMG will remain at its temporary stowage location on the station's exterior until it is returned to Earth on a later shuttle mission. The new gyroscope is one of four CMGs that are used to control the station's attitude in orbit. | ||||