Spacewalking astronauts Sunita Williams (left) and Akihiko Hoshide (right) work outside the INternational Space Station near the outpost's robotic arm on Sept. 5, 2012.
Space station astronauts Sunita Williams, left, and Akihiko Hoshide, right, performed a spacewalk on Sept. 5, 2012.
NASA astronaut Sunita Williams (left) helps Japanese astronaut Akihiko Hoshide (right) prepare the space station's robotic arm during their spacewalk on Sept. 5, 2012.
Spacewalkers Sunita Williams (left) and Akihiko Hoshide (right) work near the International Space Station's solar arrays on Sept. 5, 2012.
Japanese astronaut Akihiko Hoshide rides on the International Space Station's robotic arm (right), as NASA astronaut Sunita Williams (bottom left) works on the station's truss.
Spacewalker Akihiko Hoshide rides the International Space Station's robotic arm to a work site on the space station's backbone-like truss during a spacewalk on Sept. 5, 2012.
Japanese astronaut Akihiko Hoshide on the end of the space station's robotic arm holds a power box steady as NASA astronaut Sunita Williams works below. Hoshide and Williams completed a roughly 6.5-hour spacewalk on Sept. 5, 2012.
A view from the helmet of Japanese astronaut Akihiko Hoshide as he drives a bolt into a replacement power unit during a spacewalk on Sept. 5, 2012.
Japanese astronaut Akihiko Hoshide works near the International Space Station's Canadarm 2 robotic arm during a spacewalk on Sept. 5, 2012.
NASA astronaut Sunita Williams appears to touch the bright sun during Expedition 32's third spacewalk on Sept. 5, 2012. Williams and Japanese astronaut Akihiko Hoshide (visible in the reflection of Williams' helmet visor) fixed a key power unit on the exterior of the orbiting outpost during the 6 1/2-hour outing.
NASA astronaut Joe Acaba (center), Japanese spaceflyer Akihiko Hoshide (left) and NASA astronaut Sunita Williams (right) prepare for the start of a spacewalk on Sept. 5, 2012. Acaba, Hoshide and Williams are pictured inside the International Space Station's Quest airlock.
Anchored to the International Space Station's robotic arm, Japanese astronaut Akihiko Hoshide, participates in a spacewalk on Sept. 5, 2012. During the six-hour, 28-minute spacewalk, Hoshide and NASA astronaut Sunita Williams (out of frame) completed the installation of a replacement power unit.
Japanese astronaut Akihiko Hoshide is pictured during a spacewalk on Sept. 5, 2012. During the six-hour, 28-minute spacewalk, Hoshide and NASA astronaut Sunita Williams (out of frame) fixed a critical station power unit and installed a camera on the outpost's robotic arm.
Japanese spaceflyer Akihiko Hoshide works on the exterior of the International Space Station during a spacewalk on Sept. 5, 2012. A cloud-covered part of Earth is visible in the background.
Japanese astronaut Akihiko Hoshide uses a digital still camera to expose a photo of his helmet visor during a spacewalk on Sept. 5, 2012. The bright sun is visible at left. During the six-hour, 28-minute spacewalk, Hoshide and NASA astronaut Sunita Williams (visible in the reflections of Hoshide's helmet visor) fixed part of the International Space Station's power system and installed a camera on the outpost's robotic arm.
