Astronauts conduct the first spacewalk of mission STS-126

Astronauts conduct the first spacewalk of mission STS-126

Astronauts Heidemarie Stefanyshyn-Piper (R) and Steve Bowen (L) are assisted out of their Extravehicular Mobility Unit (EMU) spacesuits by Astronauts Chris Ferguson (foreground, center) and Greg Chamitoff after completing the first session of session of extravehicular activity (EVA). (UPI Photo/NASA)