EVA 22

ISS036-E-016526 (9 July 2013) --- NASA astronaut Chris Cassidy, Expedition 36 flight engineer, exits the Quest airlock for a session of extravehicular activity (EVA) as work continues on the International Space Station. During the six-hour, seven-minute spacewalk, Cassidy and European Space Agency astronaut Luca Parmitano (out of frame), flight engineer, prepared the space station for a new Russian module and performed additional installations on the station’s backbone.