English: NASA astronaut John "Danny" Olivas, STS-128 mission specialist, participates in the mission's third and final session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. Visible in the reflections of his helmet visor are various components of the station, Earth's horizon and European Space Agency astronaut Christer Fuglesang, mission specialist. During the seven-hour, one-minute spacewalk, Olivas and Fuglesang deployed the Payload Attachment System (PAS), replaced the Rate Gyro Assembly #2, installed two GPS antennae and did some work to prepare for the installation of Node 3 next year. During connection of one of two sets of avionics cables for Node 3, one of the connectors could not be mated. This cable and connector were wrapped in a protective sleeve and safed. All other cables were mated successfully.