S115-E-06105 (15 Sept. 2006) --- In the center of this panoramic scene of new hardware on the International Space Station, astronaut Heidemarie M. Stefanyshyn-Piper, mission specialist, participates in the final of three scheduled STS-115 space walks. Her partner on both of her two spacewalks this week is astronaut Joseph R. Tanner, out of frame.