STS-125 MS3 Grunsfeld and MS5 Feustel during EVA5

S125-E-009967 (18 May 2009) --- Astronauts Andrew Feustel (center) and John Grunsfeld (mostly obscured, positioned on a foot restraint on the end of Atlantis? remote manipulator system), both STS-125 mission specialists, participate in the mission?s fifth and final session of extravehicular activity (EVA) as work continues to refurbish and upgrade the Hubble Space Telescope. During the seven-hour and two-minute spacewalk, Feustel and Grunsfeld installed a battery group replacement, removed and replaced a Fine Guidance Sensor and three thermal blankets (NOBL) protecting Hubble?s electronics. The Gulf of California provides the backdrop for the scene.