STS-125 MS3 Grunsfeld and MS5 Feustel during EVA5

STS-125 Mission Specialist 3 (MS3) John Grunsfeld, positioned on a foot restraint on the end of Atlantis' Remote Manipulator System (RMS), and MS5 Andrew Feustel participate in the mission's fifth and final session of extravehicular activity (EVA5) as work continued to refurbish and upgrade the Hubble Space Telescope. During the seven-hour and two-minute spacewalk, Grunsfeld and Feustel installed a replacement battery module, removed and replaced a Fine Guidance Sensor, and installed three thermal blankets (NOBLs) that protect Hubble's electronics.

Credits: NASA