May 18 2009
From The Space Library
Astronauts John M. Grunsfeld and Andrew J. Feustel undertook the fifth and final spacewalk of the HST servicing mission. They successfully renewed the telescope’s batteries, which provide power when the solar panels are not receiving light; replaced a fine-guidance sensor; and fitted three thermal blankets to protect the craft’s electronics. The spacewalk was Feustel’s third and Grunsfeld’s eighth—with 58 hours and 30 minutes of spacewalking time, Grunsfeld became the world’s fourth most experienced spacewalker during the HST servicing mission.
BBC News, “Fifth Spacewalk Energises Hubble,” 19 May 2009; Tariq Malik, “Astronauts Give Hubble Telescope One Last Hug,” Space.com, 18 May 2009, http://www.space.com/6714-astronauts-give-hubble-telescope-hug.html (accessed 19 July 2011).
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