![Two astronauts at the airlock on the shuttle with their helmet lights turned on.](https://science.nasa.gov/wp-content/uploads/2023/07/27625121154-ef6a698060-o.jpg?w=4096&format=jpeg)
STS-125 Mission Specialists Grunsfeld and Feustel during EVA5
Astronauts John Grunsfeld (left) and Andrew Feustel, both STS-125 mission specialists, participate in the mission's fifth and final session of extravehicular activity (EVA5) as work continues 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
TakenMay 18, 2009
Image CreditNASA
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