But for the absence of gravity, astronaut Andrew Feustel, perched on the end of the remote manipulator system arm, would be a bit top heavy as he helps to install the Wide Field Camera 3 (WFC3) during a May 14, 2009, spacewalk to perform work on the Hubble Space Telescope. Out of frame is veteran astronaut John Grunsfeld, his spacewalking crewmate. The pair kicked off five back-to-back days of extravehicular activity for the STS-125 crew. Feustel and Grunsfeld later participated in two of the remaining four spacewalks.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/144614754@N02">NASA Hubble Space Telescope</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/nasahubble/28099215431/">STS-125 MS5 Feustel during EVA1</a>