Astronaut Richard M. Linnehan, mission specialist, works on the Hubble Space Telescope (HST) in the cargo bay of the Space Shuttle Columbia during the STS-109 mission's third space walk. The primary purpose of the extravehicular activity (EVA) of astronauts Linnehan and John M. Grunsfeld was to replace the Power Control Unit on the giant telescope.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/144614754@N02">NASA Hubble Space Telescope</a>
Taken on 6 March 2002
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/nasahubble/27990755126/">Astronaut Richard M. Linnehan EVA</a>