Astronaut Megan McArthur, STS-125 mission specialist, works the controls of Space Shuttle Atlantis' remote manipulator system (RMS) robotic arm on the aft flight deck during Flight Day 3.
<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/27561531183/">McArthur Working on the Shuttle Atlantis Flight Deck during HST Rendezvous/Berthing</a>