In Columbia's cargo bay, astronaut John M. Grunsfeld (foreground), payload commander, signals to a crewmate inside the crew cabin. He had just raised his helmet visor's sun shield. Astronauts Grunsfeld and Richard M. Linnehan (out of frame), mission specialist, participating in the first of their STS-109 space walks to perform work on the Hubble Space Telescope (HST), went on to replace the giant telescope’s starboard solar array in a seven-hour space walk on March 4, 2002.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/144614754@N02">NASA Hubble Space Telescope</a>
Taken on 4 March 2002
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/nasahubble/27990756236/">Astronaut John M. Grunsfeld EVA</a>