<p>Inside a massive clean room at NASA's Goddard Space Flight Center in Greenbelt, Maryland the James Webb Space Telescope team is steadily installing the largest space telescope mirror ever. Unlike other space telescope mirrors, this one must be pieced together from segments using a high-precision robotic arm. 
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Credit: NASA/Goddard/Chris Gunn
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<bdi><a href="https://www.wikidata.org/wiki/Q110278636" class="extiw" title="d:Q110278636"><span title="American photographer">Chris Gunn</span></a>
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/gsfc/24544051132/">NASA Webb Telescope Mirrors Installed with Robotic Arm Precision</a>