Contact: Lynn Chandler
NASA/Goddard Space Flight Center
Caption: Ball Aerospace Technician Robin Russell inspects the Webb Telescope Aft Optics Subsystem during mirror integration activities. The Aft Optics bench, made of lightweight beryllium like the mirrors, holds Webb's tertiary and fine steering mirrors. The installed, gold-coated tertiary mirror can be seen in the background.
Credit: Ball Aerospace.
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Related news release: NASA's Webb telescope team completes optical milestone