A primary mirror segment (black hexagonal shape) from the James Webb Space Telescope was mounted on a grey/silver robotic arm at NASA Goddard Space Flight Center.
A primary mirror segment (black hexagonal shape) from the James Webb Space Telescope was mounted on a grey/silver robotic arm at NASA Goddard Space Flight Center. The arm will install the mirror onto the Telescope Structure. For related feature: https://www.nasa.gov/topics/technology/features/webb-mirror-practice.html Credit: NASA/Chris Gunn