Such a large mirror - the MS would approve

Mirror Inspection

Technicians and scientists check out one of the Webb telescope's first two flight mirrors on Sept. 19, 2012 in the clean room at NASA's Goddard Space Flight Center in Greenbelt, Md.

The mirrors are going through receiving and inspection and will then be stored in the Goddard clean room until engineers are ready to assemble them onto the telescope's backplane structRead More...