The James Webb Space Telescope's Sunshield Membrane

A full-scale JWST sunshield membrane deployed on the membrane test fixture at Mantech, Hunstville, ready for a precise measurement of its three dimensional shape. The JWST sunshield comprises five of these layers, each of which has to be precisely spaced with respect to the next.

 

Credit: Northrop Grumman Aerospace Systems

 

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