(Music)
Engineers building The James Webb Space Telescope
recently deployed the revolutionary sunshield.
The sunshield consists of five layers of a polymer
material called KAPTON.
The critical sunshield keeps telescope instruments in deep shadow
and deep cold, approximately
394 degrees Fahrenheit below zero.
Next for Webb: comprehensive
electrical tests and one more set of mechanical tests
to emulate launch vibration.
EXPLORE: Solar system and beyond.
NASA