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JWST Sunshield (a)

JWST Sunshield (a) (thumbnail)
Title: JWST Sunshield (a)
Format: JPEG
Dimensions: 305 (w) x 261 (h)
File Size: 28.42 KB
Source: Northrop Grumman Corp.
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The James Webb Space Telescope will be pointed so that the Sun, Earth and Moon are always on one side, and the sunshield will act like a parasol, keeping the optics and science instruments cool by keeping them in the shade and protecting them from the heat of the sun and warm spacecraft electronics. The sunshield will allow the telescope to cool down to a temperature below 50 Kelvin (equal to -370 degree F, or -223 degree C) by passively radiating its heat into space.

News Release:

Photo Release -- Sunshield for NASA's James Webb Space Telescope Ready for Manufacturing (Issued on 2013-09-19 at 10:00 Eastern)

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JWST Sunshield (b)
JWST Sunshield (b)