View Full Version : JWST Sunscreen Offers SPF 1,000,000

2011-Mar-21, 10:20 PM
The James Webb Space Telescope will have a sunshield that is about the size of a tennis court, and mission managers say it will offer the best “SPF” (Sun Protection Factor) in the Universe. “Each of the five layers of the shield is less than half the thickness of a piece of paper,” said John [...]

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