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Five fast facts about the James Webb Space Telescope sunshield

The sunshield has five layers, reducing heat by 573°F from front to back.

It's as large as a tennis court, measuring 21 m by 14 m.

Each layer is thinner than a human hair, with Layer 1 at just 0.05 mm.

The sunshield must always face the Sun to keep the telescope in permanent shadow.

Folding complexity required 107 release devices for deployment after launch.