NASA

@NASA ↗

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Last Checked Feb. 3, 2022

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Tue Jan 04 16:58:22 +0000 2022

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NASA @NASA

Why is @NASAWebb's sunshield shaped like a kite? In short, it's exactly the shape & size it needs to be. The iconic profile lets the telescope tilt back and forth to observe more of the universe. Plus, it helps radiate heat from the sides. Take a look: https://t.co/YhpDZdWLb8 https://t.co/TjCXoFivq9 — PolitiTweet.org

Posted Jan. 4, 2022

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NASA @NASA

@JacksonBTT Splitting the sunshield into 5 layers allows heat to radiate out from between them, causing each successive layer to be cooler than the one below. The vacuum of space between each layer also acts as a great insulator. Learn more about the sunshield design: https://t.co/j1nRsAwHOL — PolitiTweet.org

Posted Jan. 4, 2022

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NASA @NASA

@nachtsmeer The layers, each as thin as a human hair, are made of Kapton, a tough, high-performance plastic. Every layer is coated with aluminum, & the sun-facing side of the two hottest layers also have a doped-silicon (or treated silicon) coating to reflect the sun's heat back into space. — PolitiTweet.org

Posted Jan. 4, 2022