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      • To protect the telescope from external sources of light and heat (like the Sun, Earth, and Moon) as well as from heat emitted by the observatory itself, Webb's 5-layer, tennis court-sized sunshield reduces the temperature between the hot and cold side of the spacecraft by approximately 570 ° Fahrenheit (299 ° Celsius) across its 5 layers.
      science.nasa.gov/mission/webb/webbs-sunshield/

      About Webb's Sunshield - Science@NASA

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  3. science.nasa.gov › mission › webbAbout Webb's Sunshield - Science@NASA

    To protect the telescope from external sources of light and heat (like the Sun, Earth, and Moon) as well as from heat emitted by the observatory itself, Webb's 5-layer, tennis court-sized sunshield reduces the temperature between the hot and cold side of the spacecraft by approximately 570° Fahrenheit (299° Celsius) across its 5 layers. The ...

  4. www.nasa.gov › universe › the-complex-materialThe Complex Material Engineering of NASA's Webb Telescope ...

    Jun 23, 2016 · The shiny silver material of the five-layer sunshield that will fly aboard NASA’s James Webb Space Telescope is a complex and innovative feat of material.

  5. en.wikipedia.org › wiki › James_Webb_Space_TelescopeJames Webb Space Telescope sunshield - Wikipedia

    The James Webb Space Telescope (JWST) sunshield is a passive thermal control system deployed post-launch to shield the telescope and instrumentation from the light and heat of the Sun, Earth, and Moon.

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  7. science.nasa.gov › mission › webbFact Sheet - NASA Science

    Dec 25, 2021 · Webb has a 5-layer sunshield that protects the telescope from the infrared radiation of the Sun, Earth, and Moon; like having sun protection of SPF 1 million.

    • Ariane 5 ECA
    • 5-10 years

  8. www.bbc.com › news › science-environment-59873738James Webb Space Telescope: Sun shield is fully deployed

    Jan 4, 2022 · The new James Webb telescope has passed a major milestone in its quest to image the first stars to shine in the cosmos. Controllers on Tuesday completed the deployment of the space observatory's...

    • Does Webb Telescope have a sunshield?1
    • Does Webb Telescope have a sunshield?2
    • Does Webb Telescope have a sunshield?3
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    • Does Webb Telescope have a sunshield?5

  9. www.nasa.gov › news-release › sunshield-successfullySunshield Successfully Deploys on NASA’s Next Flagship Telescope

    Jan 4, 2022 · The five-layer, tennis court-sized sunshield is essential for protecting the telescope from heat, allowing Webb’s instruments to cool down to the extremely low temperatures necessary to carry out its science goals.

  10. science.nasa.gov › mission › webbJames Webb Space Telescope - NASA Science

    Webb has a 5-layer sunshield that protects the telescope from the infrared radiation of the Sun, Earth, and Moon; like having sun protection of SPF 1 million.

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