Stardust Technology: Aerogel
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Scan day: 18 February 2014 UTC
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Description: Describes the material's use in a space probe capturing samples of comet material and interstellar dust.
More photos of aerogel are available in our For additional technical information about aerogel see, The primary objective of the Stardust mission is to capture both cometary samples and interstellar dust. Main challenges to accomplishing this successfully involve slowing down the particles from their high velocity with minimal heating or other effects that would cause their physical alteration. When the Stardust Spacecraft encounters the Comet Wild 2, the impact velocity of the particles will be up to 6 times the speed of a rifle bullet. Although the captured particles will each be smaller than a grain of sand, high-speed capture could alter their shape and chemical composition - or even vaporize them entirely.
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