Recent Examples of micrometeoroid from the Web
Currently, very little data exists that describe what effect temperature extremes, lunar dust, micrometeoroids, solar radiation, etc.
What works in Webb's favor is the micro part of micrometeoroid: even at high speed, the particles don't have the mass to do catastrophic damage.
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Learn More about micrometeoroid
Britannica.com: Encyclopedia article about micrometeoroid
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