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Thread: Getting a Handle on How Much Cosmic Dust Hits Earth

  1. #1
    Join Date
    Jul 2003
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    23,239

    Getting a Handle on How Much Cosmic Dust Hits Earth

    Does Earth have a dust build-up problem? Estimates vary of how much cosmic dust and meteorites enter Earthís atmosphere each day, but range anywhere from 5 to 300 metric tons, with estimates made from satellite data and extrapolations of meteorite falls. Thing is, no one really knows for sure and so far there hasnít been [...]

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  2. #2
    Join Date
    Feb 2005
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    8,271
    Like sweeping the ocean back with a broom.

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