Cosmic Dust

Cosmic Dust


Between 100 and 300 tons of cosmic dust enter the Earth's atmosphere every day.


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Estimates vary of how much cosmic dust and meteorites enter Earth's 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 haven't been any real coordinated efforts to find out. But a new project proposal called Cosmic Dust in the Terrestrial Atmosphere (CODITA) would provide more accurate estimates of how much material hits Earth, as well as how it might affect the atmosphere.


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