Abstract
THE Smithsonian meteoritic dust programme has included a number of aerosol collections made by various aircraft in different altitude ranges. These include collections in the range 40,000–48,000 ft. by a B-52; roughly 60,000 ft. by a U-2; and 51,000–87,000 ft. by an F-104A. The purpose of these collections was to obtain samples of meteoritic material, both so that we could estimate the rate of accretion by the Earth of extraterrestrial matter and analyse it chemically.
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WRIGHT, F., HODGE, P. Space Density of Dust in the Stratosphere. Nature 195, 269 (1962). https://doi.org/10.1038/195269a0
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DOI: https://doi.org/10.1038/195269a0
