Cosmic dust found in city rooftop gutters

(Phys.org)—A small team of researchers with Imperial College London, the Natural History Museum in London, Project Stardust in Norway and Université Libre de Bruxelles in Belgium, has found samples of cosmic dust in the gutters of buildings in three major cities. In their paper published in the journal Geology, the team describes how they found the samples, what they look like and what they may reveal about the origins of the solar system.

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