fluffy aggregate model

cometary nuclei

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In comet: Cometary nuclei
…that cometary nuclei are “fluffy aggregates,” first proposed by American astronomer Bertram Donn and British astronomer David Hughes in 1982, or “primordial rubble piles,” proposed by American astronomer Paul Weissman (the author of this article) in 1986, with low binding strength and high porosity. Key data supporting these models…
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