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Early Inner Solar System Impactors: Physical Properties of Comet Nuclei and Dust Particles Revisited

Lasue, J.; Levasseur-Regourd, A. C.; Desvoivres, E.

During the epoch of early bombardment, terrestrial planets have been heavily impacted by cometary nuclei and cometary dust particles progressively injected in the interplanetary medium. Stardust and Deep Impact missions confirm that the nuclei are porous, loosely consolidated objects, with densities below 1,000 kg m^-3, and that they oft…