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28 November, 07:36

This is a small body formed during accretion and composed mostly of of silicates and metals internally and ice on the external surface.

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  1. 28 November, 08:30
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    Planetesimal

    Explanation

    Planetesimal has its roots from the meaning of infinitesimal which means an object is too small to see or measure.

    A planetesimal is an object which is formed from dust, rock and other materials. It is a small body formed during accretion and composed mostly of of silicates and metals internally and ice on the external surface.

    Planetesimals can be anywhere in size ranging from several meters to hundreds of kilometers.
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