Kordylewski cloud
Any of the dust clouds found at the Trojan points, the L4 and L5 Lagrange points, in the Earth-Moon system, and of any other such system
present participle of plow ahead
A province of Afghanistan.
A type of low brush or scrub found around the Mediterranean especially in Greece
天文学者たちは月周回探査機を使って、地球・月系のトロイ点（L4およびL5のラグランジュ点）にある塵の雲を調査し、その粒子がどのように太陽光を散乱するかを測定した。
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