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This topic has appeared in the English Wikipedia rankings 1 time. It first appeared on 2026-05-06 and was most recently seen on 2026-05-06.
The Kordylewski clouds, sometimes called the lunar libration clouds, are concentrations of dust that exist at the L4 and L5 Lagrange points of the Earth–Moon system. They were first reported by Polish astronomer Kazimierz Kordylewski in 1961, who observed the clouds from the Tatra Mountains in what was then Czechoslovakia. Dust particles in the clouds likely come from the interplanetary dust cloud as they are temporarily trapped in the lunar Lagrange points. Dust particles remain for decades, forming large, rapidly-evolving bands within the clouds. Eventually, perturbations from the Sun lead to their escape back into interplanetary space.
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