Ice cloud

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An ice cloud is a colloid of ice particles dispersed in air. The term has been used to refer to clouds of both water ice and carbon dioxide ice on Mars. [1] Such clouds can be sufficiently large and dense to cast shadows on the Martian surface.[1]


  1. ^ a b "ESA Portal - Ice clouds put Mars in the shade". European Space Agency. 16 January 2008. Retrieved 2009-12-20.