Ice cloud

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]

Cirrus and noctilucent clouds on Earth contain ice particles.[2]

  1. ^ a b "ESA Portal - Ice clouds put Mars in the shade". European Space Agency. 16 January 2008. Retrieved 2009-12-20.
  2. ^ Tom Freeman (December 8, 2009). "New satellite to measure ice cloud particles could provide valuable new climate data". Retrieved 2009-12-20.