Cinematic 8K 7680×4320 30p. If you desire, you can grab the any 4K or HD crop part you wish. In meteorology, a cloud is an aerosol comprising a visible mass of minute liquid droplets, frozen crystals, or particles suspended in the atmosphere above the surface of a planetary body. The droplets may be made of water or various chemicals. Clouds air cooled moisture vapor dew point to the ambient temperature earth homosphere which includes troposphere stratosphere mesosphere cloudy overcast clouded skyless mixed variable weather sky sunny dark black clean white blue.