A cloud is a visible mass of droplets or frozen crystals suspended in the atmosphere above the surface of the Earth or another planetary body. A cloud is also a visible mass attracted by gravity, such as masses of material in space called interstellar clouds and nebulae. Clouds are studied in the nephology or cloud physics branch of meteorology.
Mulhouse (French: Mulhouse, pronounced: [myluz]; Alsatian: Milhüsa or Milhüse, [mɪlˈyːzə]; German: Mülhausen; i.e. mill houses) is a city and commune in eastern France, close to the Swiss and German borders. With 271,000 inhabitants in the metropolitan area in 2007 it is the largest city in the Haut-Rhin department, and the second largest in the Alsace region after Strasbourg. Its designated local development area consists of 16 communes, but its metropolitan area is substantially larger than that.