Excellent selection of amazing clouds (16 pictures)

In meteorology, a cloud is a visible mass of liquid droplets or frozen crystals made of water or various chemicals suspended in theatmosphere above the surface of a planetary body. These suspended particles are also known as aerosols and are studied in the cloud physics branch of meteorology.

Terrestrial cloud formation is the result of air in Earth’s atmosphere becoming saturated due to either or both of two processes; cooling of the air and adding water vapor. With sufficient saturation, precipitation will fall to the surface; an exception is virga, which evaporates before reaching the surface. [source]

Clouds we see every day, but even though it is so unusual that it can to attract our attention.