History of Cloud in Timeline

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Cloud

In meteorology, a cloud is a visible mass of liquid droplets, ice crystals, or particles suspended in a planetary atmosphere. Primarily composed of water, clouds on Earth form when air becomes saturated, either by cooling to its dew point or by gaining enough moisture to raise the dew point to the ambient temperature.

December 2013: Detection of clouds in exoplanet atmospheres

In December 2013, atmospheric clouds were detected in the exoplanets GJ 436 b and GJ 1214 b.