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WIREDfrom WIRED

Weird, Rare Clouds and the Physics Behind Them

UFO clouds...lenticular clouds created by gravity waves.

Cloud spiral in the sky. An Iridescent (Rainbow) Cloud in Himalaya. The phenomenon was observed early am October 18, 2009.

Inspired Magazinefrom Inspired Magazine

20+ Amazing Nature Photography That Will “Wow’ You

nature

Amazingly beautiful natural phenomenon can be observed when the sun rises high in the sky. The rays of the sun when it passes through high-altitude clouds composed of ice crystals in the form of hexagons. The sunlight is refracted in these crystals in bizarre way, and as a result, we see “fire rainbow”. This phenomenon is not local, it can extend over several hundred square miles

A rare cloud formation called a mammatus, where clouds take on a  bubble-like shape, appeared in the skies above Regina, Saskatchewan in Canada following a thunderstorm on June 26.

A rare cloud formation called a mammatus, where clouds take on a bubble-like shape, appeared in the skies above Regina, Saskatchewan in Canada following a thunderstorm on June 26 [2012 ?], Photo courtesy of Preston Smoke/