The circumhorizon arc or 'rainbow clouds. This 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.
We have rounded up some ridiculously cool natural phenomena that you may not have known about. I love how many people do not understand clouds or atmosphere and believe in "chem trails", instead of burning jetfuel & evaporation