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Title: Beautiful double red rainbow Written by: duddy on Jun 24, 2014 (https://biology-forums.com/gallery/47/4_24_06_14_3_11_38.jpeg) (https://biology-forums.com/index.php?action=gallery;sa=view;id=17156) This double red rainbow was photographed over a Greek sunset by Manolis Thravalos. The optical phenomena is a result of Rayleigh scattering, which is the scattering of light by tiny particles in the atmosphere. This scattering is what causes the Sun to appear yellow and the sky to appear blue, and also results in red sunsets where the atmosphere is thicker around the horizon. |