Spectacular image of a double rainbow looks like a magic portal

The Earth Science Picture of the Day is featuring this spectacular photo of a double rainbow at the end of a stormy day. It was taken last April by Manolis Shamanos at sunset, in the island of Samos, Greece. It really looks like some kind of supernatural phenomenon. LeVar Burton explains how they form:

Reddened colors of the primary and secondary bows result from the increased path length of sunlight when the Sun is below the horizon. The brightened area of the sky beneath the primary rainbow occurs when sunlight undergoes a single reflection in raindrops. Note that despite the brightness of the sky near the horizon, the camera is facing opposite of the Sun.


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