First Ever Image Of Fourth Order Rainbow

Image copyright to Michael Theusner

Double rainbows became an internet meme when a man placed a video of one on YouTube - complete with his hilariously exaggerated reaction, and sobbing voice, in the background.

Now a German sky photographer has gone not just one, but two, better: this photo reveals the first fourth-order rainbow ever reported - and only the second third-order rainbow to be photographed. It comes hot on the heels of the first ever photograph of a third-order rainbow - taken by another German sky photographer.
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http://www.newscientist.com/blogs/shortsharpscience/2011/10/third-and-fourth-order-rainbow.html