The world of atmospheric optics was just rocked by this photo, which provides the first-ever visual evidence of the illusive fourth-order rainbow. That's right, a quadruple rainbow.

In fact, there have only been five confirmed triple rainbows in the last 250 years.

If you're thinking, "But I only see two rainbows," you're not mistaken -- what makes this photo amazing is that the angle of the two visible rainbows prove them to be a third-order (tertiary) rainbow (left), and the fourth-order (quaternary) rainbow. Meaning on the other side of the sky, there's a primary and a secondary rainbow.

We can only hope this photo is being hidden from Double Rainbow Guy, as seeing it would surely result in his death by cranial combustion.

[via Yahoo!]