Rainbow vs. Tornado
A very cool picture... and it's not photoshopped. It was taken by Eric Nguyen in Kansas in 2004, and was featured as the Astronomy Picture of the Day
on June 13, 2005. APOD explains: "Last June in Kansas, storm chaser Eric Nguyen photographed this budding twister in a different light -- the light of a rainbow. Pictured above, a white tornado cloud descends from a dark storm cloud. The Sun, peeking through a clear patch of sky to the left, illuminates some buildings in the foreground. Sunlight reflects off raindrops to form a rainbow. By coincidence, the tornado appears to end right over the rainbow."
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