Saturn's Harrowing Hurricane Even More Terrifying in Technicolor
From Kotaku - Click on link to read the full article.
"Cassini shot the picture with special spectral filters that can detect the subtleties of wavelengths of near-infrared light. NASA then false-colored the vortex based on those tiny changes, invisible to the human eye. The result is this stunner, where the deep reds represent lower clouds, and the greens are ones that sit a bit higher."