A rainbow is an optical and meteorological phenomenon that causes a spectrum of light that appear in the sky when the sun shines on droplets of moisture in the atmosphere. It takes the form of a multicolored arc.
The beauty of rainbow always triggers people's fantasy. In many different culture, the end of the rainbow leads to the fairyland, a treasure land as well as the heaven. What is your fantasy of rainbow?
It has been suggested that rainbows might exist on Saturn's moon Titan!
Here we bring you the best collection of 66 rainbow wallpapers.
Keywords: Rainbow, double rainbow, 彩虹, light refraction, reflection, Supernumerary rainbow, Monochrome rainbow, rainbow spectrum, Circumhorizontal arc.
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