Dec 5, 2008
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I love keeping my eye on the sky; now that winter is here ice crystals in the air abound, providing all sorts of lovely refractive and diffractive and
interference effects. It's one of the best shows on Earth... or above it, and it's free. All you have to do it look up.
One of the Hive Overmind brains sent me a link to a very cool gallery of pictures of the sky on Discover Magazine's website. There are arcs, halos, aurorae, and mirages, all displayed for you in a very pretty way.