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Megadunes and Hoar Frost: 6 Facts About Snow

Here are six fun facts about snow, from the idea that no two snowflakes are alike to the bizarre megadunes that blanket Antarctica.

February 11, 2013
6:00 AM EST
Kenneth Libbrecht, a professor of physics at California Institute of Technology, photographs snowflakes in the field and in his lab. Studio-type lighting, even outdoors, brings out angles, texture and color that are otherwise hard to spot. | Kenneth Libbrecht, Caltech
This photo of penitentes, ice formations formed in high-altitude regions, was taken in December 2005 along the Chajnantor plain in Chile. | ESO
Kenneth Libbrecht, a professor of physics at California Institute of Technology, photographs snowflakes in the field and in his lab. Studio-type lighting, even outdoors, brings out angles, texture and color that are otherwise hard to spot. | Kenneth Libbrecht, Caltech

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