Kenneth Libbrecht is a physicist that studies snowflakes and takes pictures of them with a photomicroscope. The results are stunning! Here is a gallery that displays nine of them.
Snowflakes, The Art of the Snowflake: A Photographic Album, and The Little Book of Snowflakes are a few of his books filled with this beautiful photography, and probably a fact or two about snowflakes.
We're getting more of the lovely crystals tonight.