Snowflakes — those intricate, one-of-a-kind ice crystals — form when precipitation falls through varying levels of humidity and temperatures in the air. While plenty has been written about the science of snow, we're focusing on the sheer beauty of them. Here are 18 to study and admire.

Snowflake

Photo: Andreas/Flickr

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Snowflake

Photo: N!(K/Flickr

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Snowflake

Photo: Eric Begin/Flickr

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Snowflake

Photo: Nedral/Flickr

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Snowflake

Photo: Gui Sez/Flickr

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Snowflake

Photo: Juliancolton2/Flickr

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Snowflake

Photo: ~ezs/Flickr

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Snowflake

Photo: mommamia/Flickr

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Snowflake

Photo: JimmyMac210/Flickr

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Snowflake

Photo: netsanette/Flickr

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Snowflake

Photo: ImageLink/Flickr

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Snowflake

Photo: ViaMoi/Flickr

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Snowflake on a woman's eyelashes

Photo: The Monstrous/Flickr

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Snowflake

Photo: Thomas Marthinsen/Flickr

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Snowflake

Photo: CaptPiper/Flickr

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Snowflake

Photo: musubk/Flickr

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Snowflake

Photo: margot.trudell/Flickr

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Snowflake

Photo: RachelEllen/Flickr

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