Photos: 'Sun dogs' light up the sky

Reuters | Reuters: Lucas Jackson
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New Jersey

The halo around the sun is caused by the refraction of sunlight by small ice crystal in the atmosphere. But we like to think there's something a bit more magical happening. See gallery

Here, a bird flies underneath an atmospheric phenomenon known as a "sun dog" in the sky over Seaside Heights, New Jersey, on May 14, 2013. Click through the gallery for more photos of sun dogs.

Reuters: Lucas Jackson
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New Jersey

Here, a man takes a photograph of a sun dog in Seaside Heights, New Jersey, on May 14, 2013. It's not clear how these icy circles got their name; some believe it's derived from Norse mythology.

Reuters: Eric Miller
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Minnesota

A sun dog appears as the sun rises in southern Minnesota on Jan. 27, 2014.

Reuters: Eric Miller
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Minnesota

A sun dog  appears over a farm in southern Minnesota on Jan. 27, 2014.

Reuters: Desmond Boylan
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Havanna, Cuba

This sun dog was spotted in Havana, Cuba, on April 12, 2013.

Reuters: Desmond Boylan
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Havanna, Cuba

A woman walks on a street with her umbrella as a a sun dog is seen in the sky over Havana, Cuba, on April 12, 2013.

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