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50 pictures of the natural world that will blow your mind

By Kaitlyn Farley of Mediafeed | Slide 2 of 52: Sun dogs, or mock suns, are a meteorological phenomenon known as parhelion. It creates an optical illusion of another sun on one or both sides of the actual sun. They’re not actually all that rare, either, especially in weather conditions like a polar vortex. That means you just might see a sun dog someday soon, if you haven’t already.

Slide 2 of 52: Sun dogs, or mock suns, are a meteorological phenomenon known as parhelion. It creates an optical illusion of another sun on one or both sides of the actual sun. They’re not actually all that rare, either, especially in weather conditions like a polar vortex. That means you just might see a sun dog someday soon, if you haven’t already.

1. Sun dogs

Sun dogs, or mock suns, are a meteorological phenomenon known as parhelion. It creates an optical illusion of another sun on one or both sides of the actual sun. They’re not actually all that rare, either, especially in weather conditions like a polar vortex. That means you just might see a sun dog someday soon, if you haven’t already.

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