Imagine looking up on your daily commute and catching this crazy visual trickery in the sky! Yesterday, Youtube user melkiy582 captured a massive halo of light was seen around the sun on the horizon in Moscow—a cool atmospheric phenomenon known by an even cooler name: Sundog.

The scientific title for the pair of bright spots flanking the sun is parhelion—it occurs mostly in the wintertime when viewed through cirrus clouds made up of falling ice crystals.


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