Rare Natural Phenomenon Impresses Austrians (1 photo + 2 videos)
In Austria, they managed to film a subsun, a rare optical phenomenon that occurs when sunlight reflects off a cloud of snow crystals. The video is short but mesmerizing. 
A rare and beautiful optical phenomenon called a subsun was caught on camera in Austria. It occurs directly under the sun, and the spot of light itself is the result of sunlight reflecting off ice crystals in the air.
Another example, filmed a few years ago in Argentina
