If so, you probably saw a sun dog, also known as mock sun or parhelia, which means "with the sun." These optical illusions are created by the refraction of sunlight through ice crystals in the ...

Sundogs are created when sunlight is refracted by large, hexagonal ice crystals, ... NASA explains bizarre 'smashed sundog' phenomenon . It may have blasted off in 2010, ...

If so, you probably saw a sun dog, also known as parhelia or mock sun. advertisement. CBS Chicago. ... These optical illusions are created by the refraction of sunlight through ice crystals in the ...

Optical illusions that can be seen flanking the sun, sundogs are a beautiful and fascinating sight. But how do they form and when is the best time to see them?

GREELEY, Colorado (KFOR/Storyful) — What can appear to be a giant, colorful eyeball in the sky is actually called a sundog.Jennifer Finch captured the video showing a brilliant sundog in Greeley ...