Mind-Blowing Natural Phenomena: Sun Dogs
The natural phenomena commonly known as sun dogs has beguiled philosophical greats from Aristotle all the way to Descartes. It was the sun dog sighting, after all, that caused Descartes to take a break from his metaphysical studies and write his book on natural philosophy aptly called “The World”.
Like the fire rainbow, the sun dog consists of vertically-aligned ice crystals which, when the angle is right, create a horizontal refraction and halo-shaped figure around the sun.