Across the Ozarks, many people noticed an unusual sight in the sky on Tuesday. A partial rainbow near the sun. The optical illusion is most commonly referred to as a sundog, or a mock sun. Sundogs ...

Sundogs in August? We usually associate sundogs with frigid winter weather, but sundogs are sometimes seen on a hot August day. Sundogs are caused by a layer of ice crystals between your eyes and the ...

Pilots flying over the Himalayas often see three suns at once, a stunning phenomenon called sundog. This natural light show is no cockpit trick or sci-fi scene, just perfect mountain weather meeting ...

Pilots flying over the towering Himalayas sometimes witness the extraordinary sight of three suns in the sky simultaneously. This phenomenon, known as a sundog or parhelion, is not caused by ...