Across the Ozarks, many people noticed an unusual sight in the sky on Tuesday. A partial rainbow near the sun. The optical ...

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

Across the Ozarks, many people noticed an unusual sight in the sky on Tuesday. A partial rainbow near the sun ... go from red (closest to the sun) to blue on the outside of the sundog.