This phenomenon is known as a Mach band, or the Mach effect. It’s an optical illusion where the edge of a bright object next to a dark object appears even lighter, and vice versa.

"Water, water everywhere, and not a drop to drink!" Dan Smith shows how different temperatures on the horizon play tricks on ...

Well, you are not the only one because such optical illusions commonly take place when your brain wrongly interprets what your eyes see. This is not a worrying fact because such illusions occur for ...

A glory is "a colorful, circular optical phenomenon caused by water droplets scattering light," according to a July 2018 blog post on the NASA Earth Observatory website. Reedy didn't realize that ...

MANCHESTER, N.H. — A rare atmospheric optical phenomenon called a "glory" was caught on video during descent on a Manchester, New Hampshire-bound flight on Monday. "I flew back from Florida this ...