Here, Mars is at the peak of its opposition (the time when Earth and Mars are closest together in their orbits.) It shines brightly over a rare lunar fogbow. Unlike the more common rainbow, which is made when sunlight is reflected prismatically through falling rain, here the moonlight is reflected by the small water droplets that create the fog. This image was taken above a volcano in Hawaii, USA.
Okay, everybody together now: “Ooooooooooohhhhhhhhhh”