Wonders of the Sky are lessons inspired by M. Minnaert's "Light and Color in the Outdoors
." This well-known book describes the physics behind unusual atmospheric optical effects. The slides offer images of numerous phenomena related to earth's sky and atmosphere that are mostly visible to the unaided eye. In particular, the interaction of light from the sun, moon, and stars with earth's atmosphere is emphasized. Topics of The Sunset Sky include water reflection, distortions of the setting sun's disk, green flashes, crepuscular rays, volcanic sunset, earth's shadow at sunset, Belt of Venus, summit shadows, full moon, lunar phases, the moon illusion, blue moons, and rocket contrails.