The Science Behind Wonders of the Sky: Auroras, Moonbows, and St. Elmo's Fire

There are many amazing sights to be seen in the sky. In the daytime there may be unusual cloud formations, rainbows and moonbows. At night you might see a comet, meteorites, or the Aurora Borealis. The Science Behind Wonders in the Sky looks at some of these phenomena, explaining how and why they occur.