Ask an astronomer and find out how the orbit of the earth and moon are different and that a lunar eclipse can only happen when their orbits match up. You'll also discover that a lunar eclipse is caused by the earth's shadow. Another...

A full lunar eclipse in just 40 seconds, impossible! This 40-second time-lapse video shows a full lunar eclipse from start to finish. Not the best of its kind (the video) but it will do in a pinch, especially if you're short on time.

Kids will ooo and awww over this quick time-lapse video showing a total lunar eclipse. From start to finish, they'll see the full moon darken under the earth's shadow, turn a rusty red, then regain it's brilliant white glow. A great clip...