Moving Mysteries and Wandering Stars
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Everything in the universe is, one way or another, in a constant state of motion, some things more obviously so than others. Thus, while we would need to wait many lifetimes to see the familiar patterns of the constellations alter as their constituent stars followed their stately cosmic dance, the motions of nearby objects such as the Moon and planets can easily be monitored over a number of days or weeks. Comets and asteroids likewise glide in front of distant stars at a comparatively swift pace, and meteors simply flash past our eyes.