Perhaps the oldest of all of the sciences is astronomy. And little won der, considering that the sun governs our days upon the earth; the moon rules our nights. The heavens are filled with a starry multitude that dances across the night sky from hour to hour and season to season. Thus, ancient humanity could hardly have escaped pondering the objects in the sky that so dominated life on the earth. One of the greatest puzzles that early astronomers sought to explain was the movement of the...