A biography of Johannes Kepler, the astronomer and mathematician who formulated the three laws of planetary motion.

To the naked eye, the most evident defining feature of the planets is their motion across the night sky. It was this motion that allowed ancient civilizations t

Thousands of years ago, people looked at the sky in wonder, fascinated by the motions of a few wandering stars. Nobody understood where these wandering objects-

Our modern understanding of the heliocentric universe developed five hundred years ago. Since the time of Copernicus and Galileo, scientists have made major str

Examines how the discoveries of Johannes Kepler changed the way scientists viewed the field of astronomy and how the planets moved about the solar system.