Johannes Kepler Biography 

The man discovered the Planetary Motion. German Astronomer, Mathematician, Scientist, Writer. Life and work of German astronomer Johannes Kepler, famous for his three laws of planetary...

5 Greatest Scientists in History

These Men of Science Changed Scientific Understanding and the World. No bigger impact can be felt by these men who created or changed the scientific world....

Kepler and the Star of Bethlehem

Kepler’s Explanation of the Three Wise Men’s Guide to Jesus Christ German astronomer and mathematician Johannes Kepler came up with a planetary conjecture of planets...

Understanding Kepler’s Third Law

Planetary Motion, Orbital Period, Distance from Sun, and Mass Kepler’s third law of planetary motion is a mathematical relation between orbital periods and distances. It...

Understanding Kepler’s Second Law

Planetary Motion, Changing Speeds, Equal Areas, and the Cosmos Kepler’s second law of planetary motion, expressed in terms of equal areas and equal times, means...

Understanding Kepler’s First Law

Planetary Motion, Elliptical Orbits, & Understanding the Cosmos Kepler’s first law of planetary motion radically changed our views of the cosmos by saying that planets...