Asteroid Belts & Planet Rings
Why there is an asteroid belt between Mars and Jupiter, and not a planet? In 1596, Johannes Kepler predicted, “Between Mars and Jupiter, I place a planet” in his book, Mysterium Cosmographicum. Later, the astronomer Johann Daniel Titius of Wittenberg declared in a footnote, “But should the Lord Architect have left that space empty? Not at all”. This conjecture was...