Sir Isaac Newton's most famous achievement in science was the Scientific Revolution, utilizing the advances made before him in mathematics, astronomy, and physics to derive a comprehensive understanding of the physical world. Johannes Kepler enunciated his laws of planetary motion in 1618. Galileo determined the laws of gravity and explored the laws of motion on earth. Newton first conclusively affirmed the laws of motion and linked them with Kepler's laws of planetary motion. Before Newton, no one had demonstrated conclusively that the movements of heavenly bodies were related to terrestrial physics. Galileo had suggested this, but was censored by the Church before he was able to do further work to prove his theories.