The radical implication of this view was that the heavens and the earth, long regarded as separate and distinct spheres, were not so different after all, for the motion of a cannonball or the falling of an apple obeyed the same natural laws that governed the orbiting planets.
Sir Isaac Newton unified early modern astronomy and physics by formulating the law of motion, which really took over science until the 20th century. What he thought and discovered was the same natural law that govern the heavens and the earth, linking them like falling apples and orbiting planets.