astronomer believed in the Harmonices Mundi, or the Harmonies of the World. In his Harmonices Mundi he spoke of his third law, which was about the relationship between the orbital periods and the distances of the planets from the sun. He believed the sun regulates the velocity of the planets. This fact was a marking point in Astronomy history. This left a path for Newton’s theory of universal gravitation.
Galileo Galilei was a student at the University of Pisa. He studied
