Gelileo Galilei is a italian scientist who supported the heocentric theory. He live from 1564 to 1642. He used astronomy. Galileo had many accomplishments, one of his accomplishments was to build the best telescope. His other accomplishment was to prove copernicus' theory. He also published a book called dialouge of the tides that explained his theory. At fist the church didnt mind him than they told him to say that he was lying and his punishment was to be under house arrest.

Tycho Brahe was a Danish nobleman known for his accurate and comprehensive astrology who lived from 1546 to 1601. He used astrology. His two major accomplishments were to discover that comets go in a elleotical path and that the stars exploded to create a supernova. He published a book called De nova stella. He was punished by getting baned from denmark.