Galileo and Copernican Theory. This paper discusses how Galileo made an important contribution to the Copernican theory. His profound contribution and decisive arguments to those who legitimately sought to discredit the Ptolemaic theory. 5 pgs. 9 f/c. 3b. Pages: 5 Bibliography: 3 source(s) listed Filename: 2455 Galileo Copernican Theory.doc Price: 44.75