Ptolemaic theory
By default, the Copernican theory of planets (including Earth) orbiting the Sun was the only credible one remaining. The Church's belated removal of its 1633 condemnation of Galileo comes 376 years, 7 months and 26 days after the 1616 decree that attempted to intimidate and restrict the great scientist. Galileo's observations of the phases of Venus proved that it  orbited the Sun and lent support to (but did not prove) the  heliocentric model. Galileo saw the four … largest moons of Jupiter in orbit around the  planet, proving that the Ptolemaic system was not simpler-the  solar system was not geocentric (the planets and the sun did not  orbit around the earth). Galileo Galilei was the first astronomer to use a telescope to study the heavens. Galileo made a number of observations that finally helped convince people that the Sun-centered solar system model (the heliocentric model), as proposed by Copernicus, was correct. Galileo Galilei (1564-1642). Galileo was one of the greatest astronomers in the world. He changed the way we think about the universe. Galileo was the first person to use a telescope to look at the universe. He studied the sun, the planets, and the moon. As for Galileo's interest in disproving Aristotle's Theory about falling objects, years later he said that he had first thought about this during a hailstorm, when he notice that both large and small hailstones hit the ground at the same time. Galileo's observations of the phases of Venus proved that it orbited the Sun and lent support to (but did not prove) the heliocentric model. He certainly did not disprove the Bible itself, as the Bible does not support the system of Ptolemy. Answer Yes. Both Gallileo and Copernicus disproved the Bible's teachings that the Earth was the center of the Universe. Galileo Galilei was an Italian physicist and astronomer. He was born in Pisa on February 15, 1564. Galileo's father, Vincenzo Galilei, was a well-known musician. Vincenzo decided that his son should become a doctor. In 1581, Galileo was sent to the University of Pisa to study medicine. Instead, Galileo disproved the Ptolemaic theory, sanctioned for centuries by the Church, which held the Earth to be the central and principal object in the universe, about which all celestial objects orbited.
http://www.nytimes.com/1992/11/17/opinion/l-what-galileo-actually-proved-and-disproved-595492.html http://www.answers.com/Q/How_did_Galileo_disprove_Aristotle's_theory http://www.answers.com/Q/How_did_Galileo_disprove_Aristotle's_theory http://www.polaris.iastate.edu/EveningStar/Unit2/unit2_sub5.htm http://www.imahero.com/herohistory/galileo_herohistory.htm http://www.mcm.edu/academic/galileo/ars/arshtml/galileo1.html http://www.answers.com/Q/How_did_Galileo_disprove_the_Geocentric_theory_of_the_solar_system http://www.answers.com/Q/How_did_Galileo_disprove_Aristotle's_theory http://starchild.gsfc.nasa.gov/docs/StarChild/whos_who_level2/galileo.html http://www.nytimes.com/1992/11/17/opinion/l-what-galileo-actually-proved-and-disproved-595492.html
what theories did galileo disprove