He proved the theory by stating that he saw four moons orbiting Jupiter, which proves that the not everything is orbiting 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's support for the heliocentric theory (note that this is Copernicus's theory, not Galileo's) got him into trouble with the Roman Catholic Church. In 1633 the Inquisiti … on convicted him of heresy and forced him to recant (publicly withdraw) his support of Copernicus. He was an Italian scientist of the 17th century. He did not prove  the heliocentric theory. But everyone accepts the heliocentric  principle now, after it was proved right; … but that happened long  after Galileo's time, after new scientific discoveries in the  latter half of the 1600s. Geoff Canyon. He did not prove  the heliocentric theory. But everyone accepts the heliocentric  principle now, after it was proved right; … but that happened long  after Galileo's time, after new scientific discoveries in the  latter half of the 1600s. He was an Italian scientist of the 17th century. He did not prove  the heliocentric theory. But everyone accepts the heliocentric  principle now, after it was proved right; … but that happened long  after Galileo's time, after new scientific discoveries in the  latter half of the 1600s. Geoff Canyon. Using the new technology of the telescope, Galileo discovered the moons of Jupiter: Io, Europa, Calisto, and Ganymede, thus proving that not all things orbit around the Earth, lending great support to the Copernican model of the heliocentric system. He was an Italian scientist of the 17th century. He did not prove  the heliocentric theory. But everyone accepts the heliocentric  principle now, after it was proved right; … but that happened long  after Galileo's time, after new scientific discoveries in the  latter half of the 1600s. Geoff Canyon. Diagram of the Copernican system, from De Revolutions. [click for larger image]. But in the first book, Copernicus stated that the Sun was the center of the universe and that the Earth had a triple motion [1] around this center. The Copernican system simply did not fit into the Aristotelian way of thinking. It took a century and a half for a new physics to be devised to undegird heliocentric astronomy. The works in physics and astronomy of Galileo and Johannes Kepler were crucial steps on this road. There was another problem. Copernicus's theory of 1543 places the Sun at the centre instead.  It explains some of the things that the Ptolemaic theory fails to  explain, like the full range of Venus's phases that Galielo  discovered. Galileo reasoned that this must prove that Copernicus's  theory is right.    However Galileo was wrong about this because Tycho Brahe's model  explains the phases of Venus correctly yet still has the Earth at  the centre. Copernicus was dead so he didn't help him, but he helped prove his theory of heliocentrism. His telescope observations helped to prove the theory that everything revolves arou … nd the sun, instead of the geocentric idea that everything revolved around the Earth. From his observations, Copernicus concluded that every planet, including Earth, revolved around the Sun. He also determined that the Earth rotates daily on its axis and that the Earth's motion affected what people saw in the heavens. Copernicus did not have the tools to prove his theories. By the 1600s, astronomers such as Galileo would develop the physics that would prove he was correct. Copernicus died on May 24, 1543.  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. Copernicus was dead so he didn't help him, but he helped prove his theory of heliocentrism. His telescope observations helped to prove the theory that everything revolves arou … nd the sun, instead of the geocentric idea that everything revolved around the Earth. Galileo's support for the heliocentric theory (note that this is Copernicus's theory, not Galileo's) got him into trouble with the Roman Catholic Church. In 1633 the Inquisiti … on convicted him of heresy and forced him to recant (publicly withdraw) his support of Copernicus. Copernicus was dead so he didn't help him, but he helped prove his theory of heliocentrism. His telescope observations helped to prove the theory that everything revolves arou … nd the sun, instead of the geocentric idea that everything revolved around the Earth. Galileo Galilei. for, and proved Copernicus’ theory. He proved the theory by stating that he saw four moons orbiting Jupiter, which proves that the not everything is orbiting around the Earth, which was the first proof. hen Copernicus’ theory was first presented to the world, only a few astronomers took interest into it, but a famous Italian scientist, Galileo Galilei, became devoted to
http://www.polaris.iastate.edu/EveningStar/Unit2/unit2_sub5.htm http://www.answers.com/Q/What_did_Galileo_prove_about_Copernicus'_theory http://www.answers.com/Q/What_did_Galileo_prove_about_Copernicus'_theory http://www.answers.com/Q/What_did_Galileo_prove_about_Copernicus'_theory http://galileo.rice.edu/sci/theories/copernican_system.html http://www.answers.com/Q/How_did_Galileo_help_prove_that_Copernicus'_theory_about_the_solar_system_was_right http://starchild.gsfc.nasa.gov/docs/StarChild/whos_who_level2/copernicus.html http://www.answers.com/Q/How_did_Galileo_help_prove_that_Copernicus'_theory_about_the_solar_system_was_right http://www.answers.com/Q/How_did_Galileo_help_prove_that_Copernicus'_theory_about_the_solar_system_was_right http://blogs.yis.ac.jp/14shimomuram/nicolaus-copernicus/connection-between-galileo-and-copernicus/
how did galileo prove copernicus theory