Copernicus and the trial of Galileo

Copernicus was a astronomer who made heliocentric theory.it was the theory that the sun was the center of the solar system. This theory opposed the geocentric theory, in which the earth is the center of the universe.
Galileo had proved the geocentric theory false by using his knowledge of math and science.then he was put on trial for that by the church.in the trial he took back what he said about the geocentric theory being false.