He obtained approval by the Pope, who was related to Galileo, to write about Ptolemy and Copernicus and their ideas about the universe. Galileo was not authorized to write a report about either principle, because at the time it was believed that no man should be able to judge how the world is made, yet in 1632, Galileo introduced his new book to the world, supporting the theory of Copernicus- that the Earth revolves around the Sun. When the Pope discovered this, he was outraged and ordered a prosecution. The church was afraid to accept his discovery because it would prove that humans are not the central focus and might not be that important in the whole scheme of things. He was forced to say that he no longer held the opinions of his book, because he did not want to return to a dungeon. However, his license to write was taken, and Galileo was under house arrest. There Galileo wrote another book, and discovered numerous other things before he perished in 1642 at the age of