In 1624, Galileo received permission from the Pope to write a book describing both Copernican and Ptolemaic ideas. The Pope informed Galileo that the book should not go against the scripture; the book should not side with Copernican views ( Galileo 639). In 1632, Dialogue Concerning the Two Chief World Systems-Ptolemaic and Copernican was published. The Pope decided that the book favored Copernicus' ideas. After a three month heresy trial, April 1632 to June 1632, Galileo received his sentence on June 21, 1632 (Galileo 639). He must denounce the views of Copernicus, and live under house arrest. An section from Galileo's statement of denial towards Copernican views is as follows:

...do swear that I have always believed, do now believe, and with God's aid shall believe hereafter all that which is taught and preached by the Holy Catholic and Apostolic Church. But because, after I had received a precept which was lawfully given to me that I must wholly forsake the false opinion that the sun is the center of the world and moves not, and that the earth is not the center of the world and moves, and that I might not hold, defend, or teach the said false doctrine in any manner. (Blitzer 104)

In 1634, Galileo published his Dialogue Concerning Two New Sciences. This work concentrated on motion and the structure of matter. In the arena of motion, Galileo's writings and observations influenced Isaac Newton in his design of the laws of gravity (Galileo 640). On January 8, 1642 Galileo died of a slow fever, but his work continued to inspire others. Blitzer, Charles. Ages of Kings. New York: Time Incorporated, 1969. "Galileo." The New Encyclopaedia Britannica. 1993 ed.