With the publication of his "Dialogue" which promoted the Copernican heliocentric view that the sun, not the earth, was the center of the universe, Galileo Galilei brought himself into sharp conflict with the medieval Catholic Church. This Discov ery Channel video introduces viewers to Galileo’s work and the controversy it engendered. Producer Adrian Malone, narrator Donald Sutherland. Brief study guide available. Closed captioned.