In exclusive interviews, Stephen Hawking, NASA leaders, and Nobel Prize-winning astronomers talk about how their discoveries have affected life's big questions. Topics include the creation and fine-tuning of the universe, the purpose of life, and the nature of God. The humor and multimedia format make this title especially appealing. t make this title especially appealing. t make this title especially appealing. t make this title especially appealing. t make this title especially appealing.