Origins reveals the human being within the scientist in a study of the philosophical, personal, and social factors that enter into the scientific process. Twenty-seven active cosmologists--including Stephen Hawking, Roger Penrose, Steven Weinberg, Vera Rubin, Allan Sandage, Margaret Geller, and Alan Guth--talk candidly about their childhoods and early influences, their motivations, prejudices, and worldviews. The book's lucid introduction traces the explosion of new ideas that has recently shaken cosmological thinking. Origins explores not just the origin of the universe but also the origins of scientific thought.