This NASA web site provides a short review of the Big Bang Theory.

Visit a timeline for the life of the universe and discover more about the Big Bang and the development of the universe, our solar system, and life.

Stephen Hawking’s Universe provides information on changing ideas about the formation and other aspects of our universe, including the Big Bang.

Find out more about the mission of the spacecraft COBE (Cosmic Background Explorer). Watch a film of its liftoff and read about how it has contributed to our understanding of the formation of the universe.