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Discovery Education presents: "How the Universe Works". Scientists discuss how the universe formed according to the big bang theory. Looking beyond our galaxy and into deep space, astronomers and physicists seek answers to questions about the beginning and end of our universe. Chronicling the formation of the universe, the program explains how energy converted to matter to create all that we see around us today. Theoretical physicists and cosmologists reveal how our understanding of the universe has changed during the twentieth century through modern technology and scientific study.