At the beginning of the century, discoveries about the hidden workings of the everyday world suggest all is not as it seems. Quantum theory, relativity, nuclear power, and clues about the birth and death of the universe have rocked our deepest beliefs. "Mysteries of the Universe" journeys from the subatomic world of the atom to the farthest reaches of space and time, and into the laboratories of the men and women whose work has forever altered physics and astronomy. Includes telescopes, pulsars, the size of the universe, astrophysics, black holes, atoms, quarks, super colliders, unified field and string theories, and more. This five-part, ten-hour series explores the sweeping changes that have revolutionized life and thinking in the twentieth century.