A look at the theory of dark matter – the undetectable mass thought to make up 96% of the universe, and dark energy – the unseen force that is expanding the universe. Physicists use the latest cutting-edge technology and conduct groundbreaking experiments in an attempt to discover more about these mysterious forces.
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History Channel, Louis C. Tarantion, Douglas J. Cohen, the universe, universe, documentary, free, watch, online, movie, film, video, top, doc, documentation, dark matter, dark energy, dark, matter, energy
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