Video: World News

Physicists seek animated answers to dark secrets of the universe (2:09) 

Nov. 29 - Physicists at the Argonne National Laboratory in Illinois hope to unravel the mysteries of dark matter and dark energy with the most detailed computer simulations of the universe ever built. The two theoretical forces have never been detected but are believed to make up more than 95 percent of the universe The researchers want to know what the forces are and how they work. Ben Gruber reports. ( Transcript )

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