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Scientists are celebrating a major development in the study of how the universe grew, after finding evidence of gravitational waves that came shortly after the Big Bang

Scientists are celebrating a major development in the study of how the universe grew, after finding evidence of gravitational waves that came shortly after the Big Bang. Don Dahler reports on how this discovery could give researchers a new tool with which to explore the universe.
Mar 17, 2014 (01:47)
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