Berkeley Lab Physicist Shares Nobel

Meet one of the three winners of the 2011 Nobel Prize in Physics, Lawrence Berkeley Lab astrophysicist Saul Perlmutter. He explains how dark energy, which makes up 70 percent of the universe, is causing our universe to expand.

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  • Susan

    How come it was all about Perlmutter? He was only one of three scientists, and the names of the other two were not even mentioned. Shame on you, NewsHour!