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John Williams
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Physicists have found a long-predicted twist in light from the Big Bang that represents the first image of ripples in the universe called gravitational waves. The finding is direct proof of the theory of inflation, the idea that the universe expanded extremely quickly in the first fraction of a second after it was born.

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Physicists have found a long-predicted twist in light from the Big Bang that represents the first image of ripples in the universe called gravitational waves. The finding is direct proof of the theory of inflation, the idea that the universe expanded extremely quickly in the first fraction of a second after it was born.

http://www.scientificamerican.com/article/gravity-waves-cmb-b-mode-polarization/
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