Big Bang's Ripples: Two Scientists Recall Their Big Discovery

May 20, 2014 9:33 PM

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Big Bang's Ripples: Two Scientists Recall Their Big Discovery

hide captionIn 2009, the European Space Agency launched the Planck satellite, which offers the best map yet of the microwave sky. Planck indicates that ordinary matter (the stuff of stars and planets) is only about 5 percent of the Universe.

On May 20, 1964, two astronomers working at a New Jersey laboratory turned a, giant microwave antenna toward what they thought would be a quiet part of the Milky Way. They weren't searching for anything: They were trying to make adjustments to their instrument before looking at more interesting thin...

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