The Earliest Light in the Universe: What the Cosmic Microwave Background Reveals w/ Brian Cox
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The Earliest Light in the Universe: What the Cosmic Microwave Background Reveals w/ Brian Cox
The cosmic microwave background radiation is the oldest light in the universe — released just 380,000 years after the Big Bang. Over 13.8 billion years, the universe’s expansion stretched it into microwaves we can detect today. But before that, the cosmos was too hot and dense for light to move at all. New gravitational wave technology ...
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