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23 oct 1968 año - In 1965, Radio astronomers Arno Penzias and Robert Wilson discovered Cosmic Microwave Background radiation at the temperature of -454.765 degree Fahrenheit, or 2.725 degree Kelvin. This provided evidence that the big bang caused extreme heat that is still mesurable.

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Timeline for Big Bang

ByAmelia Brohier
17 may 2019
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23 oct 1968 año
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~ 56 years ago
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