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The Oldest Map | The Cosmic Microwave Background

The Cosmic Microwave Background [CMB] is the oldest light in the universe that we can see or detect. It was emitted only 380,000 years after the universe was born, back when it was a much less peaceful place.

The microwave-band static is fundamentally linked to the Big Bang, and if we map it precisely enough, we can discover a wealth of information about the age, composition and structure of the universe. 

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