NASA | WMAP--From the Archives

The video explores the early universe, focusing on the era when the first stars formed, approximately 200 million years after the Big Bang. It discusses how light serves as a fossil remnant, allowing us to study the universe's past. The video also explains the cosmic map, highlighting the hot and cold spots as the afterglow of the Big Bang. Finally, it covers the determination of the universe's age at 13.7 billion years with remarkable accuracy, emphasizing the simplicity and consistency of the cosmological model.

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