Crash Course Pods: The Universe cover image

Ep. 1: The First Fraction of a Second

Crash Course Pods: The Universe

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Unveiling the Big Bang Theory through Cosmic Observations

Exploring the hot and dense state of the universe at its inception 13.8 billion years ago, astronomers track the expansion by observing the movement of distant galaxies and the stretching of light, providing direct evidence of the universe's early conditions and evolution over time.

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