Secrets of the Cosmic Microwave Background

The video explores the cosmic microwave background (CMB), a remnant from the early universe, and its significance in understanding the universe's composition. It covers the formation and discovery of the CMB, baryon acoustic oscillations, and the analysis of density fluctuations. The power spectrum and its peaks reveal insights into the universe's structure, including the proportions of dark matter, dark energy, and baryons. The CMB's analysis confirms the universe's flatness and provides a standard ruler for cosmic measurements.

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