Friday, October 30, 2026
Science

Cosmic microwave background offers evidence of gas flowing in galaxy clusters

The cosmic microwave background (CMB) is a faint glow in the universe dating back to roughly 380,000 years after the Big Bang, long before stars or galaxies emerged. Detecting this light and mapping its fluctuations provide valuable insights into the age and composition of the universe.

Cosmic microwave background offers evidence of gas flowing in galaxy clusters
Image: Phys.org
The cosmic microwave background (CMB) is a faint glow in the universe dating back to roughly 380,000 years after the Big Bang, long before stars or galaxies emerged. Detecting this light and mapping its fluctuations provide valuable insights into the age and composition of the universe.

Originally published at Phys.org

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