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Cosmic microwave background offers evidence of gas flowing in galaxy clusters
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.
phys.org/news/2026-10-cosmic-microwave-background-evidence-gas.html