Cosmology2026-08-052 minarXiv:2608.05296expressCosmic Light Changes PolarizationLight from the hottest stage of the universe has been traveling toward us for nearly 14 billion years. This is the cosmic microwave background — a faint glow filling the entire sky.Kohei Kamada·Tucker MantonFaraday effectHendrik LorentzMichael FaradayJames Clerk Maxwellpolarizationpolarimetrybig bangdark energy👍👎☆SimplePopularAdvanced