Cosmology2026-06-013 minarXiv:2606.02097Light Leaks into Darkness: How Photons Become Dark MatterCosmology is experiencing a tectonic rift. Cepheid-calibrated supernovae, measured by Adam Riess’s team, point to a rate of about 73 km/s per megaparsec.Tae-Kyoung LeeCompton effectgravitational lensingArthur ComptonAdam RiessAlan Guthredshiftdark matterdark energyexpansion of the universequintessence👍👎☆SimplePopularAdvanced