https://physbang.com/2026/07/28/hubble-tension-part-1-the-distance-ladder/Mr Tarrant's physbang 'blogen2026-07-28T10:21:01+00:00Hubble Tension Part 1: The Distance LadderCMB, parsec, Edwin Hubble, Georges Lemaître, expansion of the Universe, Hubble constant, recessional velocity, Milton Humason, vesto slipher, Hubble tension, Distance ladder, Parallax distances, Cepheid variables, Type-Ia supernova, Baryon Acoustic Oscillations, Cosmic Microwave Background, BAO