https://physbang.com/2026/04/26/red-shift-and-the-age-of-the-universe/Mr Tarrant's physbang 'blogen2026-04-26T12:49:56+00:00Red-Shift and the Age of the UniverseBig Bang, cosmology, Edwin Hubble, Georges Lemaître, expansion of the Universe, Hubble's law, Hubble constant, Doppler effect, galactic red-shift, recessional velocity, Milton Humason, vesto slipher, The Realm of the Nebulae, expansion of space, high-z galaxies, Big Crunch, Big Freeze, Saul Perlmutter, Brian Schmidt, Big Rip, dark energy