In 1929, Edwin Hubble published his findings. The redshifts from distant galaxies were proportional to their distance away from us. Theoretical cosmologists would pounce on them as evidence that the Universe must be expanding.

Podden och tillhörande omslagsbild på den här sidan tillhör PhysicsPodcast.com. Innehållet i podden är skapat av PhysicsPodcast.com och inte av, eller tillsammans med, Poddtoppen.