Hubble’s Paradox –“Constant in Space, Not in Time”

Early Quasars


“While the Hubble Constant is constant everywhere in space at a given time, it is not constant in time.” explains Chris Fassnacht, professor of physics at UC Davis about the current crisis in cosmology, or “tension”, in understanding the rate of expansion of the universe —known as the “Hubble Constant”—since the Big Bang, a central part of the quest to discover the origins of the universe.