Edwin Hubble’s Discovery of the Accelerating Expansion of the Universe

universe-accelerating-expansion

Edwin Hubble was able to work out not only how far a star or galaxy was from Earth, but also the speed at which it was moving away from Earth, a finding which was profound because in a stable universe, stars and galaxies should move away or towards something at random values, however Hubble determined that the further away a star or galaxy, the faster it moves away, which proved that the universe is expanding

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