Today in History | Edwin Hubble Announces Existence of Other Galaxies (1925)

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Edwin Hubble worked as a basketball coach and teacher, served in World War I, and studied law before focusing his energies on astronomy. On January 1, 1925, he made a groundbreaking announcement, declaring that fuzzy "nebulae" seen earlier with less powerful telescopes were not part of our galaxy but were actually galaxies themselves. With the findings now known as Hubble's law, he was also the first to provide evidence to support what theory about the universe?

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