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Edwin Hubble lived from 1889-1953. He showed that the Andromeda spiral was not part of the Milky Way galaxy. By showing this he proved that there are more galaxies in existance.
Edwin Powell Hubble was born on November 20 1889, and he died on September 28, 1953. Edwin Powell Hubble was an American Astronomer who changed the understanding of the universe by confirming the existence of galaxies. He also discovered that the degree of "Doppler shift" observed in the light spectra from other galaxies increased in proportion to a particular galaxy's distance from Earth. This relationship became known as Hubble's Law, and helped establish that the universe is expanding. Hubble has sometimes been incorrectly credited with discovering the Doppler shift in the spectra of galaxies, but this had already been observed earlier by Vesto Slipher, whose data Hubble used.
He was probably the one who invented the Hubble telescope

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