Edwin Hubble (1889-1953) was a renowned astronomer who made significant contributions to the field of observational cosmology. He is best known for demonstrating that the universe is expanding and for establishing the existence of other galaxies beyond our Milky Way. The Hubble Space Telescope, launched into space in 1990, has revolutionized our understanding of the universe and continues to provide us with remarkable images and data about distant celestial objects.
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