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jan 1, 1897 - The Yerkes Observatory, "Birthplace of astrophysics" is founded in 1897

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It was the world's largest refracting telescope at the time. Used by legends such as Edwin Hubble, Subrahmanyan Chandrasekhar, and Carl Sagan

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19 Jan 2020

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Date:

jan 1, 1897

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~ 129 years ago

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