5 ч 45 мин, 1 янв 1929 г. - Hubble using the work of Vesto Slipher, Hubble and Milton Humason identify Hubble’s Law, proving that the Universe is expanding
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Using the work of Vesto Slipher, Hubble and Milton Humason identify Hubble’s Law, proving that the Universe is expanding
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big history project timeline
Henrietta Leavitt, and Edwin Hubble.
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