Hubble helps design the Hale Telescope on Mount Palomar in California (20 ч 38 мин, 1 янв 1941 г. – 17 ч 5 мин, 1 янв 1948 г.)
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Helps design the Hale Telescope on Mount Palomar in California
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big history project timeline
Henrietta Leavitt, and Edwin Hubble.
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