Edwin Powell Hubble1941
Edwin Hubble and Nicholas U. Mayall publish a report on the direction of rotation of spiral nebulae, using observed spiral structure and kinematic evidence to investigate galaxy rotation.
United States of America · Science / Astronomy. Chronological records rendered directly from the World History Database.
Edwin Hubble and Nicholas U. Mayall publish a report on the direction of rotation of spiral nebulae, using observed spiral structure and kinematic evidence to investigate galaxy rotation.
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