Edwin Powell Hubble1922
Hubble publishes studies of diffuse galactic nebulae, establishing the association between many such nebulae and the stars responsible for their illumination.
United States of America · Science / Astronomy. Chronological records rendered directly from the World History Database.
Hubble publishes studies of diffuse galactic nebulae, establishing the association between many such nebulae and the stars responsible for their illumination.
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