Edwin Powell Hubble1922
Hubble publishes an extensive investigation of the source of luminosity in galactic nebulae, examining the relationship between nebular brightness and nearby illuminating stars.
United States of America · Science / Astronomy. Chronological records rendered directly from the World History Database.
Hubble publishes an extensive investigation of the source of luminosity in galactic nebulae, examining the relationship between nebular brightness and nearby illuminating stars.
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