Edwin Powell Hubble https://en.wikipedia.org/wiki/Edwin_H... (November 20, 1889 – September 28, 1953) was an American astronomer.
He played a crucial role in establishing the fields of extragalactic astronomy and observational cosmology.
Hubble proved that many objects previously thought to be clouds of dust and gas and classified as "nebulae" were actually galaxies
beyond the Milky Way. He used the strong direct relationship between a classical Cepheid variable's luminosity and pulsation period
(discovered in 1908 by Henrietta Swan Leavitt) for scaling galactic and extragalactic distances.
Hubble's name is most widely recognized for the Hubble Space Telescope, which was named in his honor, with a model prominently displayed
in his hometown of Marshfield, Missouri.
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Picture Credits:
Source http://hdl.huntington.org/cdm/ref/col...
Author Johan Hagemeyer (1884-1962)
Music Credits:
Song: I am a man who will fight for your honor
Artist: Chris Zabriskie
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