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jan 1, 1923 - Hubble 1923

Description:

In the U.S.A. in 1923, Hubble was able to show that other galaxies exist outside of the Milky Way.

Added to timeline:

History of Astronomy Timeline

ByGABRIEL XIONG

26 Nov 2019

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Date:

jan 1, 1923

Now

~ 102 years ago

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