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dec 30, 1924 - Edwin Hubble

Description:

L'astronome américain Edwin Hubble découvre la première galaxie nouvelle en dehors de la nôtre. Il annonce que la nébuleuse spirale Andromède est en fait une galaxie et que la Voie Lactée n’est que l’une des nombreuses galaxies de l’univers.

Added to timeline:

Sommatif 5.1

ByAmira
20 Dec 2018
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519

Date:

dec 30, 1924
Now
~ 101 years ago

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