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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 gen 1922 anni - Ernst Opik demonstrates the Andromeda nebulae is outside the Milky Way (1922)
Aggiunto al nastro di tempo:
Science
By
Stewart
4 ago 2017
0
0
1021
Data:
1 gen 1922 anni
Adesso
~ 103 years ago
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