November 23 - This Day in History by LuskT

Question 4

November 23, 1924: The New York Times runs a story about this astronomer's research on the "island universe" that was known at the time as the Andromeda Nebula. His later observation of Cepheid variable stars would settle the matter and rebrand the Andromeda Nebula as the Andromeda Galaxy.

Edwin Hubble

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