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Their nature wasn’t confirmed until the 20th century. Wikipedia tackles the history: https://en.wikipedia.org/wiki/Andromeda_Galaxy https://en.wikipedia.org/wik
by macintux 2y ago
Their nature wasn’t confirmed until the 20th century. Wikipedia tackles the history: https://en.wikipedia.org/wiki/Andromeda_Galaxy https://en.wikipedia.org/wiki/Andromeda_Galaxy