hamburger228
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Thank you a lot! I was so confused with that information.
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Hello! I would like to know, when did humans realize that there are another galaxies? I have heard that it was when Hubble discovered, that Andromeda's nebula is The Andromeda Galaxy, but as I know, Hubble was launched in 1990 and I can't believe that we thought, that our galaxy is alone till that date (1990+).
