23 ч 38 мин, 29 дек 1924 г. - Hubble discovers that the "Andromeda Nebula" was actually a galaxy outside of the Milky Way, confirming that the universe was actually much larger than we originally guessed, and that other galaxies outside of our own exist.
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23 ч 38 мин, 29 дек 1924 г.
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