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1924 in science : ウィキペディア英語版 | 1924 in science
The year 1924 in science and technology involved some significant events, listed below. ==Astronomy and space exploration==
* November 23 – Edwin Hubble announces his discovery that Andromeda, previously believed to be a nebula, is actually another galaxy, and that the Milky Way is only one of many such galaxies in the universe.〔In ''The New York Times''. Formally published December 30 and presented as a paper at the January 1, 1925 meeting of the American Astronomical Society. 〕 * The Einstein Tower near Potsdam, Germany, designed by Erich Mendelsohn, becomes operational as an astrophysical observatory. * 1056 Azalea is discovered.
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