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| | Astronomy - Wikipedia, the free encyclopedia |
 | | Astronomy (Greek: αστρονομία = άστρον + νόμος, astronomia = astron + nomos, literally, "law of the stars") is the science of celestial objects and phenomena that originate outside the Earth's atmosphere, such as stars, planets, comets, aurora, galaxies, and the cosmic background radiation. |
 | | Modern astronomy as practised is not to be confused with astrology, the belief system that states that people's destiny and human affairs in general are correlated to the positions of celestial objects in the skies. |
 | | Although classical astronomy was one of the seven key subjects taught at medieval universities in Europe, observational astronomy was mostly stagnant in medieval Europe until XIII century, when lived astronomers and astrologers as Johannes de Sacrobosco, in England, and Guido Bonatti from Forlì, in Italy. |
| en.wikipedia.org /wiki/Astronomy (1926 words) |
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