how was astronomy discovered
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how was astronomy discovered
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how was astronomy discovered, who discovered astronomy, when was astronomy discovered, what year was neptune discovered in astronomy, where was astronomy invented, how did astronomy begin, how did astronomy originate, discoveries made in astronomy, how did astronomy start, important discovery in modern astronomy, was found by astronomers who noticed, the history of astronomy, recent discoveries in astronomy, when was astronomy created, major discoveries in astronomy, the science of astronomy began with, history of ancient astronomy, astronomy facts and discoveries, history of astronomy facts, recent scientific discoveries in astronomy, new discoveries of astronomy