History of Astronomy By fowler_s66 Apr 29, 1054 Chinese Astronomers observe supernova Apr 29, 1609 Galileo uses telescope Italy Apr 29, 1705 Halley predicts the return of Halley's Comet Apr 29, 1846 Johann Galle discovers Neptune Germany Apr 29, 1957 Russians launch Sputnik Apr 29, 1961 Yuri Gagarin is first man in space Apr 29, 1969 Armstrong is the first man to walk the moon Apr 29, 1997 Cassini begins its journey to Saturn Apr 29, 2012 First visual proof of black holes Mar 2, 2022 Al Mamon founds the school of Astronomy Iraq
