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| Satellites |
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1988 ESA's Ariane-3 launches 2 communications satellites (1 Indian)
1981 Satellites China 10 and 11 launched into Earth orbit by B-1 rocket 1981 European Space Agency's Ariane carries 2 satellites into orbit 1980 Earth satellites record gamma rays from remnants of supernova N-49 1964 U.S.S.R. launch 3 Kosmos satellites 1963 2 secret U.S. military satellites launched from Cape Canaveral 1945 Arthur C. Clark proposes relay satellites in geosynchronous orbit 1851 William Lassell discovers Ariel and Umbriel, satellites of Uranus 1829 Asaph Hall, discovered satellites of Mars, Phobos and Deimos 1799 William Lassell, discoverer, satellites of Uranus and Neptune 1610 Galileo discovers 1st 3 Jupiter satellites, Io, Europa and Ganymede |
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