Astronomy
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
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...Scripture. Astrophysical Discoveries Isaac Newton (1642 1727...Planet X" led in 1930 to the discovery of Pluto, now classed as...large. Modern Techniques, Discoveries, and Theories Astronomy...supernova explosion. The discovery by Karl Jansky in 1931 that...Neptune; more recently, the Magellan probe to Venus (1990) and...