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Uranus, Neptune, Pluto, and the outer solar system
Unlike all the planets closer to the Sun, known since antiquity, the farthest reaches are the discoveries of the modern world. Uranus was discovered in 1781, Neptune in 1846, Pluto in 1930, the Kuiper belt group of objects in 1992, and though the Oort cloud has been theorized since 1950, its first m...
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| Lenguaje: | eng |
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Infobase Publishing
2010
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| Acceso en línea: | http://cds.cern.ch/record/1612932 |