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Gravitation

Earth's Gravitation

planet Neptune, planet Uranus, elliptical orbits, law of gravitation, gravitational attraction

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Newton's law of gravitation was the first theory to accurately describe the motion of objects on the earth as well as the planetary motion that astronomers had long observed. According to Newton's theory, the gravitational attraction between the planets and the sun holds the planets in elliptical orbits around the sun. The earth's moon and moons of other planets are held in orbit by the attraction between the moons and the planets. Newton's law led to many new discoveries, the most important of which was the discovery of the planet Neptune. Scientists had noted unexplainable variations in the motion of the planet Uranus for many years. Using Newton's law of gravitation, the French astronomer Urbain Leverrier and the British astronomer John Couch each independently predicted the existence of a more distant planet that was perturbing the orbit of Uranus. Neptune was discovered in 1864, in an orbit close to its predicted position.



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planet Neptune, planet Uranus, elliptical orbits, law of gravitation, gravitational attraction, planetary motion, new discoveries, astronomers, planets, existence, discovery, theory, earth, Scientists, sun, According, years

 
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