The trans-Neptunian objects are heavenly bodies belonging to the solar system whose orbit lies beyond that of Neptune. Often refer to them talking about the Kuiper Belt or the Oort cloud. Are assumed at the beginning of the twentieth century as a result of various studies on gravitational attraction. The most famous is easy to find because Pluto has a particular magnitude that makes it visible and because it is closer to the ecliptic line. On May 31, 2008 was discovered on the first trans-Neptunian object that runs a retrograde orbit. In 2010, however, it was possible with Hubble to give the name to 14 other cosmic objects trans-Neptunian, with diameters ranging between 40 and 100 km. "The trans-Neptunian objects interest us because they are the rocks made since the formation of the solar system," said study author, Cesar Fuentes.
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| The main trans-Neptunian objects |
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