Pluto May Be Demoted

However, the resulting effect of its demotion will be the reclassification of all planets into those that are terrestrial (Mercury, Venus, Earth, and Mars) and those who are giant planets (Jupiter, Saturn, Uranus, and Neptune), followed by the dwarf planets in the Kuiper Belt (Pluto being the first to be discovered). It will still be a planet, but not in the same sense as our previous collection of nine planets which have been taught since 1930. For more on this subject, read about the possible demotion.