Pluto for more than 70 years was a planet was calassed as a planet,2000 when the international astronamical union down-graded it to a dwarf planet.a dwarf planet orbits the sun like any other planet,but is smaller. pluto is s small that it cant clear other objects out of its path.
Pluto is named after the Greek god of the underworld. This is a later name for the more well known Hades and was proposed by Venetia Burney an eleven year old schoolgirl from Oxford, England.