Pluto Planet Or Not

Pluto was discovered in 1930s. In the 1990s astronomers found a lot of smaller objects beyond Neptune. The Kuiper Belt, also known as the Edgeworth-Kuiper Belt has many moons orbiting it which makes it a planet. In 2005, the discovery of Eris, an object in the belt, was slightly larger then Pluto. Should Eris be a planet? What happens when other big objects are found? Should they be planets as well? In 2006, Pluto was demoted by a vote of hundreds of astronomers, days later other astronomers signed a petition saying they would discount the vote. The arguement is far from over. In 2010 new sightings saw Eris smaller than Pluto. Possibly in 2015, we will discover if Eris is a planet and how many more there are.