Is Pluto a Planet 

Due to its small size, some consider Pluto to be an asteroid or comet, rather than a planet. The debate arose upon the discovery of around thirty new objects in the outer part of the solar system that is part of a disk-shape cloud called the Kuiper Disk. However, the larger scaled objects recently discovered are about ten times smaller than Pluto and therefore does not fit the definition of a planet (a characteristic of a commonly accepted definition is that a planet has to be large enough for its own gravitational field to form the body into a sphere). Among the recent discoveries, there lies the possibility for larger sized Kuiper Disk objects (also known as Trans-Neptunian Objects), the size of Pluto to exist. In the event that these are discovered, Pluto will most likely still be classified as a planet due to its historical label.