1 year ago
Last edited at 7:31AM on 3/27/2012
It's considered a dwarf planet and there have been many like it discovered in the outer solar system. It's still a planet, but not considered in the same class as the big 8. There are hundreds of dwarf planets. That's why they don't want it to be in the same class as the larger inner planets.
By the way, dwarf PLANET has the word planet in it, so obviously it's a PLANET!