Pluto has been sacked. After 75 years in the Planet Club, its been blackballed. And all because it's too dusty and insufficiently round. It has been put into the category "Dwarf Planet".
I say that is semantically ridiculous. If you are a dwarf azalea, you are still an azalea. If you are a dwarf juniper, you're still a juniper. If you're a dwarf tosser... hang on. But if you're not a Planet, how can you be a Dwarf Planet?