I find it very unusual that Pluto has four moons and is call a Dwarf Planet. Sure it's smaller than the other planets, but making up a new category to justify personal prejudice in stellar geography is a waste of time and paper. Now, they have looked at Mercury and decided that it's only the core of a rocky planet which is all that is left. It's not even a whole planet by their own standards, so what do we call Mercury now? It is obvious that planetary scientists do not have enough work on their…