Well...what do you know. For years I knew of two worlds outside the orbit of Pluto. Theire names are Quaoar and Varuna. [They are not classified as "planets." They are considered "minor planets" because of their size and orbit.] Now there is a new one to add to those distant worlds. Apparently, there is a celestial body that is bigger than Pluto that is farther out than the ninth planet as well. This tenth planet is nick-named "Xena". Go figure. I hope that name changes because it brings to mind a cheesy fantasy show with lesbian overtones.