That Xena name was suggested by the daughter of one of the project managers, but i read that other accounts have it done my a prior decision to name it with a X as in planet X?
I bet their is something larger out there… in fact i cant discount the theory of “Nemesis” which is a large proto star with a huge elliptical orbit. It can remain unseen even with modern tech. If some of you may have read that we just discovered a brown dwarf not more than 10 Light years from here. The basic idea is this “dark companion” when it eventually gets within the boundary of our system… it stirs up all the ball of ice in orbits past Pluto and pushed them into the inner solar system, where some can threaten the Earth/ moon system. How would a large comet hitting earth strike you?
Next year we finally launch a probe to visit Pluto and then followup with a trip into the oort cloud and other reaches of our system. Also a new space telescope is due to launch and will greatly help with the search for other “plutos”.