New dwarf planet hints at giant world far beyond Pluto

New dwarf planet hints at giant world far beyond Pluto - space - 26 March 2014 - New Scientist: "A surprise monster may be lurking in our solar system. A newly discovered dwarf planet has grabbed the crown as the most distant known object in our solar system – and its orbit hints at a giant, unseen rocky world, 10 times the mass of Earth and orbiting far beyond Pluto."