SpaceDistant dwarf planet called 'The Goblin' could point to Planet X There is a 300-kilometre-wide ice world in the far reaches of the Solar System - and its orbit is consistent with the presence of the hypothetical Planet X News
SpacePluto is not a planet – it's a billion comets squished together Pluto’s heart-shaped ice plain is full of nitrogen, which hints that the tiny world is made from a billion comets and could have a buried ocean News