The mystery of Planet 9
Does Planet 9 really exist? The evidence is mounting about the possibility of a ninth planet. And not Pluto. Because of its vast distance from the sun and its non-reflective appearance, Planet 9 appears very dim.
Does Planet 9 really exist? The evidence is mounting about the possibility of a ninth planet. And not Pluto. Because of its vast distance from the sun and its non-reflective appearance, Planet 9 appears very dim.