Is planet X fake or real?
2005....Eris, formerly known as Xena, Xena was named after another female like Venus to actually have another "woman" in our Solar System. Pluto, Ceres and many others had that "X" title!
Yea like kbearioh said its a dawerf planet
real, its a dwarf planet :)
It was a real theory, which is not accepted anymore.http://www.ask.com/wiki/Planets_beyond_Neptune
Not real, if object that large was in our solar system we would have discovered it by now.