Do planet X exist?
Is there any proof that Planet X actually exists?
What is Planet X? Is planet 9 real? Why do people think a ninth planet exists? Is Planet Nine a real entity? Is there any proof that God actually exists? Is planet Niburu real? Are there undiscovered elements on other planets? Is there any proof that God really exists? What's the point of existence of other planets? Does the book Empty Planet really exist, or was it just a part of Criminal Minds? Is there any physical proof of aliens on earth? Is there any proof that God exists? Is Pluto a planet?  Is there any real proof of aliens? Is it scientifically possible to terraform a planet? Is it true that we have discovered a ninth planet in our Solar System? What are the proofs that aliens really exist? Is there any actual proof of aliens? Is there any scientific proof for the existence of aliens? Do aliens exist? Is there any image proof? Is there any scientific proof that the devil does exist? What are the chances that elements we don't know of exist on other planets or in other galaxies? Why has no one directly observed hypothetical "Planet 9" in our solar system? Could the recently discovered "planet 9" become part of the nemesis star theory? Where is Planet 9? Are humans truly from another planet? What is a planet? Is there any evidence that aliens visited our planet? Are there any proofs of aliens? Are there really 8 planets and 1 dwarf planet in the solar system?