I have read several books by Zecharia Sitchin and found his conclusions intriguing and logical. But it remained largely speculative with no real evidence to back up his claims of an additional hidden planet in our solar system. Move along, nothing to see here.
And then something a bit eerie happened. Caltech scientists announced that there is indeed a huge, unseen planet at the far edge of our solar system and they call it Planet 9. Why is this a bit eerie? Planet 9, aka Planet X, or - as the late Zecharia Sitchin revealed as the planet's true name - "Nibiru", is destined to bring about apocalyptic disasters on Earth as its massive orbit travels near our planet.
If that isn't incredible enough, Nibiru is populated by a race of extraterrestrials known as the Anunnaki, who supposedly are the creators of our human race. There is a very interesting story there as to how and why it happened, you may want to learn more about. It would make a great movie. In fact, it almost did. See: https://www.youtube.com/watch?v=myZ38HwNG9o ("Conspiracy theorist" have many ideas why this film was not completed, but the actual more factual reason is creator Jon Gress perhaps went too far over budget.)
If this info troubles you a bit, fear not and read this article by Rob Waugh's Yahoo blog:
Mr. Waugh's article helps to clarify a few things I have not mentioned.
Move along, still nothing to see here?
(Let's hope not.) :)