Planet X or Nibiru is referred to in the Summerian tablets or cuneiforms, it is supposedly a 10th planet that has not been discovered yet.  Some say that it has been discovered by NASA and that Wiki-Sky, Google Sky, and WWT are covering the image (see last 2 videos).  Many think that Nibiru is possibly a spacecraft disguised as a planet, which the Elohim creator Gods from the Summerian Texts are using to return to the Earth every 3600 years.  Some think they are returning in 2012 for the Earth Ascension to assist us in this increase to the higher vibrations.   The videos below talk about theories that the universe was created by the Elohim and they used genetics to create mankind in their own image.