Nibiru
This montage of images taken by the Voyager spacecraft of the planets and four of Jupiter's moons is set against a false-color Rosette Nebula with Earth's moon in the foreground. NASA

Gill Broussard, an amateur astronomer and Nibiru researcher have come up with his new theory that Planet X or Nibiru does exist. Not only this, he also foresaw that the mythical planet will appear like the moon when it approaches the Earth.

Broussard had made these revelations during an interview for a YouTube video with a conspiracy theorist and fundamentalist Christian pastor Paul Begley.

According to the popular belief, the collision of Earth with the hypothetical giant planet, which is termed as the Nibiru cataclysm, is imminent and our days are now numbered. The conspiracy theorist, in the video, claimed that the Planet X or Nibiru would pass close to the Earth and ultimately destroy it with its strong gravitational pull.

Broussard said he is yet to find a genuine image of the planet, though he has received thousands of potential ones.

"When it does show up we will have a full set of pictures of it, just like when we look at the moon, Mars or Jupiter – we will have full detailed pictures of it. We will recognize it as a brand new planet, it will be as real as such once you see it. You will see everything and it will be seen around the world, not just by someone in their backyard" he said.

Another US numerologist David Meade had earlier predicted that Nibiru would come close to the Earth on October 15, 2017, and would result in havoc leading to the world's end. He had also predicted about the collision of Planet X with the Earth on September 23, 2017, that might be fatal.  David Meade's predictions were based on a Biblical doomsday claim of 7-years tribulation period which results in catastrophic events and eventually to the destruction of Earth.

"It is the most important date of this century and millennium... Hold on and watch-wait until the middle of October and I don't believe you'll be disappointed" Meade added.

The speculations about the unknown planet had started in 1976 with Zecharia Sitchin's book "The 12th Planet", which was based on Babylonian and Sumerian concepts of the destroyer planet.

Speculations of a doomsday caused by Nibiru were popular in 2000, 2003, and 2012. The predictions in 2012 were based on the end of first Greek Cycle of Mayan Long Count calendar on December 21, 2012.

 "The planet in question, Nibiru, doesn't exist. So there will be no collision... the story of Nibiru has been around for years and is periodically recycled into a new apocalyptic fable" NASA's website stated.

NASA, however, has recently revealed the existence of a 9th planet in the solar system which is yet to be discovered. NASA's prediction was based on irregularities in orbiting of planets and asteroids in the solar system.