Internet conspiracists have predicted that the world is going to end in December 2017 as Nibiru, also known as Planet X, may hit the earth and bring apocalypse.
Nibiru is between four and ten times as big as Earth and has an orbit far greater than Pluto.
According to a report published in ZetaTalk website, Nibiru returns every couple of hundred thousand years, making a fly by somewhere between Neptune and Mars. The planet’s return may cause extension of Earth, conspiracy theorists believe.
Doomsday has been predicted in year 2003, 2007, 2012, and 2015. However, few scientists have raised questions on the existence of Nibiru and have even said the planet is not real.
Conspiracy theorists said an object that has a large orbit would be visible to the naked eyes and would cause massive changes to the orbits of other planets.
However, Caltech astronomer Mike Brown has noted that if the object existed on the suggested orbit, Jupiter would have expelled it already.
Senior research scientist Don Yeomans, who heads the Near-Earth Object program office at Nasa's Jet Propulsion Lab in a blod wrote, "There is no credible evidence - telescopic or otherwise - for this object's existence. There is also no evidence of any kind for its gravitational effects upon bodies in our solar system. I do however like the name Nibiru. If I ever get a pet goldflish (and I just may do that sometime in early 2013), Nibiru will be at the top of my list."