NASA themselves have officially recognized the possibility of Planet X / Nibiru. They recently announced that far beyond the outer planets in our galaxy there could be a mystery object or planet.
Just one year later, the newly launched IRAS (Infrared Astronomical Satellite) spotted a large mysterious object in the depths of space.
One thing that we do know is that NASA fear a comet impact, on January 12th 2005, NASA launched there "Deep Impact" project. The aim of this project was to fire a rocket into and destroy Comet Temple 1 on July 4th 2005. Many people believe this coudl be target practice for Nibiru.
NASA and other space exploration organizations commonly discover or come across new planets and comets. This makes it much more tangible that there could be mystery planets in line with our orbit.
Irregularities in the orbits of the outer planets have prompted astronomers to speculate upon the existence of further undiscovered planets, already we commonly discover or come across new planets and comets. This makes it much more tangible that there could be mystery planets in line with our orbit.
Came across the above article, wish NASA would make up their minds, seeing as their record on near miss objects from Space, does not seem too good recently. Look at comet Lovejoy, it was on top of us before NASA knew anything about it.