FYI
http://www.badastronomy.com/bad/misc/planetx/index.html
Planet X - as in the mysterious planet discovered by Sumerians that will pass us (actually - was supposed to have passed us a year ago) and cause planetwide ecological disaster - is a myth propogated by a woman claiming to channel a group of aliens.
The above link is to a site run by an astronomer who - quite conclusively - debunks this hoax.