Planet X versus Bad Astronomy!
Am listening to Art Bell show, which currently has a "debate" between Phil Plait, who does the excellent "Bad Astronomy" web page, vs. Nancy Lieder, who runs Zetatalk, and is channeling aliens.
No rational person should ever get into a debate with an utter crackpot. She spews more scientific crap per second than any scientist could debunk in an hour, and Plait's web page says as much.
The great disaster is due to happen in the next couple of weeks, and when it doesn't, it will be amusing to see how the loonies change their stories.