I'm on Rayraz's side.  I read the Elenin article and to be polite I'd say conspiracy theory alarmist; bluntly shear quackery.  I googled the Dr. Mark Sircus who penned the article and can find no credentials anywhere but I did find other articles that were authored by a Dr. Mark Sircus even blowing the alarm whistle and debunking accepted medical findings.  Is it the same person?  If it is, he must be a genius to be such an authority in medicine and astrophysics.  

And why is his article even getting exposure now that the window of catastrophe is upon us and no one has noticed any change in this here home planet of ours.  I say snake oil saleman.

If believe the end will come some day but I don' think it will be a comet/neutron star/brown dwarf name Elenin in September 2011.

My opinion.