Is 2012 the end of the world?

If you scan the Internet or believe the marketing campaign behind the movie "2012," scheduled for release in November, you might be forgiven for thinking so. Dozens of books and fake science websites are prophesying the arrival of doomsday that year, by means of a rogue planet colliding with the Earth or some other cataclysmic event.

Normally, scientists regard Internet hysteria with nothing more than a raised eyebrow and a shake of the head. But a few scientists have become so concerned at the level of fear they are seeing that they decided not to remain on the sidelines this time.

"The world will not come to an end on Dec. 21, 2012," E.C. Krupp, director of Los Angeles' Griffith Observatory, declared in a statement released Thursday by the observatory and Sky & Telescope magazine. Krupp debunks the 2012 doomsday idea in the cover story of the magazine's November issue.

Morrison said he attributes the excitement to the conflation of several items into one mega-myth. One is the persistent Internet rumor that a planet called Nibiru or Planet X is going to crash into the Earth. Then there's the fact that the Maya calendar ends in 2012, suggesting that the Maya knew something we don't. Finally, end-of-the-worlders have seized upon the hubbub about the 2012 date to proclaim their belief that end times are drawing near.

Morrison, who heads the Lunar Science Institute at the Ames Research Center in Northern California, has coined a term for the phenomenon: "cosmophobia," a fear of the cosmos. According to Morrison, for the most vulnerable among us, all of the things we've learned about the universe in the last century have only increased the number of potential threats to our existence.

Besides fearing a rampaging planet, the worriers think the sun might lash out at the Earth with some calamitous electromagnetic force. They also fear that some sort of alignment between the Earth and the center of our galaxy could unleash catastrophe.