Six End-of-the-World Myths Debunked

And did the ancient Maya—whose empire peaked between A.D. 250 and 900 in what is now Mexico and Central America—really predict the end of the world in 2012?

At least one aspect of the 2012, end-of-the-world hype is, for some people, all too real: the fear.

NASA's Ask an Astrobiologist Web site, for example, has received thousands of questions regarding the 2012 doomsday predictions—some of them disturbing, according to David Morrison, senior scientist with the NASA Astrobiology Institute.

"A lot of [the submitters] are people who are genuinely frightened," Morrison said.

"I've had two teenagers who were considering killing themselves, because they didn't want to be around when the world ends," he said. "Two women in the last two weeks said they were contemplating killing their children and themselves so they wouldn't have to suffer through the end of the world."

(Related gallery: "Apocalypse Pictures—Ten Failed Doomsday Prophecies.")

Fortunately, with the help of scientists like Morrison, most of the predicted 2012 cataclysms are easily explained away.

2012 MYTH 1
Maya Predicted End of the World in 2012

The Maya calendar doesn't end in 2012, as some have said, and the ancients never viewed that year as the time of the end of the world, archaeologists say.

But December 21, 2012, (give or take a day) was nonetheless momentous to the Maya.

"It's the time when the largest grand cycle in the Mayan calendar—1,872,000 days or 5,125.37 years—overturns and a new cycle begins," said Anthony Aveni, a Maya expert and archaeoastronomer at Colgate University in Hamilton, New York.

The Maya kept time on a scale few other cultures have considered.

During the empire's heyday, the Maya invented the Long Count—a lengthy circular calendar that "transplanted the roots of Maya culture all the way back to creation itself," Aveni said.

During the 2012 winter solstice, time runs out on the current era of the Long Count calendar, which began at what the Maya saw as the dawn of the last creation period: August 11, 3114 B.C. The Maya wrote that date, which preceded their civilization by thousands of years, as Day Zero, or 13.0.0.0.0.