Comment: Frankly speaking, no official body or institution in the position of authority can guarantee anything like that will or will not happen at any given moment, like in 3 years. That's just illogical!
The theory states that world will come to an end, based on deductions from the Mayan calendar, as a mysterious planet, Nibiru, collides with Earth.
The claims have fueled a Sony Picture, titled "2012," which will come to theaters on Friday.
Some Internet theorists have blamed NASA for keeping information concealed about the Earth's doomsday.
"There is no factual basis for these claims," NASA said on its Web site.
Comment: Could you please prove it?
"Astronomers would have been tracking it for at least the past decade, and it would be visible by now to the naked eye."
"Obviously, it does not exist."
Comment: Obviously - for NASA's ridiculous logic - if you cannot see a thing, the thing doesn't exist. No doubt. Little kids use this kind of logic closing their eyes when they don't want to see a threat. Here, we are not trying to say Nibiru exists but to point out the absurdity of such reasoning.
"Credible scientists worldwide know of no threat associated with 2012," said NASA.
Comment: And now, we got an official definition of credible scientists!
NASA added that the Mayan calendar does not end on December 21, 2012, as many have insisted. Instead, it begins another period as soon as the calendar comes to an end.
According to AFP, some theorists claim that the Earth's rotation and magnetic polarity are related, causing a magnetic reversal roughly about every 400,000 years.
"As far as we know, such a magnetic reversal doesn't cause any harm to life on Earth," said NASA.
"We have already determined that there are no threatening asteroids as large as the one that killed the dinosaurs," the space agency insisted.
The Mayan calendar does not end in 2012 its just the beginning of the next 'long period'. The Mayan's did not believe the world would end in 2012.
Even if a primative society of 1100 to 1800 had a supersticious and entirely irrational belief that it was possible for not a comet but a Planet! to hit the earth, isn't it crazy for anyone to take this seriously in modern times.
The last huge impact by a comet 65 million years ago. A comet of this size would not be missed so its not NASA that's being illogical for stating that if they can't see such a comet that it does not exist.
The illogical people are those who believe the Mayan's who lived in clay huts were capable of seeing a comet and predicting its path and timing for well over a thousand years.