I was watching TV late last night and the History channel had a special called Nostradamus 2012. I thought, "Oh, this ought to be 'good'!" As I suspected, this special was full of misinformation and speculation. Some of the "evidence" of this 2012 event was just plain incorrect, and some was pure speculation, with no grounding in modern science. I'm disappointed that the History channel would air such a special with no hint of scientific skepticism. During this special many of the so-called experts in the subject talked about their views of what might happen and why they believe so. I was disappointed to see that a lot of the speculation arises not from scientific data, but from carvings in rocks made thousands of years ago.
The view most contradictory to scientific thought, however, is that the "galactic alignment" is going to cause widespread destruction. The fact that they call this "astronomy" is insulting. This "alignment" of our sun with the galactic center occurs every 26,000 years, as the Earth's axis wobbles like a top. This wobbling is called precession. Precession is nothing new, the Earth has been doing this (as far as we know) since it was formed. What makes this "alignment" any different than the hundreds before it? Nothing. Besides, if we were to view this event from any location other than Earth, it would look completely different. The view from Mars or Jupiter would be totally different. Who are we to think that since our view of the sun and galaxy line up that something catastrophic will happen. This is typical of a Dark Age Earth-centered universe (which is obviously false).
Below I have made an animation that shows the sun's position at Dec 21 in the years 1800, 1900, 2000, and 2100. In this animation, you can see the apparent motion of the sun due to the Earth's axis precession. Clearly, if alignment with the galactic core was a catastrophic event, we'd already be seeing effects!
So next time you hear someone babbling about the 2012 disaster, just remember to take it with a grain of salt, and a good heap of scientific skepticism. I, for one, am so tired of the 2012 hype (and it is just hype), as are many legitimate astronomers. So please, just dispense with the BS.