I am not sure what some folk get all distressed about with this.
21,000 light years is a freaking long way from here, even though it
is in our own Galaxy. Even if this rock could cruise through our Galaxy
at the speed of light, it would take 21,000 years for it to get here and
be close enough to change our planet in any way. I would bet this Planet
X or Nibaru, or whatever it is called, is flying through our Galaxy at say,
maybe 1/100th the speed of light, or maybe even 1,000th that speed.
Which means that it will be hundreds of thousands of years before it
even gets close.
And why do some think that the end of the world is coming on 12/21 2012?
The only thing that is going to end is the Mayan Calendar. Life will keep
on keeping on. It might be a new era with a lot of different things
happening, spiritually, morally, etc. but nothing is going to end just
because December 21, 2012 arrives. Just my opinion though !
[edit on 19-5-2008 by ZOOMER]