The 12th Planet - Tapa blanda

It has been predicted and foretold that cataclysmic events will occur in this December. Our Earth's crust will move, continents will shift. The poles will reverse. Many if not most of the people living on Earth will die. Only a select few will survive.
This will all happen as the 12th Planet, the Planet X or Niburu, a planet four times the size of Jupiter, comes closer to Earth.
Sources say Niburu is now behind the sun so we cannot see it. When its orbit brings it around so we can see it, it will become shot out like a slingshot. Its gravity will catch a hold of Antarctica and drag it northward bringing the South Pole up to what is now the tip of Brazil.
Authorities say that the President or the United States is about to make an announcement of these facts but the announcement has been postponed for fear of spreading panic.
But is this really true? What is the scientific basis for this?
Planet X is the 12th Planet because there are nine planets previously known, plus there is the sun and the moon. Now we know about Nibiru, so Nibiru is the 12th planet.
But is this really true? Is there really a 12th Planet? Now that we have proven as much as any such thing can be proven that life did not originate on Earth but on another planet, we come to the question of Planet X or Niburu. Will the gravitational forces of this planet destroy our life on Earth as we know it and, if so, when?
If this is going to happen a thousand years from now or even a hundred years from now we need not be much concerned about it. However, according to those who have had access to new translations of the works of the ancient Sumerians, it will happen at the end of this year, right now.
If this is the case, what should we do about it, or should we not worry about it, since there is nothing we can do anyway?