NASA Science Dec 14, 2007
NASA comment on 11/6/09 about 2012
"Question (Q): Are there any threats to the Earth in 2012? Many Internet websites say the world will end in December 2012.
Answer (A): Nothing bad will happen to the Earth in 2012. Our planet has been getting along just fine for more than 4 billion years, and credible scientists worldwide know of no threat associated with 2012."
But in those 4 (4.5) billion years the world has ended several times Where our existence is such a very small part of those 4.5 billion years.
What is happening in 2012 that we know of?
January 31 – 433 Eros, the second-largest Near Earth Object on record (size 13×13×33 km) will pass Earth
May 20 - Annular solar eclipse.