There have been many theories that surround the "2012" year. For anyone who does not know about 2012, it is the year that the world will supposedly end or go through a massive change. I read an article by a scientist claiming that 2012 is the time when the earth is due for a mass extinction. And what caught most of my attention most is that it claims 2012 is part of a reoccurring cycle of earth mass extinctions. Here is the video of the Nemesis theory and our sun twin star. Nemesis, the end of earth