Mayans lived in Mexico of South America in the 7 th. century. The end of their civilisation is not known to history as on today. In those days they were experts in Astronomy. They developed their own calanders. The date of their calanders ends on
21-12-2012. Acording to Mayan prophet Pacal Voltan, the noon day sun on 21-12-2012 will exactly conjunct the crossing point of the Sun's ecliptic with the galactic equator, while also closely conjuncting the exact center of galaxy, resulting in biospheric destruction. Some called this as the end of the world. There are about 175books and a cinema on this phenomenon.
Due to some religious faith many are supporting this theory. According to them the Sun is close to the center of galaxy (Milkyway) and also passes through the dark rift of the galaxy. There is enormous nuclear action at the center of galaxy and the dark rift consists of interstellar dust that runs along the Milkyway from the galactic center.
The scientists of N A S A are not accepting this theory. It is the distance of the Sun from the centre of the galaxy, that is important to be considered, irrespective of the fact that the Earth , Sun and the galactic center are in line. The distance of the Sun from the galactic center is about 25000 light years. (One light year is the distance travelled by light in one year at the rate of 300000 K.M. per second). Sun is very far away from the center of galaxy and will not be affected by the neuclear reactions at the center or by the dark rift. The last time when the Earth was in the galactic plane was about 65 million years ago. The end of Dinosaurs is also estimated to be about 65 million years ago. But the end of Dinosaurs may not be due to the presence of earth in the Galactic plane. The impact of an astoroid is the most popular theory. The Sun takes about 225 million years for its revolution around the center of Milkyway. That means it will cross plane of Milkyway after 47.5 million years from now onwards. Considering an orb of influence, any evil effect on the Sun and the Earth may take place if any, only after 40 million years (400 lakhs of years). The statement that we are about to cross the galactic plane is untrue. Any damage to Earth or the end of the world is totally ruled out by the scientists of NASA.
According to them the only threats are global warming, loss of biological diversity, and perhaps collision from an asteroid or commet in the long future. Space guard survey is taken up by NASA astronomers to find any asteroid long before hitting the Earth. There are no such threats in near future. In case no such calamity occurs, the ultimate end of life on Earth occurs only when the life of Sun ends after 5000 million years from now
IN SHORT THE END OF THE WORLD WILL NOT OCCUR ON 21-12-2012 AS PREDICTED AND SUPPORTED BY MANY.
There are some who are spreading rumours of the end of the world on 21-12-2012, in the light of some writings by Mayans, Nostradamus and Bramham.
Even the Mayans did not predict the end of the world on 21-12-2012. They only prepared their calander upto 21-12-2012. This does not mean that they prepared their calanders upto the end of the world. They only predicted some biospheric destruction but not the end of the world. This is exagerated by many.
Nostradamus never predicted about the end of the world on 21-12-2012. In his letter addressed to his son Ceasar Nostradamus, he mentioned that he gave prophesies up to the year beyond 3000. Where is the question of the end in 2012. Bramham never predicted the end of the world in 2012. He mentioned that water level will touch the nose of a diety on the hill top at Vijayawada. Many reasons and many alternatives are possible for this. EVERYTHING IS MUCH ADO ABOUT NOTHING.
THE END OF THE WORLD ON 21-12-2012 AS A WHOLE MAY BE IGNORED AS IT IS PURELY IMAGINARY AND IS UNSCIENTIFIC.