Hi guys, Its been said that dec21,2012 is the end of mayan calendar and the end of world.Let us leave the predictions of some calendars and prophets.but,i heard some astronomical information about dec21,2012.they are 1. winter solstice 2. Sun's pole shift 3. Earth's wobble finishes on 2012 4. Sun in the center of milky way 5. Supermassive blackholes in the center of milkyway would anything happen if sun goes to center of milkyway as there are supermassive blackholes. didn't this happen earlier?didn't sun go to center of milkyway earlier and escape from blackhole? http://antwrp.gsfc.nasa.gov/apod/ap021018.html http://news.nationalgeographic.com/news/2005/11/1102_051102_black_hole.html http://en.wikipedia.org/wiki/Galactic_Center http://www.mpe.mpg.de/ir/GC/index.php http://arxiv.org/abs/astro-ph/0502129 i thought you guys can give correct information about dec21,2012 so posted here.are the information above true.i want to know what you guys think with reasons.