that will be really cool if we make it past 2012 dec 21st, when the sun reaches the centre of the galaxy - first time in 26 000 years, scientists say there will be 3 eclipses, and that the magnetic field of the earth will switch during the Solar eclipse, they have found that the magnetic field of the earth is recorded in volcanic lava, and they have found many magnetic field flips in the past, where in a couple of hours it has changed 60 degrees, it will definately happen, its how it will effect us that has got everyone a little scared, it just so happens that the mayan calender ends on this date and Nostradamus also claims this date is a great event, but that asteroid does sound sexy!