There's all sorts of speculations about Earth's distruction. Some say it's going to end as the words in the Bible and Mayan calender say in 2012. No without majic the only way this cn occer is Science. An asteroid aside from a super volcano i s the only thing I know that could bring about worldwide destruction. But they say there is something worse, something that can reck more havock... a comet. A comet is mroe dangerous and destructive, but why> Is it moving faster, is it heavier? The Bible codes which some are written by ETs say that a comet is coming for us. My question is how could a comet take us by surprise? Besides being larger they have a large tail that's clearly visible once it crosses Jupiter's orbit. We could have several months toa years warning. We could atlast try to send some nuclear warheads.