In March 2009 a small asteroid nearly hit earth. Could a larger comet or asteroid hit earth causing a Doomsday event? Its recommended that an asteroid defense for earth be built, and this would be a great economic stimulus project. Bible prophecy and Nostradamus prophecies on asteroid or comet collisions with earth. Discusses predictions in Nostradamus quatrains, Bible Prophecy of the Book of Revelation, on the possibility of a a large meteor, asteroid, or comet having a collision with earth. This could be a Mega disaster for earth, with countries or continents destroyed and giant tsunami tidal waves. Why an asteroid defense should be built. In recent years asteroids have passed very close to earth in near misses. Also see my 30 minute video "Could an asteroid or comet hit earth? ". Copyright 2009 by T. Chase.