What if there really are aliens and they do attack? Read what two scientists reveal in this "how-to" survival manual for the space age. Some events (such as a deliberate asteroid strike) produce such a massive setback to life, the Earth and humanity that we must understand and prepare for them, even if the chances are low that they'll come about. But where to begin? Drs. Travis S. Taylor and Bob Boan are experienced scientists, physicists with expertise in both defense and military signal intelligence and experience working with the Department of Defense and NASA. These two intellectual heavyweights take us on an amazing journey through what we do¾and do not¾know about how to defend ourselves from space. Sure, that day may never come in our lifetimes¾but everyone should have a copy of this lying around just in case. . . . At the publisher's request, this title is sold without DRM (Digital Rights Management).