posted on May, 1 2006 @ 12:42 AM
I've thought about this before. If you just put a single rocket on a large space rock, the time to impact may be a very long time and the point of
impact (somewhere on Earth) may be a bit unpredictable. You wouldn't want to target an enemy country and then accidently nuke your country would
you? Then it might take many years to nudge such a space rock to get the right trajectory with a single rocket propelling it. Therefore, someone
would have to use a lot more rockets and resources to propel a space rock faster and to a more predictable trajectory. Given how NASA has crashed
space probes on Mars, I don't think we would feel safe if someone was actually considering trying this. It would be a whole lot cheaper and quicker
to use more conventional means to attack someone.
If a large space rock did impact the Earth, the collateral damage may include a global dust cloud blocking sunlight which would stop production of the
food crops we all eat. Mass starvation on a global scale would make us all wish it had never happened.