I hope we never see this day in the future, when the newscaster calmly informs us that an asteroid is on a collision course with Earth.
In any case, if this scenario did unfold, I’d like to think we’ll have the in-space technological capability to deal with the threat — but if we didn’t, I’m sure we’d work on it pretty damn quickly (given enough warning… if not… well, I’m out of ideas).
But please… don’t go strapping a nuclear warhead to the rock… it might not end quite so well.
Source: xkcd