[RadioAstronomer]

We haven't even solved the "three body problem" (in the general equation form), much less all of the perturbations that occur in the solar system as an object moves thru it. We can predict where this object will be with greater and greater accuracy as both the event time draws closer and we acquire more data points to predict from.

[Scully]

A 2Km bolide will only wipe out 95% of our flora and fauna. Any thoughts on the next dominant species? I'm betting on the cockroach.