All I have to say is, whoever did that image simulation is very talented. Unless they used some "click-and-go" software, then shame.

But tell me this, if this world has so many astronomers and aeronautics people, wouldn't they have thought of the possibility of an asteroid that could wipe the planet out, completely?

Again, the education systems in this world are hardly worth anything. Rocket scientists who have no hypothetical thinking at all just prove that, more so.