I actually took a class on this stuff in college. Basically, the forces involved are so tremendous that there's probably nothing we can do to prevent an asteroi

I actually took a class on this stuff in college. Basically, the forces involved are so tremendous that there's probably nothing we can do to prevent an asteroid impact. Also, odds are we wouldn't even detect it until maybe a few days before. Maybe if we had 20 year's notice, we might be able to do something. But even then, probably not.