An Asteroid Solution?

I don't spend much worrying about, or even considering near earth objects, and what happens if and when an impact occurs. I know there are others who are better equipped, and are very interested in this. Two of these people have come up with an elegant proposal.

It's beauty lies in its simplicity.

By hovering nearby for perhaps a year, the astronauts say, the spacecraft's own gravity could minutely slow the asteroid's progress or speed it up, a process that 10 or 20 years later would cause the rogue rock to miss Earth by a comfortable margin.

Of course that means we have to spot an impact threat 20 to 30 years prior to it's projected impact, but it is a very interesting idea, and a step in the right dirrection.