[Uncle Miltie]

Large asteroids would be good targets for multiple thermonuclear devices. Prepare the targeting regimen, boys. We may have to go nuclear!

[Ancesthntr]

Large asteroids would be good targets for multiple thermonuclear devices. Prepare the targeting regimen, boys. We may have to go nuclear!

No kidding. And by 2880 we ought to have a very sophisticated civilization - one that could easily swat such an asteroid into the Sun or even capture it for its metals. Aside from the fact that I don't give much of a damn about what will happen in 877 years, I don't worry much about our GGGGG, etc. grandkids' ability to handle it quite easily.