Meet The Tiny Bomb-Wielding Spacecraft That Could Someday Save Our Species

"Scientists have given some thought as to how we'll
defend ourselves when a giant asteroid inevitably
heads our way and solutions range from paintballs
to nukes. A team at Iowa State University has settled
on the latter, and they've got plans for ship to do it
waiting in the wings."

See:

http://gizmodo.com/5961485/meet-the-...ve-our-species