Sadly we have nothing that comes close to getting a fleet of nuclear warheads far enough to intercept before it’s too close and we shotgun ourselves. Most likel

Sadly we have nothing that comes close to getting a fleet of nuclear warheads far enough to intercept before it’s too close and we shotgun ourselves. Most likely forms of diversion involve years of planning and deployment, and that’s minus the hasty R&D we’d need to do. For some discussion of the specifics... https://space.stackexchange.com/questions/7960/could-we-deal-with-an-asteroid-threat-given-current-technology https://space.stackexchange.com/questions/7960/could-we-deal...