Because nuking it may be the best best!Luckily, the bright radioactive minds at Los Alamos National Laboratory are looking for a definitive answer to that. Right now, they’re using a 32,000-processor rig to simulate a nuclear attack against an incoming asteroid. Above, a one megaton “nuclear energy source” (warhead) hits the Itokawa asteroid—half a kilometer wide. And good news! The blast and subsequent shockwave would be enough to “mitigate” the rock’s threat to our tiny planet. Which means it wouldn’t kill us all, right? Why don’t we bump it up to two megatons, gents.