The 30-year effort to build a defense system against incoming nuclear missiles is complete. Yet the shield is basically still a prototype.
The state is set to roll out a plan for how it would respond, now that the Hermit Kingdom has developed a missile capable of traveling 4,000 miles.
Kim Jong-un's regime is chugging along in its quest to develop solid-fuel engines for long-range missiles that could send a nuke across the world.
The YouTuber behind the science channel Veritasium got to pretend to blow up the world at a decommissioned nuclear launch site in Arizona.