The lab where Oppenheimer developed the atomic bomb is the linchpin in the United States’ effort to modernize its nuclear weapons. Yet the site has contended with contamination incidents, work disruptions and old infrastructure.

For the first time, a 'significant' statistical link has been documented between UFO reports and nuclear weapons tests.

Russia has flown a nuclear-arm-capable cruise missile propelled by a nuclear engine. In a televised conference chaired by Russian President Vladimir Putin the 15-hour flight of the 9M730 Burevestnik (NATO name SSC-X-9 Skyfall) was confirmed.