The B61-13 variable yield gravity bomb is now going into full production seven months ahead of schedule, Sandia National ...

The National Nuclear Security Administration said development for a bomb 24 times more powerful than the one dropped on ...

It was the greatest experiment ever conducted on U.S. soil. Discover 20 little-known facts about the Manhattan project.

The lab designing the warhead says it is accelerating the timeline to respond ‘to a critical challenge and urgent need.’ ...

Dr. Bethe is noted for his discovery of the thermo-nuclear origin of the sun’s energy.) The Bulletin elevates expert voices above the noise. But as an independent nonprofit organization, our ...

The clock hands are set by the Bulletin of the Atomic Scientists, a group formed by Manhattan Project scientists at the University of Chicago who helped build the atomic bomb but protested using it ...