After Hiroshima and Nagasaki, a third plutonium core was prepared for potential use against Japan. Instead, it remained in US custody and became infamous for two deadly laboratory accidents that ...

I think we can all agree that the physicists, engineers, and chemists who worked on the Manhattan Project -- which ultimately ended World War II -- were consummate geniuses and paragons of ...

What does get different in a tale everybody thinks they already know when the lost chapter is a weapon that is already on its way? When the first two bombs of the Manhattan Project had accomplished ...

In 1946, a P-239 plutonium core scheduled for detonation-by-nuclear-bomb was harmlessly melted down and reintegrated into the United States’ nuclear stockpile. That was the end of a 14-pound metallic ...