How close were the Nazis to developing an atomic bomb? The truth is that National Socialist Germany could not possibly have ...

Learn more about the major players and occurrences that led to the development of the Hydrogen bomb. This feature details ...

Did demons create the first atomic bombs? Every August, debate renews over both the wisdom and the morality of dropping the two American atomic bombs, 81 years ago, on the Japanese cities of Hiroshima ...

The first reports were met with disbelief. A single bomb with the explosive force to level a city; a bomb, detonated with such intensity it burned as bright as — maybe, even brighter than — the sun.

Editor’s note: The Bulletin of the Atomic Scientists presents here, from its September 1946 issue, an eyewitness account of the first atomic bomb test in the Marshall Islands. In it, the author not ...