Neutron, and Dirty Bombs. Know about the design, massive yield, and devastating impact of each nuclear weapon type.

Graham Allison was among the first scholars to sound the alarm about the risks of Russian loose nukes, and in "How to Stop Nuclear Terror" (January/February 2004), he continues to warn of this ...

Manhattan Project scientists working on the Thin Man plutonium gun assembly. Two atomic bombs nicknamed Little Boy and Fat Man were detonated over Hiroshima and Nagasaki in August 1945, effectively ...

VIENNA, Sept 2 (Reuters) - There is no sign North Korea reprocessed spent fuel from its main nuclear reactor into plutonium in the past year, but it seems to have continued to enrich uranium, the ...

The U.S. Department of Energy (DOE) has reportedly decided that weapon-grade plutonium from the Cold War-era stockpile could be turned into nuclear reactor fuel. The DOE will give American companies ...

NAGASAKI – Thousands bowed their heads in prayer in Nagasaki on Saturday to mark the 80th anniversary of the city’s atomic bombing, as the mayor warned that current global conflicts could push the ...

What we know so far: The United States is opening part of its Cold War – era plutonium stockpile to help reduce reliance on Russian uranium and speed development of next-generation nuclear reactors.