Chinese military scientists have released the field test results of a rare simulated “dirty bomb” attack, showing the ...

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 ...

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 ...

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

SEATTLE (AP) — For much of the 20th century, a sprawling complex in the desert of southeastern Washington state turned out most of the plutonium used in the nation’s nuclear arsenal, from the first ...

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 ...

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.

More than a half century after the U.S. ignited 67 atomic weapons in the central Pacific Ocean, a former Navy base in the Bay ...