The Manhattan Project that built the atomic bomb wasn't without its own dangers. Experiments on a so-called "demon core" of plutonium caused the deaths of two Manhattan Project physicists. Both ...

Nuclear bombs do not rely on size, they rely on physics. Here is how chain reactions and hydrogen bombs unleash power on a ...

Despite the cheerful smiles on their faces, history records that the little box killed an estimated 80,000 civilians after it was detonated on August 9, 1945 over Nagasaki. Fat Man was detonated over ...

ALBUQUERQUE, N.M. (AP) — The federal agency that oversees the nation's nuclear weapons stockpile recommended Thursday that the production of the plutonium cores that trigger nuclear warheads be split ...