Plutonium is one of the most complex elements in the periodic table. First synthesized and isolated in 1940 by scientists at ...

The 2011 accident at the Fukushima-Daiichi plant in Japan inspired extensive research and analysis that elevated nuclear energy into a standard bearer for safety. It also inspired a number of studies ...

One of the most daunting scientific and engineering challenges today is ensuring the safety and reliability of the nation's nuclear arsenal. To effectively meet that challenge, scientists need better ...

Gathered in a control room deep in the Nevada desert, a team of researchers from Lawrence Livermore and Los Alamos national laboratories watched safety monitors as a carefully layered stack of ...

South Korea more than 20 years ago secretly conducted an experiment with traces of plutonium, a key ingredient in making nuclear weapons, a senior Bush administration official disclosed Wednesday.

In a maze of tunnels 900 feet beneath the Nevada desert, US nuclear weapons scientists have since the 1990s been intermittently agitating flecks of plutonium with chemical high explosives, carefully ...

LOS ALAMOS, N.M., July 24, 2002 - Sometime after midnight on Feb. 25, 1941, in a cramped, third-floor laboratory at the University of California in Berkeley, Glenn Seaborg, Joseph Kennedy and Art Wahl ...

2005-06-16 04:00:00 PDT Vienna-- Iran has admitted that it conducted small-scale experiments to create plutonium, one of the pathways to building nuclear weapons, for five years beyond the date when ...

According to a new UN report, Iran has reportedly admitted that it carried out experiments on plutonium, which can be used to make nuclear arms, up until 1998 -- that is, for five years longer that it ...

Iran has agreed to allow United Nations nuclear inspectors to inspect a heavy water reactor, the International Atomic Energy Agency said Friday. The IAEA said the inspection will take place before the ...