Production of plutonium pits at the Savannah River Site and Los Alamos National Laboratory remains a top priority of the U.S. Department of Defense and the National Nuclear Security Administration.

ALBUQUERQUE – The agency that oversees the United States’ nuclear arsenal says it doesn’t need to do any broad environmental reviews of a proposal that calls for ramping up production of plutonium ...

The two lawmakers questioned the necessity of the nuclear weapons agency's plutonium pit strategy in a letter exclusively shared with USA TODAY.

Voyages into space are among the most iconic endeavors of the 20th and 21st centuries. Spacecraft that have ventured out to this “final frontier” have relayed stunning images and enlightening ...

LOS ALAMOS, N.M. (KRQE) – The Santa Fe County Commission is asking Los Alamos National Laboratory to review plans for the production of plutonium cores. The commission says it wants an environmental ...

Initial construction work on the Savannah River Site plutonium pit production facility could begin by the end of the year. James Toler, executive vice president of the National Nuclear Security ...

SEATTLE — New batches of plutonium-238 may become available to NASA starting in 2017, perhaps preventing feared shortages of this vital spacecraft power source. The United States has not produced ...

Deep space exploration, in which spacecraft travel to the outer reaches of our solar system or beyond, requires a whole lot of power. For NASA, a valuable source of this power is a radioactive ...

Behind closed doors, Congress is in the process of making a decision that will have a profound impact on nuclear risk levels and global security. Hanging in the balance is a decision to recklessly ...

NASA will now foot the entire bill for the United States' production of plutonium-238 spacecraft fuel, which recently started up again for the first time in a quarter-century. The space agency had ...

WASHINGTON (Reuters) - North Korea has restarted production of plutonium fuel, a senior State Department official said on Tuesday, showing that it plans to pursue its nuclear weapons program in ...

The National Nuclear Security Administration (NNSA), the organization within the Energy Department that is responsible for producing and maintaining US nuclear warheads, is moving forward with a plan ...