Stockpile Stewardship

In the wake of President Donald Trump’s announcement that the United States would test nuclear weapons “on an equal basis” with other countries, Secretary of Energy Chris Wright clarified this did not mean explosive tests. “I think the tests we’re talking about right now are systems tests,” Wright said in the interview last week on […]

The National Nuclear Security Administration (NNSA) announced Tuesday its Los Alamos National Laboratory selected tech companies Hewlett Packard Enterprise (HPE) and NVIDIA to develop and deploy two new supercomputers. The two computers, named “Mission” and “Vision,” will be used for modeling and simulations at the lab.  “Mission” will be used to assist NNSA research without […]

President Donald Trump said on his Truth Social account Wednesday he ordered the Pentagon to “immediately” begin the process of testing nuclear weapons “on an equal basis” with Russia and China. Trump’s announcement came around an hour before he was set to meet with Chinese president Xi Jinping. It also came the day before Vice […]

WASHINGTON – For technical reasons there is no current need for the United States to conduct above-ground or underground nuclear weapons’ tests, David Beck, President Donald Trump’s nominee for deputy administrator of defense programs at the National Nuclear Security Administration (NNSA), told a Senate hearing Tuesday.  Beck was responding to Sen. Jacky Rosen (D-Nev.), whose […]

WASHINGTON – For technical reasons there is no current need for the United States to conduct above-ground or underground nuclear weapons’ tests, David Beck, President Donald Trump’s nominee for deputy administrator of defense programs at the National Nuclear Security Administration (NNSA), told a Senate hearing Tuesday.  Beck was responding to Sen. Jacky Rosen (D-Nev.), whose […]

Sandia National Laboratories has developed a high-security mobile vault to be rapidly deployed and safeguard critical materials in remote locations, according to a July 15 press release by the lab. The project is in response to a request by the National Nuclear Security Administration’s (NNSA) Stockpile Responsiveness Program, and is led by Sandia’s Transportation Safeguards […]

Sandia National Laboratories has developed a high-security mobile vault to be rapidly deployed and safeguard critical minerals in remote locations, according to a July 15 press release by the lab. The project is in response to a request by the National Nuclear Security Administration’s (NNSA) Stockpile Responsiveness Program, and is led by Sandia’s Transportation Safeguards […]

A welding machine reportedly caught fire in April during welding activities in the Principal Underground Laboratory for Subcritical Experimentation (PULSE) at Nevada National Security Site. The fire was reported in a June 6 report by the Defense Nuclear Facilities Safety Board (DNFSB). According to the report, a welding machine caught fire and the fire watch […]

WASHINGTON – Former Rep. Brandon Williams, President Donald Trump’s nominee to head the National Nuclear Security Administration, told a Senate panel Tuesday he would “speak up” for the “men and women” that work for the agency. “If confirmed, I commit to you that I will stand up for the men and women of NNSA [National […]

Marvin Adams, deputy administrator for defense programs at the National Nuclear Security Administration, told the Exchange Monitor Friday that the U.S. does not need to critically test, even in a new administration. “If it’s based on purely technical considerations, we are confident that we can get the information we need staying subcritical,” Adams said. “We […]

MERCURY, Nev. — The next subcritical experiment in Lawrence Livermore National Laboratory’s Nimble is scheduled to fire in April, senior officials at the Nevada National Security Site site told the Exchange Monitor Wednesday. The experiment, named Nob Hill, would be the second in the three-shot series of experiments. The first experiment, called Twin Peaks, took […]

MERCURY, Nev. — The next U.S. laboratory for testing nuclear weapons without nuclear explosions will be done a year or two sooner but cost more than forecast this spring, officials said here Wednesday. The officials spoke to the Exchange Monitor and other media outlets during a press tour of the Nevada National Security Site, organized […]

MERCURY, Nev. — The next subcritical experiment in Lawrence Livermore National Laboratory’s Nimble is scheduled to fire in April, senior officials at the Nevada National Security Site site told the Exchange Monitor Wednesday. The experiment, named Nob Hill, would be the second in the three-shot series of experiments. The first experiment, called Twin Peaks, took […]

Marvin Adams, deputy administrator for defense programs at the National Nuclear Security Administration, told the Exchange Monitor Friday that the U.S. does not need to critically test, even in a new administration. “If it’s based on purely technical considerations, we are confident that we can get the information we need staying subcritical,” Adams said. “We […]

The Department of Energy gave $5.65 million to the National Nuclear Security Administration for 11 research projects in using plasmas to simulate nuclear explosions, a press release said. The National Nuclear Security Administration (NNSA) would collaborate with the DOE Office of Science to study plasmas created in a lab to create the conditions found in […]

The National Nuclear Security Administration released a report last week that said the U.S. nuclear stockpile had 3,748 warheads as of September 2023. Information on the nuclear weapons stockpile was last released and updated in October 2021, when the stockpile had 3,713 warheads. The number of nuclear warheads is down 88% from its peak in […]

The National Nuclear Security Administration released a report last week that said the U.S. nuclear stockpile had 3,748 warheads as of September 2023. Information on the nuclear weapons stockpile was last released and updated in October 2021, when the stockpile had 3,713 warheads. The number of nuclear warheads is down 88% from its peak in […]

Scientists from the Department of Energy’s Lawrence Livermore National Laboratory in California developed an algorithm to simulate nuclear reaction rates, which are tough to make in a lab, to collect data to maintain the nuclear weapons stockpile, according to a press release. The hybrid computing scheme “successfully” simulated the scattering of two neutrons, which can […]

Scientists from the Department of Energy’s Lawrence Livermore National Laboratory in California developed an algorithm to simulate nuclear reaction rates, which are tough to make in a lab, to collect data to maintain the nuclear weapons stockpile, according to a press release. The hybrid computing scheme “successfully” simulated the scattering of two neutrons, which can […]

On May 14, the Lawrence Livermore National Laboratory completed the first in the Nimble series of underground subcritical experiments at the Nevada National Security Site, according to a press release. The subcritical experiment was conducted at the Principal Underground Laboratory for Subcritical Experimentation, also known as the U1a Complex. In June 2023, a senior Livermore […]

On May 14, the Lawrence Livermore National Laboratory completed the first in the Nimble series of underground subcritical experiments at the Nevada National Security Site, according to a press release. The subcritical experiment was conducted at the Principal Underground Laboratory for Subcritical Experimentation, also known as the U1a Complex.  In June 2023, a senior Livermore […]

The Nuclear Regulatory Commission will let the Tennessee Valley Authority produce more tritium for U.S. nuclear weapons using the Watts Bar Nuclear Plant in Tennessee, according to a Tuesday regulatory filing. The NRC on April 15 approved a license amendment request the Tennessee Valley Authority (TVA) submitted in March 2023. The commission posted the amendment online Tuesday. […]

The Nuclear Regulatory Commission will let the Tennessee Valley Authority produce more tritium for U.S. nuclear weapons using the Watts Bar Nuclear Plant in Tennessee, according to a Tuesday regulatory filing. The NRC on April 15 approved a license amendment request the Tennessee Valley Authority (TVA) submitted in March 2023. The commission posted the amendment […]

Excluding equipment and construction, the National Nuclear Security Administration will spend about $1 billion over 10 years to study the effects of aging on nuclear-weapon cores, the Government Accountability Office reported this week. According to the Government Accountability Office’s (GAO) unclassified review of the National Nuclear Security Administration’s (NNSA) classified “Research Program Plan for Plutonium […]

Mission Support and Test Services is under investigation for two incidents in the summer of 2023 in which falling rock injured employees at the deep-underground explosive testing facility it is building in Nevada for the National Nuclear Security Administration.  The enforcement arm of NNSA’s Office of Enterprise Assessments notified Mission Support and Test Services (MSTS) […]

WASHINGTON — A three-year slip for a new x-ray imager will not necessarily result in a bigger, more massive W93 nuclear warhead, senior officials from Los Alamos National Laboratory said here Thursday. That was a slight change in tune compared with an appraisal one of these people made last year. For the last three years, […]

Substandard contractor performance delayed the launch of a new Uranium Processing Facility at the National Nuclear Security Administration’s Y-12 National Security Complex in Tennessee until 2029, according to the agency’s latest annual progress report.  The start of operations at the Uranium Processing Facility (UPF), a milestone known as CD-4, has now slid four years out […]

Despite worries within the nuclear security enterprise of “massive uncertainties” in its delivery date, the Scorpius x-ray imager might actually be ready later this decade, a spokesperson for the Sandia National Laboratories said last week. “The deterministic date…is to have Scorpius operational before the end of calendar 2027, with subcritical experiments to start in calendar […]

Despite worries within the nuclear security enterprise of “massive uncertainties” in its delivery date, the Scorpius x-ray imager might actually be ready later this decade, a spokesperson for the Sandia National Laboratories said last week. “The deterministic date…is to have Scorpius operational before the end of calendar 2027, with subcritical experiments to start in calendar […]

The National Nuclear Security Administration mismanaged development of two machines used to measure the explosive power of nuclear weapons, leading to program delays and cost overruns, the Government Accountability Office found in a recent report.  To continue its long-running program to test the effectiveness of nuclear weapons without actually detonating one, the NNSA established the […]