nuclear monitoring

New satellite imagery indicates North Korea is expanding its uranium enrichment facility at Yongbyon, the country's main nuclear complex. The expansion suggests Pyongyang is continuing to build up its fissile material production capacity despite international sanctions and long-stalled denuclearisation talks, drawing attention from nonproliferation analysts and regional observers.

New quantum sensor technology is enabling significantly more accurate monitoring of nuclear activities, according to a report in the scientific press. The sensors offer improved precision for detecting and measuring nuclear materials, with potential applications in arms control verification, non-proliferation efforts and nuclear facility inspections. The development points to growing practical uses of quantum technology in sensitive security and regulatory fields.

The US military has shut down a long-running program used to detect nuclear missile launches, Ars Technica reports. The program, part of the Pentagon's early-warning efforts, monitored for ballistic missile launches. Details on why it was ended and what will replace its detection capability have not been provided, drawing attention from defense observers concerned about gaps in nuclear early-warning coverage.

The United States has carried out a blast simulation aimed at investigating allegations that China is conducting secret nuclear weapons tests, the South China Morning Post reports. The move highlights growing US concern over China's nuclear expansion and compliance with the international testing moratorium, amid broader tensions between the two powers over arms control and strategic stability.

The International Atomic Energy Agency has issued its 369th regular update from Director General Rafael Grossi on the situation in Ukraine. The statement continues the agency's ongoing monitoring of nuclear safety and security at Ukrainian nuclear facilities since the start of the conflict, covering plant operations, staff safety and external power supply.

The United States has carried out an experiment aimed at improving its ability to detect nuclear explosions. The test is intended to strengthen monitoring capabilities for identifying nuclear blasts, an area of ongoing concern given nuclear testing activity by other states. Details about the timing, location and methods of the experiment have not been widely reported, and reaction to the announcement remains limited.

Mass spectrometry, a technique for identifying gases and isotopes by their mass, is playing a growing role in nuclear fusion research. According to AZoQuantum, scientists use it to monitor plasma conditions, detect fuel impurities, and measure tritium levels in fusion experiments, helping improve reactor performance and move practical fusion energy closer to reality.

The United States has carried out an unusual test of its nuclear blast detection capabilities at the Nevada National Security Site. Details of the exercise remain limited, but such tests are typically aimed at verifying that sensors and monitoring systems can identify nuclear detonations. The announcement is drawing attention amid heightened global concern over nuclear testing and arms control.

Iran's foreign minister has suggested in private talks that Tehran is willing to restore nuclear inspectors' access to facilities damaged in bombing, according to sources. The reported offer would come in exchange for sanctions relief, marking a potential opening in tensions over Iran's nuclear programme and international monitoring of its sites.

A report argues that European governments and security bodies have progressively dropped Iran from their terrorism assessments, despite past cases linked to Iranian intelligence on European soil. Commentary around the piece suggests political and economic priorities, including preserving the nuclear deal and trade ties, have led EU capitals to understate the threat in official terrorism reporting, leaving a gap in how the risk is monitored and communicated.

Qatari mediators are pressing forward with efforts to broker a peace deal between the United States and Iran, according to reports from Reuters and Al-Monitor. The Gulf state, which has long played a bridging role between Washington and Tehran, is working to advance an agreement amid ongoing tensions over Iran's nuclear programme. Details of the proposed terms and the state of negotiations remain limited.