Linda Thomas-Greenfield, the American envoy to the United Nations, visited the atomic bomb museum in Nagasaki, Japan, becoming the first U.S. cabinet member to do so.
Experts from the United Nations nuclear agency have inspected the treated radioactive wastewater that has been discharged into the Pacific from Japan's Fukushima nuclear plant.
The White House in February claimed that it had intelligence suggesting Russia was developing a space-based weapon that would destroy satellites and cause untold chaos.
Missouri Sen. Josh Hawley is pushing to expand payments to those exposed to Manhattan Project chemicals in states, including Alaska, Kentucky and Tennessee.
Records have revealed that government officials knowingly disposed toxic chemicals improperly while trying to convince the people of St. Louis that the site was cleaned.
Georgia's second new nuclear reactor is now operational. Each can power 500,000 homes and businesses, but the project exceeded both cost and timeline projections.
Russia introduced a U.N. resolution to ban all weapons in outer space for all time just a week after vetoing a similar proposal from the United States and Japan.
The head of the United Nations' atomic watchdog recently voiced concerns about Iran's enrichment of uranium and the potential for clandestine activities.
Russia's Defense Ministry has announced plans for drills simulating the deployment of nuclear weapons. This follows comments by Western officials about the war in Ukraine.
Russia has defended its veto of a U.N. resolution urging prevention of a space-based nuclear arms race, proposing their own resolution for a ban on space weapons.
The planned exercise involving the practice deployment of tactical nuclear weapons in southern Russia is nothing unusual, according to Russian President Vladimir Putin.
Residents of impacted communities are heading to Washington to speak in favor of the Radiation Exposure Compensation Act before it expires this summer.