The former head of Ukraine’s military intelligence recalls how thousands of tactical nuclear weapons were removed from its ...

As Prime Minister Benjamin Netanyahu of Israel prepares to meet with President Trump, the question of whether to strike ...

You may have never heard of the National Nuclear Security Administration, but its work is crucial to your safety—and to that of every other human being on the planet. If Elon Musk’s Department of ...

As Trump takes office, issues of arms control, the U.S. arsenal and weapons testing will be on the radar for many nuclear weapons researchers.

The Chinese government has claimed that it has been "forced" to develop nuclear weapons as a United States official issued a warning about China's weapons of mass destruction program. Newsweek has ...

The number of Chinese operational nuclear warheads has increased by more than 100 to over 600, the Pentagon reported.

The U.S. hasn't tested a nuclear weapon in decades, and since the 1990s has used simulations and experiments to verify they're working properly. NPR was granted a rare look at how they do it.

Drones have the potential to enhance nuclear deterrence, but they also introduce significant risks in terms of escalation control and first-strike stability.

The goal of testing a nuclear weapon is not to undermine arms control agreements or give a green light for further testing by Moscow or Beijing. It would be done in service of a larger ...

Iran has accumulated a vast amount of enriched uranium, which is "very, very close" to weapon grade, International Atomic Energy Agency (IAEA) chief Rafael Mariano Grossi told NDTV during the ...

Since mid-2019, Iran has significantly shortened its “breakout time”—the amount of time needed to produce enough weapons-grade highly enriched uranium (HEU) to build a nuclear weapon to mere days. How ...