Moral inhibitions and practical hurdles have played a role in avoiding nuclear war. That doesn’t necessarily mean they’ll continue to do so.

For decades before it was selected for closure, the Treasure Island Naval Station in San Francisco Bay overhauled military ships and housed nuclear war academies that used radium, plutonium, and cesium 137 in their training courses. The Navy knew for years that those materials were not always in safe hands. But it did not acknowledge that history publicly, and as a result, workers preparing for civilian redevelopment may have inadvertently spread radioactive material around the island, The Center for Investigative Reporting (CIR) has found in a yearlong investigation co-published by the Bulletin of the Atomic Scientists.

With Oppenheimer (the movie) poised to receive many Academy Awards tonight, let’s remember the many other scientists who tried to change nuclear weapons policy for the better.

In this commentary, Mari Faines considers the effects of colonialism, White supremacy, and racial injustice on nuclear weapons policy.

To date, there has been an unfortunate avoidance (among both diplomats and NGOs) of any explicit discussion of the effects of nuclear war; instead the language of the general conversation has tended to focus on the effects of a nuclear weapon, in the singular.

Speaking to the Geneva-based Conference on Disarmament on March 26, US Assistant Secretary of State Chris Ford presented the “Creating an Environment for Nuclear Disarmament” (CEND) initiative, which aims to bring countries together to explore how “it might be possible to ameliorate conditions in the global security environment so as to make that environment more conducive to further progress toward—and indeed, ultimately to achieve—nuclear disarmament.” Other interested states, and particularly US allies, should engage with the initiative, but with caveats.

The world's ability to monitor the Comprehensive Test Ban Treaty prevents rogue nations from claiming nuclear capacities that they don't have

Donald Trump was born on June 14, 1946. At that exact moment, the United States presented a blueprint for the abolishment of nuclear weapons to the United Nations Atomic Energy Commission. The rest is history.

On entering office, Joe Biden will have just 16 days to save the only treaty limiting US and Russian nuclear arsenals. How did we get here?

There has been a lack of research and education into the effects of depleted uranium munitions on post-conflict communities in Iraq and Syria, and cleanup efforts by both UN member countries and affected communities have failed.

Looking back at our best coverage in 2017 of emerging technological threats. 

A possible compromise between the haves and have-nots of nuclear weaponry may be the creation of nuclear-weapons-free zones, along with promises to not use nukes against unarmed states

While the nuclear situation between India and Pakistan is not good, it's been over-dramatized as near-inevitable here in the West, says a noted physicist from the region.

Long touted as the “perfect” energy source, fusion reactors share many drawbacks with fission—and even add a few new ones of their own.

The full text of the Bulletin Science and Security Board 2017 Doomsday Clock statement, which moved the Clock to two and a half minutes to midnight.

In keeping the hands of the Doomsday Clock at three minutes to midnight, the members of the Bulletin of the Atomic Scientists Science and Security Board mean to make a clear statement: The world situation remains highly threatening to humanity, and decisive action to reduce the danger posed by nuclear weapons and climate change is urgently required.

Shia doctrine, a mystery fatwa, and Tehran's real interests