Since 1947 the clock’s hand have been set at the beginning of every year.
A selection of the best of our coverage of the conflict from the past fortnight.
What are tactical nuclear weapons and would Russia resort to using them in Ukraine?
Nuclear weapons production and testing contaminated many sites across the US and exposed people unknowingly to radiation and toxic materials. Some have gone uncompensated for decades.
Complex as they are, Oppenheimer’s life and views of the bomb are far easier to wrestle with than the reality of nuclear power itself.
The United States and Russia, the two biggest nuclear powers, have no imminent plans for talks on a nuclear deal. That should change, writes a former US diplomat.
The Christopher Nolan film ‘Oppenheimer’ is set to become a summer blockbuster. But one of the featured sites in the movie is a sobering reminder of the horror of nuclear war.
Spying was a concern from the dawn of the nuclear age, but charges that J. Robert Oppenheimer, who led the development of the first nuclear weapons, was a Soviet spy have been proved wrong.
If Russia moves nuclear warheads into Belarus the political fallout could be enormous.
Putin was put on the defensive during an increasingly rare Q&A over the war’s progress. Meanwhile, disquiet among potential rivals is growing.
Depleted uranium munitions are bad news for enemy tanks, but are not nuclear weapons, and studies have shown that they pose low risks of radiation or chemical exposure.
Libya’s lost but found yellowcake poses no significant security risk but highlights the need for African countries to get their acts together in the area of nuclear safety and security governance.
The ‘Washington Declaration’ unveiled during the state visit by South Korean President Yoon Suk Yeol gives Seoul a greater role in coordinating a nuclear response strategy.
The first AUKUS-class submarine will be delivered in the 2040s. We may only get about a decade of use before adversaries can easily detect the new boats.
The left was split over whether Nato expansion had prompted the Ukraine invasion or whether it was an act of imperial aggression that must be opposed.
What are classified documents? Who gets to see them? What happens if they are released? A former State Department and Department of Defense staffer who had top secret clearance provides the answers.
Russia now presents a serious threat to the international order.
A recent barrage of nuclear-capable missile tests and a change in law setting out the conditions for a nuclear strike show that North Korea’s leader is intent on reunification on his terms.
Tactical nuclear weapons were designed to be used on the battlefield rather than for strategic defense, but that doesn’t mean there’s a plausible case for using them.
With heightened superpower tensions, war in Europe and new military alliances forming, New Zealand’s defence review must set the right course in a dangerous world.