With nine countries officially possessing nuclear weapons, any major confrontation involving nuclear-armed states could ...

A recent study has identified just two nations that could withstand a nuclear conflict. This comes amid escalating tensions in recent days, with America and Israel, both nuclear-armed states, engaging ...

How might Russia’s invasion of Ukraine — already a humanitarian, economic, and geopolitical crisis — turn into something much worse? Helpfully, I suppose, former CIA Director and US Army General David ...

In 1984, HBO debuted the made-for-TV film Countdown to Looking Glass. Now, 38 years later, renewed tensions between the United States and Iran — including threats to shipping in the Strait of Hormuz ...

In the many-sided conflict now underway against Iran (i.e., simultaneous and complementary operations led by the United States and Israel),[1] little concern has been expressed for a nuclear war. To ...

Sandia National Laboratories’ Z machine is the world’s largest pulsed-power facility. The machine, located in a fenced-in warehouse on lab property, employs about 300 scientists and technologists.

Nobel laureates called Pope Leo XIV's encyclical "Magnifica Humanitas" a "clarion call" and "a giant step forward" for the prevention of AI-driven nuclear warfare as they gathered in Rome July 16 to ...

The Cold War-era nuclear order—in which the United States and the Soviet Union held sway, establishing treaties that set the nuclear rules for the whole world—has clearly and irreversibly come to an ...

Add Yahoo as a preferred source to see more of our stories on Google. WASHINGTON – President Donald Trump ruled out using nuclear weapons against Iran as a way to deliver a decisive blow in a war that ...

Editor’s note: This is part of the “Nuclear winter: Why study it now?” series. Earth scientists Brian Toon and Alan Robock discuss their latest book on nuclear winter, “Earth in Flames” (Oxford ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Nobel Prize-winning physicist David Gross warned humans could only have ...