Nuclear weapons

A nuclear explosion in space would cause stunning auroras—and wreak havoc on satellites and space stations.

Is baby Skynet already here? We need robust laws now to withstand eliminating humans from nuclear decision-making

Russia may be planning to put a nuclear weapon in orbit. We have known since the 1960s why that is a bad idea

Costs are skyrocketing to modernize the U.S. nuclear arsenal. Instead of turning a blind eye, Congress should demand fiscal oversight and make hard decisions balancing costs with deterrence

Melba Phillips co-authored a paper with J. Robert Oppenheimer in 1935 that proved important in the development of nuclear physics. Later she became an outspoken critic of nuclear weapons

The Biden administration’s intention to use dozens of bombs’ worth of highly enriched uranium as fuel in a new civilian reactor sets a dangerous precedent, one that could help our foes get nuclear weapons

Minuscule amounts of uranium detected in the shells of turtles point to a new way to track such materials’ impacts on people and ecosystems

Oppenheimer won’t bomb in the box office, but despite its director’s best efforts, the science in the film is a bit of a fizzle

The U.S. ignored Oppenheimer’s warnings about nuclear weapons and rushed to build and deploy a dangerous technology. We must not make the same mistake with AI

A new report says flooding and heat waves exacerbated by climate change could complicate U.S. nuclear launches

Artificial intelligence algorithms will soon reach a point of rapid self-improvement that threatens our ability to control them and poses great potential risk to humanity

Facing Russia’s nuclear threats, the U.S. and its G7 allies must not whitewash their own