It feels like we’re living in unprecedented times. Political divisions rack the U.S. and the world. The war between Ukraine and Russia has brought unforeseen advances in drone warfare. The foreign ...

Einstein is often linked to nuclear weapons, but few people know he once believed they were essentially impossible. The reason wasn’t politics — it was physics, and what scientists understood at the ...

There’s a strange irony in the history of the atomic bomb: the most famous scientist on Earth, the man whose equation unlocked the very possibility of nuclear energy, wanted absolutely nothing to do ...

On April 8, researchers, students, and policy experts from around the world tuned in to a Princeton virtual seminar to discuss whether the world’s most destructive weapons are becoming easier to use.