


Fragmentary Latin inscriptions can be completed with AI
A new model is finding connections spanning the Roman world
History depends on the written word. But how can a historian interpret a text if its authorship or age are uncertain, and indeed some of those words are missing? The problem is not a new one. But where human experts have struggled, historians are turning to artificial-intelligence (AI) models for suggestions, with impressive results.
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Inside the top-secret labs that build America’s nuclear weapons
To maintain the bombs, and build new ones, scientists are pushing the frontiers of physics

What does it take to make a nuclear weapon?
Introducing “The Bomb”, our new four-part podcast series on the past, present and future of America’s nuclear stockpile

Do probiotics work?
For a healthy microbiome, eating your greens is a surer bet
Why do people sleep? A new study points to the brain
Experiments on fruit flies suggest tiredness could be caused by damaged neurons
Will AI make you stupid?
Creativity and critical thinking might take a hit. But there are ways to soften the blow
Should you take creatine?
The performance-enhancing drug is legal, safe—and may have benefits beyond sport