Encephalitis lethargica is an illness that attacks the brain, leaving the victims like living statues—speechless and motionless. This disease turned into a full-blown epidemic around the world in the ...

In a sport short on U.S. stars, Saturday's duo could not be more different — the mercurial Lopez and the methodical Stevenson. Can chaos unnerve the machine?

What is connectomics? The field comprehensively mapping connections between synapses to reshape what we know about the brain.

The Great Pyramid has always invited audacious explanations, from alien architects to supernatural levitation. Now a cluster of new engineering studies is pushing aside the fringe ideas and replacing ...

How would you explain the weird things happening in these photographs?

The maker of ChatGPT hopes to triple its revenue in the coming year because it is planning to spend tens of billions of ...

Anthropic’s newest version of Claude displayed cutthroat tactics—and also revealed some big, weird feelings.

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