Featured series 
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Single-minded pursuit of profit can get firms in trouble. Same thing with AI.
Researchers see lesson for lawmakers, executives as systems asked to run business, maximize gain resort to unethical, fraudulent tactics
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Blood test has potential to detect earliest signals of Alzheimer’s disease
New study suggests higher levels of pTau217 predict a faster progression, even when initial brain scans appear normal
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Dangers coming from inside the house
John D. Spengler reflects on 50-year career of clearing the air — including in hockey rinks and on airplanes
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Voting goes to court
Election law expert assesses challenges to state authority as parties look ahead to midterms
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How deep is your knowledge of the ocean?
If you’ve got thalassophobia, this research-backed quiz is not for you.
Quiz
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What makes a good student
Inner drive, integrity, open-mindedness among qualities highlighted by faculty
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How super-agers keep their brains young
In podcast, experts break down ‘biological contradiction’ of a 65-year-old with the memory of a 25-year-old — and what that means for the rest of us
Podcast
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Known unknowns
The questions that keep scientists up at night
