Featured series 
Science & Tech
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One effort to safeguard humanity: AI ‘constitutions’
Berkman Klein Center heard calls to keep models ‘honest, helpful, harmless.’ It’s a work in progress.
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Chatbot attachment issues
When AI companions get a personality update, some users respond with grief, study finds
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Is there a philosopher in the house?
Tech insiders call for humanist-scientist discourse amid ‘Copernican moment’ of AI age
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Can you tell an amorphophallus from an aspergillus?
Word nerds, classicists, and botanists, it’s your time to shine in etymology quiz inspired by Div School book
Quiz
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What it takes to solve math’s toughest problems
Logic skills, yes, but also two seemingly incompatible traits: Confidence and humility
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When the sea steals homes and jobs
Along West Africa’s Gulf of Guinea, Salata Institute research is helping communities weigh excruciating choices
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Discovering a new earthquake fault under Los Angeles
“Los Angeles is caught in a vise,” says John Shaw, an associate professor of structural and economic geology at Harvard who was half of a research team that discovered a…
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Physicists Slow Speed of Light
Light, which normally travels the 240,000 miles from the Moon to Earth in less than two seconds, has been slowed to the speed of a minivan in rush-hour traffic —…
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Saving plants that may save us
One particular discovery highlights the importance of facilities like the Harvard Herbaria and Arnold Arboretum in storing and preserving the important information found in plants. An extract of a small…
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Charles Schaff brings knack for finding fossils to field — and Harvard
Charles Schaff ‘s official job description isn’t “fossil hunter.” He is a curatorial associate at the Museum of Comparative Zoology. Schaff, however, makes regular trips to look for fossils in…