You can now watch the award-winning documentary “SALLY” about the first American woman in space, Sally Ride, on Disney+ and Hulu.
Briefing
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Readers Respond to the March 2025 Issue
Letters to the editors for the March 2025 issue of Scientific American
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American Education Demands a Fact-Based Curriculum, Not Religious Ideology
One hundred years after the Scopes trial, religious ideologues are still trying to supplant evidence-based curricula with myths, to the detriment of a well-informed society
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Hotter Nights after Scorching Days Threaten Heart Health and Mental Well-Being
When nights stay hot, more people die, many from cardiovascular problems. But there are simple methods you can use to stay cooler and healthier
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Why Some Black Holes Keep ‘Burping’ Light after Eating a Star
After black holes devour stars, sometimes the feast comes back up
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Denmark Let Amateurs Dig for Treasure—And It Paid Off
The Danish government deputized private detectorists to unearth artifacts buried in farm fields. Their finds are revealing the country’s past in extraordinary detail
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Poem: ‘Prayer to Fireflies’
Science in meter and verse
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Google AI Grant to iNaturalist Prompts Community Outcry
The nonprofit iNaturalist announced that it received a $1.5-million grant from Google’s philanthropic arm to develop generative AI tools for species identification. The news didn’t go over well
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Wind and Solar Energy Are Cheaper Than Electricity from Fossil-Fuel Plants
Even without subsidies, renewable energy is staying competitive with power from gas and coal
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Scientists Find Universe’s Missing Matter in Intergalactic ‘Cosmic Fog’
Researchers have used cosmic explosions called fast radio bursts to illuminate the intergalactic medium