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Scientific American

See the Orionids meteor shower at its peak this week

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Christina Applegate says she was misdiagnosed with MS—how could that happen?

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The mathematical impossibility of making a perfect world map

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Scientists left in the dark by National Science Foundation grant application delays

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Green stars do exist—and others shine pink or purple, too

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The Selfish Gene at 50

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Math Puzzle: Baby bottle mix-up

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Why we probably live in a quantum multiverse

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Why data centers are reviving solid-state transformers

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What actually makes ultraprocessed foods unhealthy?

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We’re addicted to social media. How do we get sober?

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These extreme cosmic explosions are breaking physics

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The provocative new theory that could explain aging and disease

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Science crossword: Scroll bars

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Readers respond to the June 2026 issue

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Poem: ‘Life in Bilateral Wonder’

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Our love-hate relationship with social media

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November 2026: Science history from 50, 100 and 150 years ago

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Inside the bold, quixotic quest to store planet-warming carbon in the ocean

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How your brain learns to cope with uncertainty

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How a fusion start-up could help maintain the U.S. nuclear arsenal

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A graphic explainer of uranium enrichment

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