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Scientific American

Why Einstein's theories of relativity make time travel possible

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How mental exhaustion changes the choices you make

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Scientists get best-yet glimpse of Betelgeuse’s companion star

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What caused the magnitude 6.8 earthquake in Japan?

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Has NASA already found life on Mars?

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Can bees sense magnetic fields?

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The best science books to read this summer, according to Scientific American editors

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550 years later, scientists claim to have solved what killed Botticelli’s muse

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The math of traffic jams and how to avoid them

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SpaceX launches Starship on successful test flight

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Fungus-made fashion—researchers turn living organisms into textiles

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NHTSA considers new car door safety rules after fatal Tesla crashes

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When will the cyclosporiasis outbreaks end?

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Europe’s heat waves are killing thousands—and wringing its soils dry

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How a 99-year-old mathematician unraveled a century-old braid mystery

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Is it possible to regain a sense of smell? These scientists are working on it

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The Rubin Observatory’s greatest legacy will be this ‘movie’ of the sky

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Sunlight benefits and risks: what science says about healthy sun exposure

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How lost shipping containers helped map the world’s ocean currents

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Ancient geology could insulate Iran’s nuclear centrifuges under Pickaxe Mountain from bombing

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Transplanted testicular tissue grew sperm in an infertile patient

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Why environmental groups are suing over SpaceX’s land swap deal

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Why don’t insects live in the ocean?

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Humans may have spoken 10 times as many languages 2,000 years ago

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Why Tom Hiddleston finds Pompeii so haunting—and so human

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China’s Kimi K3 and the rise of open-weight AI models

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2026 Fields Medals go to four young mathematicians

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Do animals act weirdly during a solar eclipse? Or do we?

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Watch orcas smashing fish to smithereens, possibly for fun

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U.S. pledges $5 billion to boost AI in government-backed scientific research

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Long-lost coral reefs rediscovered off the coast of Africa

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What OpenAI’s rogue agent really did in the Hugging Face hack

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A huge cosmic object could force astronomers to rethink what a moon is

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These whales are the only ones that flip upside down. Now we know why

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OpenAI admits its agent went rogue and hacked AI start-up Hugging Face

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Mesmerizing NASA time-lapse reveals Mars’s craters, polar ice caps and deserts

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How a Futurama plotline led to a totally new math proof

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Rare double supernova discovered hiding in Jellyfish Nebula

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Rare footage reveals elusive Arctic bobtail squid mom with clutch of eggs

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This tiny, forgotten organ could help us live longer, healthier

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Inside the race to spot wildfires before they spiral out of control

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A SpaceX rocket is about to crash into the moon—scientists will be watching

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The Southern Delta Aquariids and Alpha Capricornids meteor showers are about to peak

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Neanderthals may have been just as smart as modern human peers

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Psychology researchers know why The Odyssey transcends time

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America is embarking on a risky experiment with GLP-1s and aging

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Accidental mix-ups of sounds reveal how the brain produces speech

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Why New York State imposed a data center moratorium

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U.S. cities have the worst air quality in the world right now—here’s how to stay safe

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