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Monday, September 28, 2026 2:09 PM ET

Scientific American - Top Stories

Trump rolls back fuel economy standards for cars, breaking with 50 years of policy

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What scents trigger childhood memories for you?

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T. rex was as warm-blooded as humans, new study finds

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After brutal cuts, can this NASA center still build multibillion-dollar space telescopes?

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Surprising result seen in primordial matter inside atom smasher

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How apple detectives solved the mystery of an ancient tree-and rewrote the history of fruit

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What's the point of the interstellar Fermi Explorer mission?

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Jupiter-bound spacecraft Juice to fly by Earth Monday

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The secret Cold War history of Tetris

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It's Time to Stand Up for Science

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How a horse flu crisis fueled animals rights advocacy in the U.S.

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AI solves 79-year-old mathematical mystery

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October 2026 - Issue

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Sign up for the New Issue Alert

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How the body's own immune system can attack the brain

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Blood test for multiple cancers clears crucial hurdle on track to FDA approval

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See the Taurids light up the fall sky with brilliant shooting stars

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2026 could be the turning point on climate action, Al Gore says

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Why Hawaii is facing an unprecedented hurricane season

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9 'boundaries' keep Earth livable. We've breached 7 of them

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Vox's Unexplainable and Scientific American take on dark matter, uncertainty and the unknowable

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Why mathematicians are suddenly hiding research results

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View all Discussions

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Diesel fuel prices are rising-chemistry can help explain why

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Trump's FDA nominee Heidi Overton affirms MMR vaccine and mifepristone are safe at crucial Senate hearing

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Mathematicians use AI to find mysterious symmetries, solving decades-old problem

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OpenAI's agent hacking Australia is a warning for governments everywhere

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America's AI giants want safety controls. China's open models complicate that

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COVID cases are on the rise-here's what you need to know

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Scientists discover largest new impact crater in the solar system ever-on our moon

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What changing 'Lake Ontario' to 'Lake America' means for weather forecasts

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Is 'poop maxxing' the key to health?

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What your dog really thinks about the world

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See the first new species of cat discovered in more than a century-it's adorable

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Watch a robot dog run a marathon faster than the average human

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Japan just hit a new longevity milestone

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AI steals mathematicians' record for most complicated curve

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What does OpenAI's blockbuster Navier-Stokes proof mean for the real world?

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NASA's Nancy Grace Roman Telescope glimpses its first cosmic light

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