How the super El Niño could turbocharge warming in the Himalayas
After one of the worst natural disasters in the region’s history, attention is turning to the looming super El Niño
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Scientific American
Science journalism from Scientific American
Science · 497 articles · page 9 of 14 · fetched 2 minutes ago
Top medical leaders urge Americans to get their flu and COVID shots in lieu of CDC vaccine campaign
The Trump administration has so far been silent on flu, COVID and RSV vaccine guidance for the coming season, even as…
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GLP-1 weight-loss medication could slow aging and extend lifespan
Giving old mice semaglutide—commonly sold as Wegovy or Ozempic—extends their lifespan remarkably, a new study finds
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The risk of high blood pressure in pregnancy is rising—and the damage can be life-changing
A recent CDC analysis says that, between 2016 and 2024, the rate of high blood pressure among pregnant women rose by 73…
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Why this Canadian island appeared to disappear
A floating island in a Canadian reservoir moved more than 30 kilometers across the water—here’s why
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Newly discovered ‘demon cave fish’ hid out in Alabama military installation for 40 years
Scientists named this oddball creature after the Demogorgon from Stranger Things
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The hackers protecting America’s water supply
Cybersecurity experts are volunteering to keep America’s utilities safe from attacks
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House passes stopgap bill that pauses changes to federal science grant-making process
The proposed changes, which would have given control of science funding to appointed bureaucrats, were criticized…
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Have we finally found dark matter?
The world’s biggest dark matter search saw a particle it cannot explain
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Why the Grand Canyon flash flood was so devastating
Experts explain why a monsoon storm turned so deadly
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Where is the Roman Telescope in space?
The Nancy Grace Roman Telescope is headed toward a Lagrange point, a critical position in outer space where…
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Growth hormone peptides promise to stall aging—but does the science stack up?
Sermorelin, tesamorelin and other growth hormone peptides are being touted as antiaging elixirs, but what evidence is…
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Bonus crossword: Tints of life
Play a bonus science crossword that ties into even more stories from the September 2026 issue of Scientific American.
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The brain, solved
The human brain has upward of 86 billion neurons, connected by some 100 trillion synapses
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Nepal’s deadly debris avalanche is a warning for the rest of the world
Avalanches like the one that devastated parts of Nepal and Tibet are becoming more common thanks to climate change.…
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Mathematician discovers how to fold the smallest origami doughnut
How many times do you have to fold a piece of paper to make a doughnut? After decades, a mathematician has determined…
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What’s next for NASA’s new Roman Space Telescope?
After a flawless launch, the Nancy Grace Roman Space Telescope is on a mission to solve some of the universe’s biggest…
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The backlash against screens in schools is escalating
School districts are banning AI, states are limiting educational technology in classrooms, and Meta will set new…
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NASA launches Roman Space Telescope to explore dark energy and distant worlds
NASA’s Nancy Grace Roman Space Telescope is on a mission to probe dark energy, hunt for distant worlds and transform…
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Dark matter experiment catches quietest neutrinos ever measured
In its hunt for dark matter, the XENONnT experiment has detected the rare, feeble glow of neutrinos smacking into…
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Commercial paleontology: How much should a dinosaur cost?
Fossils are selling for tens of millions of dollars at auction. But why are the ancient creatures the hot new thing for…
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NASA’s Nancy Grace Roman Telescope launches to space
The Nancy Grace Roman Telescope will probe dark matter and dark energy, discover exoplanets and study stars
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Why obsessing over self-improvement could be sabotaging your brain
Our obsession with ‘maxxing’ every aspect of our lives could actually be stressing us out
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NASA’s Roman Space Telescope could find alien Earths—but not like you think
The Roman Space Telescope will spend more than a quarter of its time staring at the Milky Way’s bulge, a star-packed…
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Why your ability to cope with stress changes with time
Seasonal changes have more effects on your biology and behavior than you might realize
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Where are all the aliens? A new book explores possible answers
Seven Rasmussen, an astrobiologist and author of the new book Cloudy with a Chance of Starships, gives readers a tour…
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Top 10 Roman Space Telescope science breakthroughs
NASA’s Roman Space Telescope will open a whole new window on the cosmos. Here are 10 things it’s likely to show us
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Alpha School’s AI teaching model is expanding. Does it work?
The fast-growing private-school network is handing much of instruction over to artificial intelligence. Researchers say…
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See last night’s ‘blood moon’ eclipse from around the world
In a near-total lunar eclipse, the moon turned red-orange for viewers in North America, Europe and Africa
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How the brain learns to read is an evolutionary mystery—a new study offers clues
Reading hasn't been around for long, evolutionary speaking. Instead, the brain recruits systems evolved for other…
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How will NASA’s Roman Space Telescope see exoplanets?
NASA’s newest major observatory will include the most advanced planet-imaging tech ever flown in space. Here’s how it…
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GTA has always raised anxieties over video games and violence—here’s what the science actually says
The evidence in favor of and against video games promoting aggressive behavior is murkier than you might think
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How changes to Endangered Species Act regulations could hurt wildlife
Recent changes to the implementation of the Endangered Species Act could put wildlife at risk
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Tropical Storm Dolly forms in the Atlantic
It’s a weird meteorological coincidence on the heels of Dolly Parton’s death
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Climate change is supercharging El Niños, coral records show
Fossilized Galápagos corals show clear evidence that today’s El Niños are much stronger than those in the past
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What Nepal's floods reveal about “cascading hazards”
The Nepal disaster appears to be a “cascading event,” where one hazard seems to have triggered another, experts say
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