Fighting fire with fire: How prescribed burns reduce wildfire damage and pollution

Wildfires are becoming more intense and dangerous, but a new Stanford-led study offers hope: prescribed burns—intentionally set, controlled fires—can significantly lessen their impact. By analyzing satellite data and smoke emissions, researchers found that areas treated with prescribed burns saw wildfire severity drop by 16% and smoke pollution fall by 14%. Even more striking, the smoke …

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Ancient DNA reveals leprosy hit the Americas long before colonization

Leprosy’s tale stretches from 5,000-year-old skeletons in Eurasia to a startling 4,000-year-old case in Chile, revealing that the rare strain Mycobacterium lepromatosis haunted the Americas millennia before Europeans arrived. Armed with cutting-edge ancient-DNA sleuthing, scientists have pieced together remarkably well-preserved genomes that challenge the idea of leprosy as purely a colonial import and hint that …

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Scientists just found a sugar switch that protects your brain from Alzheimer’s

Scientists have uncovered a surprising sugar-related mechanism inside brain cells that could transform how we fight Alzheimer’s and other dementias. It turns out neurons don’t just store sugar for fuel—they reroute it to power antioxidant defenses, but only if an enzyme called GlyP is active. When this sugar-clearing system is blocked, toxic tau protein builds …

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From shortage to supremacy: How Sandia and the CHIPS Act aim to reboot US chip power

Once a global leader in chipmaking, the U.S. now lags behind. Sandia National Laboratories is spearheading a strategic comeback by joining a powerful new coalition the National Semiconductor Technology Center. Through cutting-edge research, collaborative partnerships, and workforce development, Sandia is aiming to reclaim semiconductor dominance, safeguard national security, and revolutionize tech innovation for everything from …

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A thousand colors, one galaxy: Astronomers reveal a cosmic masterpiece

Astronomers have produced the most detailed map yet of the Sculptor Galaxy, revealing hundreds of previously unseen celestial features in stunning color and resolution. By combining over 50 hours of observations using the European Southern Observatory s Very Large Telescope, scientists captured a full-spectrum portrait that unravels the galaxy s stellar makeup in thousands of …

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You hear the beep, but can’t find the car: The hidden flaw in electric vehicle safety

As electric vehicles grow more popular, their warning sounds may not be doing enough to protect pedestrians. A Swedish study shows that these signals are hard to locate, especially when multiple vehicles are involved, leaving people unable to tell where danger is coming from or how many cars are nearby. ​As electric vehicles grow more …

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The AI that writes climate-friendly cement recipes in seconds

AI researchers in Switzerland have found a way to dramatically cut cement s carbon footprint by redesigning its recipe. Their system simulates thousands of ingredient combinations, pinpointing those that keep cement strong while emitting far less CO2 all in seconds. ​AI researchers in Switzerland have found a way to dramatically cut cement s carbon footprint …

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Massive thread of hot gas found linking galaxies — and it’s 10 times the mass of the Milky Way

Astronomers have uncovered a colossal, searing-hot filament of gas linking four galaxy clusters in the Shapley Supercluster a discovery that could finally solve the mystery of the Universe s missing matter. This giant thread, 10 times the mass of the Milky Way and stretching 23 million light-years, is one of the best confirmations yet of …

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Thinking AI models emit 50x more CO2—and often for nothing

Every query typed into a large language model (LLM), such as ChatGPT, requires energy and produces CO2 emissions. Emissions, however, depend on the model, the subject matter, and the user. Researchers have now compared 14 models and found that complex answers cause more emissions than simple answers, and that models that provide more accurate answers …

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Why falling in love with an AI isn’t laughable, it’s inevitable

It’s easy to sneer at people who say they’ve fallen in love with ChatGPT. But we’ve been developing confusing feelings for bots for decades longer than you might think, writes Alex Wilkins. With so many people feeling lonely, can that be a good thing? ​It’s easy to sneer at people who say they’ve fallen in …

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