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Scientists detect a surprising shift in human blood as atmospheric CO2 rises
Rising carbon dioxide in the atmosphere may be leaving a measurable imprint inside the human body. Researchers analyzing more than two decades of U.S. health …
When gut microbes run low on fiber, they may start eating you
Gut microbes need something to eat, and when fiber is limited, they may begin consuming proteins from the mucus lining that protects the gut. Researchers …
A 30-year-old fossil was hiding bones from a mysterious ancient sea monster
Fossils collected in Osaka more than 30 years ago have revealed a surprise hiding in plain sight: four previously unrecognized bones from a giant Cretaceous …
Common food preservative linked to rising suicide deaths among young people
A widely available food-preservation chemical is emerging as a disturbing factor in rising UK suicide deaths, particularly among younger people and men. Researchers say the …
A 60-year-old theory about ants, bees and wasps may be wrong
Scientists have long thought an unusual genetic system helped ants, bees, and wasps evolve their extraordinary social colonies. A massive new analysis suggests that genetics …
Scientists solve the mystery of a brain “switch” that can trigger weight …
Scientists have uncovered why two seemingly opposite ways of targeting the same brain receptor can both promote weight loss. In mice, activating the GIP receptor …
Immune cells flood into the aging brain, Stanford scientists discover
Scientists have discovered that the aging human brain may be far less isolated from the rest of the body than once believed. Stanford researchers found …
Scientists detect a nuclear reactor’s ghostly afterglow for the first time
Nuclear reactors may go dark, but their fuel continues producing a faint antineutrino “glow” long after shutdown. Researchers have now detected that residual signal for …
World’s first superconducting quantum heat engine could help unlock massive quantum computers
A tiny superconducting engine has successfully converted heat near absolute zero into useful work, demonstrating the first cyclic quantum heat engine of its kind. Future …
Taking the stairs could protect your heart and help you live longer
Simply choosing the stairs could have surprisingly big benefits for your heart and longevity. A large analysis involving more than 480,000 people found that regular …
A stress hormone may help the brain repair itself
A surprising stress-related signal may help the brain repair itself after injury. Researchers found that myelin-producing precursor cells rapidly release the stress hormone CRH near …
Women taking estrogen had fewer signs of Alzheimer’s in their brains
Women who used estrogen-only hormone therapy later in life were less likely to develop dementia and showed fewer signs of Alzheimer’s disease in their brains, …
Paleontology rocked by organic molecules found in 66-million-year-old dinosaur bones
Researchers have found strong evidence that original collagen can survive inside dinosaur fossils for tens of millions of years, overturning a long-standing assumption about fossilization. …
The Atlantic Ocean can handle more warming than expected — with one …
Scientists have found that the AMOC may be far more vulnerable to rapid warming than to temperature alone. When warming happens slowly, the ocean can …
Neptune’s tiny moons may be the wreckage of shattered ancient worlds
JWST has uncovered surprising clues that Neptune’s strange inner moons may be the wreckage of an ancient cosmic catastrophe. Researchers detected clay-like minerals on Larissa, …
A massive new cosmic map is revealing black holes, rare stars, and …
Astronomers have released more than three million new spectra in a sweeping expansion that, for the first time, brings SDSS-V optical observations to the Southern …
This common vitamin deficiency becomes far more dangerous when paired with belly …
A large study of more than 5,500 adults over 50 found a striking combination of risk factors: abdominal obesity paired with vitamin D deficiency was …
One faulty gene copy can make the heart’s DNA fold the wrong …
Researchers have discovered that a gene linked to congenital heart disease acts like an architect for the heart cell’s DNA. Losing just one copy of …
NASA’s Perseverance rover watches Earth vanish from the surface of Mars
NASA’s Perseverance rover caught a striking first from Mars: Earth disappearing behind the tiny moon Phobos. Seen from nearly 195 million miles away, our planet …
JWST spots a bizarre “black hole star” 100 billion times brighter than …
Astronomers using the James Webb Space Telescope have discovered a bizarre object from just a few hundred million years after the Big Bang that looks …
Drinking orange juice every day may change thousands of genes
Orange juice may have a much bigger effect on the body than scientists once realized. Drinking it regularly appears to influence genes tied to inflammation, …
A 236-million-year-old fossil could rewrite the story of mammalian birth
Scientists may have uncovered evidence that a mammal ancestor was giving birth to live young 236 million years ago. A fossilized cynodont showed a neonatal …
A surprising brain discovery could help explain why we overeat fatty foods
A protein inside appetite-controlling brain cells may play an important role in preventing overeating and obesity, particularly when high-fat foods are readily available. Unexpected differences …
A surprising triple treatment completely clears hiv in newborn primates
Researchers have found a striking new way to potentially eliminate HIV soon after infection using a one-time combination of three therapies. In newborn nonhuman primates …
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