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Popis: Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution...
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This strange material can become strong or fall apart in seconds15:07 Scientists have found that staple-shaped particles can tangle together to create a material that is both strong and flexible. Unlike conventional materials, these particles can be locked into a sturdy structure or rapidly unraveled using vibrations. The unusual behavior could open the door to recyclable buildings, reconfigurable structures, and even futuristic robotic technologies. This popular brain supplement was linked to shorter lifespans in men15:07 A large-scale study suggests that men with higher levels of the amino acid tyrosine may have shorter lifespans, potentially losing close to a year of life expectancy. The finding is especially intriguing because tyrosine is commonly associated with brain health and is often used in supplements aimed at boosting focus and performance. NASA spots giant ocean swell that could signal El Niño’s return15:07 NASA satellites have detected a vast pulse of warm water reaching the coast of South America, signaling that El Niño is likely developing. The warm water is being carried eastward by massive ocean waves known as Kelvin waves, which also cause sea levels to rise. El Niño can reshape weather patterns worldwide, bringing floods, droughts, and temperature extremes. Scientists turned red lettuce green and something surprising happened15:07 Researchers used genome editing to block the production of red pigments in lettuce, causing other beneficial plant compounds to build up instead. The lettuce continued to grow normally, pointing toward a new way to create crops with customized nutritional profiles. Millions take calcium and vitamin D for stronger bones. A major review finds little benefit15:07 For years, calcium and vitamin D supplements have been promoted as a simple way for older adults to protect their bones and prevent falls. But a massive review of nearly 154,000 people found that calcium, vitamin D, or a combination of both provided little to no meaningful protection against fractures or falls for most older adults. New GLP-1 diabetes pill delivers major weight loss and blood sugar control15:07 A new oral GLP-1 medication helped people with type 2 diabetes dramatically improve blood sugar control and lose weight in a major clinical trial. The results suggest that highly effective diabetes treatments may soon become available in a much more convenient pill form. Oxford physicists just made Schrödinger’s cat even stranger9:58 Oxford physicists have created an entirely new type of Schrödinger’s cat-like quantum state using components that are themselves highly quantum in nature. The advance could open new possibilities for more resilient quantum computers and deeper insights into the strange rules that govern the quantum universe. Honey bees have their own personal flight paths and fly them with stunning precision7:12 Researchers tracked honey bees in the wild using a drone-based system and found that each bee follows its own highly consistent flight path. Some repeated their routes so precisely that they flew only centimeters from where they had flown before. Landmarks like trees helped keep them on track, while uniform areas such as cornfields led to more variation. The secret behind smoother, better-tasting protein shakes7:12 A new whey protein manufacturing technique could make protein shakes taste better and feel smoother in the mouth. Researchers traced unwanted bitterness to concentrated minerals and found a way to remove them without sacrificing the improved texture. Beneath our feet lies a fungal superhighway stretching 68 quadrillion miles7:11 Beneath our feet lies a vast hidden fungal superhighway that helps sustain much of life on Earth—and scientists have now mapped it for the first time. Researchers estimate that these underground networks stretch an astonishing 110 quadrillion kilometers, move about 4 billion tons of carbon dioxide into soils each year, and play a major role in supporting plants and regulating the climate. Reversing prediabetes cuts risk of deadly heart problems by 58%7:11 Bringing blood sugar levels back to normal may dramatically reduce the danger posed by prediabetes. Researchers found that people who reversed prediabetes cut their risk of cardiovascular death or hospitalization for heart failure by 58% and lowered their chances of major heart problems such as heart attacks and strokes by 42%. The benefits lasted for decades and were seen across large long-term … Scientists crack a decades-old CO2 problem and triple fuel production7:11 A new catalyst design could significantly improve the conversion of CO2 into methanol, an important fuel and chemical feedstock. Researchers separated key reaction steps across different catalyst sites, avoiding a long-standing trade-off between speed and efficiency. The result was about three times more methanol production than standard commercial catalysts. A dying star could create a new universe instead of a black hole14.června What if some black holes aren’t black holes at all? A new theoretical study suggests that when a massive star collapses, it might not form a singularity hidden behind an event horizon. Instead, the collapse could trigger the birth of a tiny new universe inside the dying star. Driven by dark energy, this miniature cosmos would expand and push back against gravity, preventing complete collapse and … Scientists found a surprising problem with sugar-free diets14.června A surprising new study suggests that completely eliminating sugar may backfire. Mice on a sucrose-free low-fat diet showed worse blood sugar control, increased inflammation, disrupted gut bacteria, and signs of fatty liver compared with mice that consumed some sucrose. Researchers say the results highlight the importance of a balanced diet and a healthy gut microbiome rather than focusing solely … People taking GLP-1 weight loss drugs like Ozempic started moving less14.června People taking popular weight-loss drugs such as Ozempic, Wegovy, Mounjaro, and Zepbound may be losing pounds, but they could also be moving less. Researchers analyzing Fitbit data found that daily step counts and exercise levels dropped after people started these medications, despite successful weight loss. Because the drugs can reduce muscle mass along with fat, the decline in physical activity … |