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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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Scientists built a camera that can track invisible particles in 3D11:01 A new particle detector called PLATON could replace millions of tiny detector components with a single block of light-producing material. Using a light-field camera, highly sensitive photon sensors, and AI, it reconstructs particle paths in fast, detailed 3D. Simulations suggest it could match or surpass today’s best detectors while being far easier to scale. The technology may also lead to sharp… Scientists tested 39 sweeteners and found unexpected gut effects11:01 A large laboratory study found that many commonly used sweeteners can directly change the growth of gut bacteria. Researchers identified more than 100 cases in which sweeteners behaved differently when combined with medications, caffeine, or flavorings. The combination of isosteviol and the antidepressant duloxetine was especially disruptive, reducing beneficial bacteria and overall microbial div… New “living plastic” self-destructs in just 6 days without leaving microplastics11:01 Researchers have created self-destructing living plastic that uses engineered bacteria to completely break itself down when activated. The material degrades in just six days without creating microplastics, offering a potential new solution for single-use plastic waste. This sugar-coated therapy boosted survival against deadly brain cancer by 50% in mice11:01 A new experimental treatment may have found a way to outsmart glioblastoma’s toughest defense: the blood-brain barrier. Researchers used sugar-coated nanoparticles to ferry genetic instructions that restore a key tumor-suppressing protein directly into brain cancer cells. In mouse studies, the therapy increased median survival by 50% while shrinking tumors without noticeable damage to other organ… Sun-like star caught after eating one of its own planets11:01 A distant Sun-like star appears to have devoured one of its planets, leaving behind a surprising chemical fingerprint. Researchers found an unusually high concentration of lithium, a strong sign that planetary material was mixed into the star. Careful comparisons with dozens of similar stars confirmed the signal is highly unusual, and scientists think a massive brown dwarf companion may have help… Earth has a natural thermostat and scientists finally know how it works11:01 Scientists have identified a hidden feedback loop that may explain how Earth has regulated its climate for tens of millions of years. As sea levels rose and fell, they changed how much phosphate reached the open ocean, affecting marine life and the amount of carbon buried beneath the seafloor. That burial removed carbon dioxide from the atmosphere, helping cool the planet. AI flags more than 250,000 suspicious cancer research papers11:01 A powerful new AI tool has uncovered what could be one of the biggest integrity problems in modern science. After analyzing 2.6 million cancer research papers published between 1999 and 2024, researchers identified more than 250,000 studies with writing patterns resembling papers suspected of being produced by fraudulent "paper mills." This ancient sea worm has “bio-metal” jaws unlike anything scientists have seen11:01 An ancient sea worm may hold the secret to a whole new category of natural materials. Its jaws combine proteins and metal ions in a way that gives them metal-like strength and unusual mechanical behavior, yet they still differ from traditional metals. Researchers believe these "bio-metals" could open new directions in materials science while revealing just how sophisticated nature's designs can b… This drug could help millions keep their kidneys working longer11:01 An international study found that finerenone slows kidney function decline and reduces the risk of serious kidney and cardiovascular complications in people with chronic kidney disease who do not have diabetes. The results could open the door to a much-needed new treatment option for the majority of CKD patients who have long had limited choices. Scientists finally solved how a common gut bacterium triggers colon cancer16.července Researchers solved a long-standing mystery behind how a bacterial toxin associated with colorectal cancer damages the colon. The toxin first binds to a receptor called claudin-4, giving it access to attack the cells' protective barrier. After identifying this weak point, the team designed a decoy protein that successfully blocked the toxin in mice. The discovery could pave the way for new therapi… More than 400 sick as CDC searches for the source of a mystery outbreak16.července A growing Cyclospora outbreak has sickened more than 400 people in four states, and investigators are still searching for the contaminated food responsible. The CDC warns the actual number of cases is likely much higher and urges anyone with symptoms to seek medical care. Quantum breakthrough links light and magnetism in atomically thin materials16.července A new review highlights exciting progress in atomically thin quantum materials where light and magnetism work together in ways never before possible. In these materials, light-generated excitons can interact directly with magnetic behavior, creating opportunities to control magnetic states using light alone. Scientists believe this could pave the way for advanced optical memory, quantum devices, … Common constipation drug may help clear depression brain fog16.července An existing constipation drug may have an unexpected new use: helping clear the "brain fog" that often lingers after depression. In a small clinical trial, people with a history of depression who took the medication prucalopride for about a week performed better on tests of memory, attention, and thinking speed than those who received a placebo. The drug targets a serotonin receptor found in both… NASA's James Webb Space Telescope reveals a strange atmosphere on a hellish lava planet16.července NASA's James Webb Space Telescope has revealed new details about the blistering lava planet 55 Cancri e, where temperatures are high enough to melt rock. The data indicate the planet likely has a hydrogen-rich atmosphere shaped by gases escaping from its molten interior, with signs that volcanic outgassing may even create temporary clouds. The hidden skeleton “gatekeeper” inside brain cells could help fight Alzheimer's15.července Researchers have discovered that a microscopic skeleton inside neurons does much more than hold cells together. It acts as a gatekeeper that controls what brain cells absorb and when they absorb it. When this protective structure weakens, neurons rapidly take in harmful proteins associated with Alzheimer's disease, suggesting that stabilizing it could become a promising new strategy for preventin… |