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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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Microbes that breathe rust could help save Earth’s oceans17:48 Researchers from the University of Vienna discovered MISO bacteria that use iron minerals to oxidize toxic sulfide, creating energy and producing sulfate. This biological process reshapes how scientists understand global sulfur and iron cycles. By outpacing chemical reactions, these microbes could help stop the spread of oceanic dead zones and maintain ecological balance. A simple DNA test could reveal the right antidepressant for you17:48 Millions struggle with depression and anxiety, often enduring long waits for effective treatment. Scientists in Sweden, Denmark, and Germany are developing a genetic test to predict which medications will actually work. Using polygenic risk scores, they can analyze DNA variations linked to mental health and drug response. Astronomers shocked by mysterious gas found in deep space17:48 Astronomers have discovered phosphine gas in the atmosphere of an ancient brown dwarf, Wolf 1130C, using the James Webb Space Telescope. The finding is puzzling because phosphine, a potential biosignature, has been missing from other similar objects. The detection may reveal how phosphorus behaves in low-metal environments or how stellar remnants like white dwarfs enrich their surroundings with t… Dark energy might be changing and so is the Universe17:48 New supercomputer simulations hint that dark energy might be dynamic, not constant, subtly reshaping the Universe’s structure. The findings align with recent DESI observations, offering the strongest evidence yet for an evolving cosmic force. Warm ocean beneath Saturn’s icy moon Enceladus may be perfect for life11:39 NASA’s Cassini mission has revealed surprising heat flow at Enceladus’ north pole, showing the moon releases energy from both ends. This balance of heat could allow its subsurface ocean to remain liquid for billions of years, supporting conditions for life. The study also refined estimates of ice thickness, giving scientists a clearer picture of where to search next. Meet the desert survivor that grows faster the hotter it gets11:39 In Death Valley’s relentless heat, Tidestromia oblongifolia doesn’t just survive—it thrives. Michigan State University scientists discovered that the plant can quickly adjust its photosynthetic machinery to endure extreme temperatures that would halt most species. Its cells reorganize, its genes switch on protective functions, and it even reshapes its chloroplasts to keep producing energy. The fi… 9,000-year-old ice melt shows how fast Antarctica can fall apart11:39 Around 9,000 years ago, East Antarctica went through a dramatic meltdown that was anything but isolated. Scientists have discovered that warm deep ocean water surged beneath the region’s floating ice shelves, causing them to collapse and unleashing a domino effect of ice loss across the continent. This process created a “cascading positive feedback,” where melting in one area sped up melting else… Life found in a place scientists thought impossible11:39 Deep beneath the ocean, scientists uncovered thriving microbial life in one of Earth’s harshest environments—an area with a pH of 12, where survival seems nearly impossible. Using lipid biomarkers instead of DNA, researchers revealed how these microbes persist by metabolizing methane and sulfate. The discovery not only sheds light on deep-sea carbon cycling but also suggests that life may have or… Stanford discovers an extraordinary crystal that could transform quantum tech7:49 Stanford scientists found that strontium titanate improves its performance when frozen to near absolute zero, showing extraordinary optical and mechanical behavior. Its nonlinear and piezoelectric properties make it ideal for cryogenic quantum technologies. Once overlooked, this cheap, accessible material now promises to advance lasers, computing, and space exploration alike. DNA’s hidden power could transform how we make medicines7:16 Scientists found that DNA’s phosphate groups can direct chemical reactions to make the correct mirror-image form of drug molecules. This breakthrough simplifies chiral drug production, reducing waste and energy use. Using a new “PS scanning” method, the team pinpointed which DNA parts guide reactions. The approach could revolutionize green chemistry in pharmaceuticals. Common antidepressant found to work in just two weeks7:16 Sertraline (Zoloft) may relieve emotional symptoms of depression and anxiety within two weeks, while physical side effects stabilize later. The research highlights how antidepressants can act on specific symptom networks rather than uniformly across all aspects of depression. “Really bizarre” quantum discovery defies the rules of physics7:16 Researchers have discovered quantum oscillations inside an insulating material, overturning long-held assumptions. Their work at the National Magnetic Field Laboratory suggests that the effect originates in the material’s bulk rather than its surface. The finding points toward a “new duality” in materials science—where compounds may behave as both metals and insulators—offering a fascinating puzz… DNA in seawater reveals lost hammerhead sharks7:16 A revolutionary eDNA test detects endangered hammerhead sharks using genetic traces left in seawater, eliminating the need to capture or even see them. This powerful tool could finally uncover where these elusive species still survive, and help protect them before they disappear for good. Tiny laser could transform medicine and quantum science7:16 A team at the University of Stuttgart has engineered a compact short-pulse laser that achieves up to 80% efficiency—far surpassing current models. Their new multipass design reuses light within a small crystal, combining power and precision in a palm-sized system. It opens the door to portable, cost-effective lasers for medicine, analytics, and quantum science. New laser treatment could stop blindness before it starts8.listopadu Aalto University scientists have created a laser-based treatment that uses gentle heat to stop the progression of dry macular degeneration. The approach stimulates the eye’s natural cleanup and repair systems to protect against blindness. |