ScienceDaily |
Popis: Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution...
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Birds are more afraid of women than men. Scientists have no idea why14:50 Scientists have uncovered a strange pattern in urban bird behavior: Across five European countries and 37 species, birds consistently fled sooner when approached by women than men. Researchers have no clear explanation for the difference, raising intriguing questions about how birds recognize and respond to humans. Oxford scientists discover how viruses build themselves without a blueprint14:50 Scientists have captured virus-like particles assembling themselves step by step, revealing how a surprisingly simple process of trial and error produces complex structures with remarkable precision. The discovery uncovers a crucial molecular turning point that speeds up assembly and could lead to new ways to disrupt viruses and develop vaccines. NASA’s Curiosity rover reveals a spectacular new view of Mars with a mystery on the horizon14:50 NASA’s Curiosity rover has revealed a spectacular new view of mysterious, wind-carved cliffs on Mars that may hold evidence of ancient volcanic activity. With the rover approaching these unusual formations, scientists hope to uncover the secrets behind their strange appearance in 2027. Scientists discover a surprising secret behind the human brain’s wrinkles14:50 Scientists have discovered why common marmosets have unusually small, smooth brains despite starting development much like other primates. The secret lies in subtle changes to brain-building cells that slow neuron production, revealing new clues about how the large, folded human brain evolved. A revolutionary new microscope could reveal the hidden machinery of life14:50 Researchers have developed a revolutionary microscope that uses an incredibly powerful laser to make previously invisible cellular structures easier to see. The technology dramatically improves image clarity, allowing scientists to examine small proteins that conventional electron microscopes struggle to capture. It could eventually reveal how tiny molecular machines interact inside cells, provid… Honey bees are bullying other bees, scientists discover14:50 Honeybees are aggressively pushing wild pollinators away from flowers, with scientists documenting how they chase off rivals and dominate valuable food sources. New research warns that rising temperatures and increasing honeybee populations could intensify this competition, threatening wild bees and other important pollinators. Coffee calories have jumped nearly 40%. Sugar isn't the biggest culprit14:50 Your morning coffee may be packing more calories than you realize, and sugar isn't the biggest reason. A study of 30,000 Americans found that non-dairy creamer has overtaken sugar and milk as the leading source of added coffee calories, helping drive a nearly 40% increase between 2003 and 2018. Natural compound could fight rheumatoid arthritis at its source14:50 A natural compound extracted from a medicinal plant has shown surprising promise against rheumatoid arthritis. In rats, it reduced joint swelling, protected cartilage, and calmed the immune responses responsible for chronic inflammation. Scientists discovered that the compound works by targeting a specific protein and restoring balance to fatty acid metabolism, revealing a previously underexplore… A simple 15-minute treatment could help patients avoid carpal tunnel surgery14:50 A simple, steroid-free procedure could offer lasting relief for people struggling with carpal tunnel syndrome, potentially helping them avoid surgery. In a clinical trial involving 63 patients, researchers found that ultrasound-guided hydrodissection, which uses fluid to free a compressed nerve in the wrist, provided longer-lasting improvements in pain, numbness, and hand function than traditiona… People are taking an unapproved weight-loss drug. AI found something surprising14:50 Researchers analyzing nearly 150,000 Reddit posts uncovered unexpected symptom reports linked by users to unapproved versions of retatrutide, including increased appetite, sleep disturbances, and elevated heart rates. The findings differ from clinical trial results and highlight how AI could help identify potential drug safety signals that warrant further investigation. A rock plunged 90 kilometers into Earth and revealed something unexpected14:49 Scientists discovered a rock in Papua New Guinea that plunged more than 90 kilometers beneath Earth's surface, revealing a bizarre temperature pattern that challenges established theories of Earth's interior. The unexpected shift from unusually hot to relatively cold conditions could transform our understanding of tectonic plate movements, earthquakes, and volcanoes. A massive asteroid slammed into the North Sea and unleashed a 330-foot tsunami21.října A decades-long mystery beneath the North Sea has finally been solved. Scientists have confirmed that the Silverpit Crater, buried 700 meters below the seabed, was created when a 160-meter-wide asteroid struck Earth roughly 43 to 46 million years ago. The violent collision blasted a towering curtain of rock and water 1.5 kilometers into the air and triggered a tsunami more than 100 meters high. Just 4 minutes a day can dramatically improve strength after 6521.října A new Penn State study suggests that just four minutes of daily strength training can significantly improve mobility and physical function in older adults. After 12 weeks, participants showed meaningful gains in balance, leg strength, and their ability to stand up from a chair, all important factors for maintaining independence and reducing fall risk. Too much RNA can starve cells of energy, scientists discover21.října Scientists have uncovered an unexpected danger lurking inside cells: too much RNA can damage the structures responsible for producing energy. A new study found that excess RNA, including the normally essential messenger RNA (mRNA), can directly disrupt mitochondria without relying on the immune system. The discovery could help explain how viral infections and certain aging-related diseases damage… A train was delayed by a solar storm. But something didn't add up.21.října Scientists have cracked a 178-year-old mystery surrounding a train delayed by a solar storm, revealing that the famous incident happened in 1848 rather than 1841. The discovery rewrites the early history of space weather and highlights a threat that still endangers modern power grids, satellites, and communication systems. |