ScienceDaily |
Popis: Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution...
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Scientists accidentally discover DNA that breaks the rules of life9:55 A routine experiment with a new single-cell DNA sequencing method turned into a surprising scientific twist when researchers stumbled upon a bizarre genetic code in a microscopic pond organism. Instead of following the near-universal “rules” of life, this newly identified protist rewrites how genes signal their end. This unexpected discovery challenges long-held assumptions about how genetic tran… People once risked everything just to keep their hats on9:55 Centuries ago in England, hats weren’t just accessories—they were statements of power and rebellion. Refusing to remove a hat could challenge authority, even in courtrooms and before kings. People valued their hats so deeply that robbery victims sometimes begged to keep them over money. In a world where going bareheaded signaled poverty or madness, hats shaped identity, respect, and even family d… Your DNA may predict your future success more than your upbringing9:55 A new twin study suggests your genes may play a bigger role in your future success than your upbringing. Researchers found that IQ, which is largely genetically influenced, strongly predicts education, career, and income. Even twins raised in the same household diverged based on genetic differences. The findings hint that life outcomes may be more hardwired than many people expect. This town found clean energy deep inside old coal mines5:09 Cumberland, B.C. is reimagining its coal mining past as a clean energy opportunity. Water trapped in abandoned mine tunnels could be used in a geothermal system to heat and cool buildings efficiently and with minimal emissions. The project could lower energy costs, support new development, and attract businesses. It’s a striking example of turning industrial leftovers into a sustainable community… Scientists finally solve 40-year-old physics puzzle about how things grow5:09 In a major breakthrough, scientists have experimentally confirmed a universal growth law in two dimensions using a quantum system of fleeting light–matter particles. The finding strengthens the idea that wildly different processes—from crystals to living systems—may all follow the same hidden rules. Scientists reverse diabetes in mice with lab-grown insulin cells5:09 Scientists in Sweden have taken a major step toward a potential cure for type 1 diabetes by developing a more reliable way to create insulin-producing cells from human stem cells. These lab-grown cells not only respond strongly to glucose but were also able to restore blood sugar control when transplanted into diabetic mice. NASA captures wild swirling clouds and rare arctic storm over Alaska5:09 Southern Alaska’s winter finale delivered a spectacular atmospheric display, captured by a NASA satellite. Cold Arctic air flowing over warmer ocean waters created long bands of clouds, swirling vortex patterns, and even a compact polar storm with powerful winds. As the air traveled offshore, it evolved into increasingly complex cloud formations. The result was a dramatic, ever-changing sky that … NASA just tested a powerful new thruster that could send humans to Mars5:09 A powerful new electromagnetic thruster has taken a major step forward after a successful high-energy test at NASA’s Jet Propulsion Laboratory. Fueled by lithium vapor and driven by intense magnetic forces, the experimental engine reached record-breaking power levels—far beyond anything currently used in space. Glowing hotter than molten lava and firing inside a specialized vacuum chamber, the th… Blue Origin’s new moon lander just survived extreme space testing on Earth5:08 A bold step toward returning humans to the Moon is underway with Blue Origin’s uncrewed MK1 “Endurance” lander, designed to test the technologies that future astronauts will rely on. Built in partnership with NASA, the mission will showcase precision landing, autonomous navigation, and advanced cryogenic propulsion—key capabilities for operating on the lunar surface. It will also carry cutting-ed… MIT scientists discover millions of “silent synapses” in the adult brain5:08 MIT neuroscientists have uncovered a surprising secret hidden in the adult brain: millions of “silent synapses,” dormant connections that lie in wait until new learning calls them into action. Once thought to exist only in early development, these inactive links make up about 30% of synapses in the adult cortex and can be rapidly activated to form fresh memories. New AI method tackles one of science’s hardest math problems6.května Penn researchers have developed a smarter AI method for solving notoriously difficult inverse equations, which help scientists uncover hidden causes behind observable effects. By introducing “mollifier layers” that smooth noisy data, they’ve made these calculations more stable and far less computationally demanding. This could transform fields like genetics, where understanding how DNA behaves is… Colon cancer breakthrough keeps patients cancer-free for nearly 3 years6.května A short burst of immunotherapy before surgery is delivering surprisingly powerful results for a specific type of colorectal cancer. Patients in a UK-led trial who received just nine weeks of pembrolizumab prior to surgery have remained cancer-free nearly three years later—an outcome that challenges the standard approach of surgery followed by months of chemotherapy. Common knee surgery found ineffective, may make things worse6.května A major 10-year clinical trial is turning one of the world’s most common knee surgeries on its head. Researchers found that trimming a damaged meniscus—a procedure long believed to relieve pain—offers no real benefit over placebo surgery. Even more surprising, patients who had the operation actually fared worse over time, with more symptoms, poorer function, faster progression of osteoarthritis, … 240-million-year-old giant “sand creeper” found hidden in retaining wall6.května A forgotten fossil hidden inside a garden wall has turned out to be one of Australia’s most remarkable prehistoric discoveries. Scientists have now identified the 240-million-year-old amphibian, Arenaerpeton supinatus, revealing an almost perfectly preserved skeleton—complete with rare traces of skin. This ancient river predator, about 1.2 meters long, looked somewhat like a giant salamander but … This common sleep habit could double your risk of heart attack6.května A chaotic sleep schedule in your 40s might be quietly setting the stage for heart trouble later. Researchers tracking thousands of people for over a decade found that those with highly inconsistent bedtimes—especially when they slept less than eight hours—faced about double the risk of serious cardiovascular events like heart attacks or strokes. Interestingly, it wasn’t when people woke up that m… |