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ScienceDaily

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Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution...

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https://www.sciencedaily.com

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Technology → Science

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11,5 položek/den

Scientists uncover oxygen-loving ancestor of all complex life

7:21
For decades, scientists have believed that complex life began when two very different microbes joined forces, eventually giving rise to plants, animals, and fungi. But one major puzzle remained: how could these organisms have met if one depended on oxygen and the other supposedly lived without it? New research suggests the answer lies in ancient microbes called Asgard archaea.

Scientists find cancer-linked chemicals in popular hair extensions

7:21
A sweeping new study has uncovered a troubling mix of hazardous chemicals in popular hair extensions, including products made from human hair. Researchers detected dozens of substances linked to cancer, hormone disruption, reproductive harm, and immune system effects in nearly every sample tested. Some products contained flame retardants, organotins, and chemicals associated with increased breast…

Giant virus discovery could rewrite the origin of complex life

7:21
A giant virus discovered in Japan is adding fuel to the provocative idea that viruses helped create complex life. Named ushikuvirus, it infects amoebae and shows unique traits that connect different families of giant DNA viruses. Its unusual way of hijacking and disrupting the host cell’s nucleus offers fresh insight into how viruses may have influenced the evolution of the cell nucleus itself. T…

Scientists discover the body’s hidden “off switch” for inflammation

16:28
A new human study has uncovered how the body naturally turns off inflammation. Researchers found that fat-derived molecules called epoxy-oxylipins rein in immune cells that can otherwise drive chronic disease. Using a drug to boost these molecules reduced pain faster and lowered harmful inflammatory cells. The discovery could pave the way for safer treatments for arthritis, heart disease, and oth…

Atom-sized gates could transform DNA sequencing and neuromorphic computing

16:28
Scientists have taken a major step toward mimicking nature’s tiniest gateways by creating ultra-small pores that rival the dimensions of biological ion channels—just a few atoms wide. The breakthrough opens new possibilities for single-molecule sensing, neuromorphic computing, and studying how matter behaves in spaces barely larger than atoms.

Scientists discover gene that could save bananas from deadly Panama disease

16:28
A major breakthrough could help save the world’s bananas from a devastating disease. Scientists have discovered the exact genetic region in a wild banana that provides resistance to Fusarium wilt Subtropical Race 4 — a destructive strain that threatens Cavendish bananas worldwide. While this wild banana isn’t edible, the discovery gives breeders a powerful genetic roadmap to develop future banana…

Scientists finally explain why chronic constipation treatments often fail

15:16
A newly discovered bacterial duo may be the hidden cause of chronic constipation. The two microbes break down the colon’s protective mucus layer, leaving stool dry and hard — a problem traditional laxatives don’t fix. Parkinson’s patients, who often struggle with constipation years before tremors appear, have higher levels of these bacteria. Blocking the bacteria’s mucus-destroying enzyme prevent…

Brain development may continue into your 30s, new research shows

15:16
That viral claim that your frontal lobe “isn’t fully developed until 25” turns out to be more myth than milestone. Early brain scans showed that gray matter changes dramatically through the teen years, and because studies stopped around age 20, scientists estimated development might wrap up in the mid-20s. But newer, massive brain-imaging research paints a different picture: key wiring and networ…

Ancient DNA solves 5,500 year old burial mystery in Sweden

15:16
Ancient DNA from a Stone Age burial site in Sweden shows that families 5,500 years ago were more complex than expected. Many individuals buried together were not immediate family, but second- or third-degree relatives. One grave held a young woman alongside two children who were siblings—yet she wasn’t their mother. The discoveries hint at tight-knit communities where extended kin mattered deeply.

The nearsightedness explosion may be fueled by dim indoor light, not just screens

15:16
Myopia is skyrocketing around the world, often blamed on endless screen time — but new research suggests the real culprit may be something more subtle. Scientists at SUNY College of Optometry propose that it’s not just devices, but the combination of prolonged close-up focus and dim indoor lighting that may quietly strain the eyes. When we concentrate on nearby objects in low light, our pupils co…

New map reveals where lethal scorpions are most likely to strike

19.února
Scientists have developed a powerful new way to forecast where some of the world’s most dangerous scorpions are likely to be found. By combining fieldwork in Africa with advanced computer modeling, the team discovered that soil type is the strongest factor shaping where many lethal species live, while temperature patterns also play a key role.

AI breakthrough could replace rare earth magnets in electric vehicles

19.února
Scientists at the University of New Hampshire have unleashed artificial intelligence to dramatically speed up the hunt for next-generation magnetic materials. By building a massive, searchable database of 67,573 magnetic compounds — including 25 newly recognized materials that stay magnetic even at high temperatures — the team is opening the door to cheaper, more sustainable technologies.

New sodium ion battery stores twice the energy and desalinates seawater

19.února
A surprising breakthrough could help sodium-ion batteries rival lithium—and even turn seawater into drinking water. Scientists discovered that keeping water inside a key battery material, instead of removing it as traditionally done, dramatically boosts performance. The “wet” version stores nearly twice as much charge, charges faster, and remains stable for hundreds of cycles, placing it among th…

Ancient drought may have wiped out the real-life hobbits 61,000 years ago

19.února
A massive, centuries-long drought may have driven the extinction of the “hobbits” of Flores. Climate records preserved in cave formations show rainfall plummeted just as the small human species disappeared. At the same time, pygmy elephants they depended on declined sharply as rivers dried up. With food and water vanishing, the hobbits may have been pushed out—and into their final chapter.

Sugary drinks linked to rising anxiety in teens

18.února
Sugary drinks may be linked to more than just physical health problems in teens. A new review of multiple studies found a consistent association between high consumption of beverages like soda, energy drinks, sweetened juices, and flavored milks and increased anxiety symptoms in adolescents.
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