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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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New report reveals major risks in turning oceans into carbon sinks

8:17
Experts say the ocean could help absorb carbon dioxide, but today’s technologies are too uncertain to be scaled up safely. New findings released during COP30 highlight the risks of rushing into marine carbon removal without proper monitoring and verification. With the 1.5°C threshold approaching, researchers stress that emissions cuts must remain the top priority. Ocean-based methods may play a r…

Scientists reawaken exhausted T cells to supercharge cancer immunity

7:10
Researchers discovered a way to keep T cells from wearing out during the fight against cancer, and the approach could make immune-based treatments far more powerful. They found that tumors use a particular molecular signal to weaken T cells, and that interrupting this signal helps the cells stay active.

Quantum computers just simulated physics too complex for supercomputers

7:10
Researchers created scalable quantum circuits capable of simulating fundamental nuclear physics on more than 100 qubits. These circuits efficiently prepare complex initial states that classical computers cannot handle. The achievement demonstrates a new path toward simulating particle collisions and extreme forms of matter. It may ultimately illuminate long-standing cosmic mysteries.

Nanoscale trick makes “dark excitons” glow 300,000 times stronger

7:10
Researchers have found a way to make “dark excitons”—normally invisible quantum states of light—shine dramatically brighter by trapping them inside a tiny gold-nanotube optical cavity. This breakthrough boosts their emission 300,000-fold and allows scientists to switch and tune them with unprecedented precision. The work unlocks new possibilities for ultrafast photonics, on-chip quantum communica…

Simple molecule shows remarkable Alzheimer’s reversal in rats

17:17
Scientists have developed a new molecule that breaks down beta-amyloid plaques by binding to excess copper in the brain. The treatment restored memory and reduced inflammation in rats, while also proving non-toxic and able to cross the blood–brain barrier. Because it’s far simpler and potentially cheaper than existing drugs, researchers are now pursuing partnerships to begin human trials.

Inflammation turns bone marrow into a breeding ground for disease

17:17
Researchers discovered that chronic inflammation fundamentally remodels the bone marrow, allowing mutated stem cell clones to quietly gain dominance with age. Reprogrammed stromal cells and interferon-responsive T cells create a self-sustaining inflammatory loop that weakens blood production. Surprisingly, the mutant cells themselves may not be the main instigators.

A 2,000-year mystery in chameleon eyes is finally solved

16:06
Chameleons’ extraordinary ability to move their eyes independently stems from a previously overlooked anatomical marvel: long, tightly coiled optic nerves hidden behind their bulging eyes. Modern CT imaging finally revealed this structure, which centuries of dissections and even the scrutiny of figures like Aristotle and Newton failed to capture. The coils give the eyes extra slack, enabling near…

Scientists finally discover what’s fueling massive sargassum blooms

16:06
Massive Sargassum blooms sweeping across the Caribbean and Atlantic are fueled by a powerful nutrient partnership: phosphorus pulled to the surface by equatorial upwelling and nitrogen supplied by cyanobacteria living directly on the drifting algae. Coral cores reveal that this nutrient engine has intensified over the past decade, perfectly matching surges in Sargassum growth since 2011. By rulin…

Everyday microplastics could be fueling heart disease

16:06
Microplastics—tiny particles now found in food, water, air, and even human tissues—may directly accelerate artery-clogging disease, and new research shows the danger may be far greater for males. In mice, environmentally realistic doses of microplastics dramatically worsened plaque buildup, altered key vascular cells, and activated harmful genes linked to inflammation and atherosclerosis, all wit…

New antibody breakthrough could finally slow polycystic kidney disease

16:06
A specially engineered antibody that can infiltrate kidney cysts has shown the ability to block key growth signals driving polycystic kidney disease. Early mouse studies suggest it may halt or even reverse cyst expansion without harming healthy tissue.

Ancient bogs reveal a hidden 15,000-year climate shift

16:06
Researchers discovered that ancient peat bogs grew rapidly when the Southern Westerly Winds suddenly shifted thousands of years ago. These wind changes affected both peatland carbon storage and how the Southern Ocean absorbed CO₂. Today the winds are shifting southward again, driven by climate change. Scientists warn this could disrupt natural carbon sinks and worsen droughts and wildfires.

How to keep Ozempic/Wegovy weight loss without the nausea

19.listopadu
Scientists are uncovering how GLP-1 drugs like Ozempic and Wegovy act on brain regions that control hunger, nausea, pleasure-based eating, and thirst. These discoveries may help create treatments that keep the benefits of weight loss while reducing unwanted side effects.

Supercomputer creates the most realistic virtual brain ever

19.listopadu
Researchers have created one of the most detailed virtual mouse cortex simulations ever achieved by combining massive biological datasets with the extraordinary power of Japan’s Fugaku supercomputer. The digital brain behaves like a living system, complete with millions of neurons and tens of billions of synapses, giving scientists the ability to watch diseases like Alzheimer’s or epilepsy unfold…

Secret chemical traces reveal life on Earth 3. 3 billion years ago

19.listopadu
Researchers have discovered chemical traces of life in rocks older than 3.3 billion years, offering a rare look at Earth’s earliest biology. By combining advanced chemical methods with artificial intelligence, scientists were able to detect faint molecular patterns left behind long after the original biomolecules disappeared. Newly analyzed fossils, including ancient seaweed from Canada’s Yukon T…

Blocking one enzyme may break the link between alcohol and liver disease

18.listopadu
Scientists discovered that alcohol activates a sugar-producing pathway in the body, creating fructose that may reinforce addictive drinking. The enzyme responsible, KHK, appears to drive both alcohol cravings and liver injury. When this enzyme was blocked in mice, their drinking decreased and their livers showed far less damage.
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