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Medical Xpress / Immune cell 'fuel' shortages shape atherosclerosis, scientists reveal

Two complementary studies reveal how an insufficient supply of energy in macrophages, key immune cells in artery walls, drives the progression of atherosclerosis—and how this knowledge could lead to better diagnostics and ...

Dec 22, 2025 in Cardiology
Phys.org / Ancient hunter-gatherer DNA may explain why some people live to 100 years or more

Our hunter-gatherer ancestors have given us many things. They passed down mastery of fire for cooking and early survival technologies, such as stone tools. They may also have given us the secret to a long life. A new study ...

Dec 17, 2025 in Other Sciences
Medical Xpress / Locally brewed alcohol and chewing tobacco drive 62% of mouth cancer cases in India, study suggests

Even a low daily intake of alcohol—just 9 g or around one standard drink—is linked to a 50% heightened risk of mouth (buccal mucosa) cancer in India, with the greatest risk associated with locally brewed alcohol, finds ...

Dec 23, 2025 in Oncology & Cancer
Phys.org / Vast freshwater reserves found beneath salinity-stressed coastal Bangladesh

Despite its tropical climate and floodplain location, Bangladesh—one of the world's most densely populated nations—seasonally does not have enough freshwater, especially in coastal areas. Shallow groundwater is often ...

Dec 22, 2025 in Earth
Phys.org / Supermassive black holes show selective feeding habits during galaxy mergers

Black holes are notorious for gobbling up everything that comes their way, but astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have discovered that even supermassive black holes can be picky eaters, ...

Dec 22, 2025 in Astronomy & Space
Tech Xplore / Smart composite combines ceramic strength with metal flexibility for large-scale manufacturing

Since his postdoctoral days at MIT, Hang Yu, associate professor of materials science and engineering, has been wrestling with the challenge of creating a shape-memory ceramic that can be manufactured at scale without breaking. ...

Dec 23, 2025 in Engineering
Phys.org / Predictive 'mismatch' leads to novel carbon capture method

When experimental results don't match scientists' predictions, it's usually assumed that the predictions were wrong. But new research into materials that pull carbon dioxide directly from the air shows how such mismatches ...

Dec 22, 2025 in Chemistry
Phys.org / SpaceX defends airspace safety ahead of Florida Starship launch plans

With plans to launch the massive Starship from Florida next year, SpaceX defended its commitment to airspace safety after a Wall Street Journal article claimed an explosive mission in early 2025 was a greater danger to some ...

Dec 23, 2025 in Astronomy & Space
Phys.org / Urban birds' beak shape rapidly changed during COVID-19 lockdowns, suggesting human-driven transformations

When the world slowed down during the COVID-19 pandemic, its effects extended beyond humans. A recent study found that it reshaped urban ecosystems to such an extent that certain city-dwelling birds even began to develop ...

Dec 18, 2025 in Biology
Phys.org / Meet NASA's Artemis Closeout Crew, tasked with securing astronauts in their spacecraft

For most, getting into a car is a task that can be done without assistance. Yet for those whose destination is the moon, the process of getting inside and secured—in this case, in NASA's Orion spacecraft—requires help. ...

Dec 23, 2025 in Astronomy & Space
Phys.org / What contributed to the success of termites? Their genomes provide the answer

The most comprehensive dataset of termite genomes to date was created by an international team of scientists, led by researchers from the Biology Center of the Czech Academy of Sciences. The team sequenced 45 termite genomes ...

Dec 22, 2025 in Biology
Phys.org / Simulations explore Neanderthal and modern human encounters in ancient Europe

Using a specially developed simulation model, researchers at the University of Cologne have traced and analyzed the dynamics of possible encounters between Neanderthals and anatomically modern humans on the Iberian Peninsula ...

Dec 22, 2025 in Other Sciences