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Phys.org / Supercomputer simulations reveal rotation drives chemical mixing in red giant stars

Advances in supercomputing have made solving a long‐standing astronomical conundrum possible: How can we explain the changes in the chemical composition at the surface of red giant stars as they evolve?

17 hours ago in Astronomy & Space
Medical Xpress / Why nighttime heat drives a surge in suicide-related calls to crisis lines in Louisiana

Extreme heat poses serious risks to physical health but can also trigger a mental health emergency for some people. While the link between heat and suicide is well-documented, the specific stressors that drive someone to ...

22 hours ago in Psychology & Psychiatry
Medical Xpress / Newly found immune cells link strep throat to psoriasis

A common strep throat infection can trigger guttate psoriasis by altering the behavior of key immune cells, according to a new study from Karolinska Institutet published in eBioMedicine. The findings suggest how an infection ...

17 hours ago in Immunology
Phys.org / New generation of climate models sheds first light on long-standing Pacific puzzle

Researchers have long been puzzled by the observed cooling of the eastern tropical Pacific and the Southern Ocean accompanying global warming. Existing climate models have failed to capture this pattern. At the Max Planck ...

21 hours ago in Earth
Tech Xplore / AI 'blind spot' could allow attackers to hijack self-driving vehicles

A newly discovered vulnerability could allow cybercriminals to silently hijack the artificial intelligence (AI) systems in self-driving cars, raising concerns about the security of autonomous systems increasingly used on ...

19 hours ago in Security
Phys.org / REGALADE: The most extensive catalog of galaxies for modern astronomy

An international team of scientists led by the Institute of Cosmos Sciences at the University of Barcelona (ICCUB) and the Institute of Space Studies of Catalonia (IEEC) has presented REGALADE, an unprecedented catalog covering ...

20 hours ago in Astronomy & Space
Phys.org / 3D method can accurately measure gravity in wide binary stars, as demonstrated by pilot study

Since the third Gaia data release in 2022, wide binary stars with separation greater than several thousand astronomical units have been intensely investigated across the world, to probe the nature of gravity in the low acceleration ...

20 hours ago in Astronomy & Space
Phys.org / 'All-in-one,' single-atom could power both sides of water splitting

Green hydrogen production technology, which utilizes renewable energy to produce eco-friendly hydrogen without carbon emissions, is gaining attention as a core technology for addressing global warming. Green hydrogen is produced ...

21 hours ago in Chemistry
Phys.org / A survival strategy inside stressed cells: Ribosomes in pairs

Ribosomes, the cell's protein-making factories, consume large amounts of energy as they build the proteins that keep cells alive and functioning. When cells experience stress—such as lack of nutrients or sudden drops in ...

18 hours ago in Biology
Medical Xpress / Why chronic pain lasts longer in women: Immune cells offer clues

Chronic pain lasts longer for women than men, and new research suggests differences in hormone-regulated immune cells, called monocytes, may help explain why.

20 hours ago in Neuroscience
Phys.org / How choices made by crowds in a train station are guided by strangers

In crowds, most people are strangers to you, and everyone else for that matter. However, until now, the effect of stranger-to-stranger interactions on the choices people make in crowds has not been properly examined. Ziqi ...

20 hours ago in Other Sciences
Phys.org / Impact-formed glass provides evidence of cosmic collision in Brazil about 6 million years ago

For the first time in Brazil, researchers have identified a field of tektites. These are natural glasses formed by the high-energy impact of extraterrestrial bodies against Earth's surface. These structures, named geraisites ...

20 hours ago in Astronomy & Space