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Phys.org / Failed supernova provides clearest view yet of a star collapsing into a black hole
Astronomers have watched a dying star fail to explode as a supernova, instead collapsing into a black hole. The remarkable sighting is the most complete observational record ever made of a star's transformation into a black ...
Phys.org / Extreme rainfall is worsening algal blooms along South Korea's coast
Extreme rainfall is reshaping coastal waters along South Korea's shoreline, flushing nutrients from land into the sea and fueling the growth of algal blooms. A new multi-year study, published in Frontiers in Marine Science, ...
Phys.org / Only humans have chins: Study shows it's an evolutionary accident
Dashiell Hammett mentioned Sam Spade's jutting chin in the opening sentence of his novel, "The Maltese Falcon." Spade's chin was among the facial features Hammett used to describe his fictional detective's appearance, but ...
Phys.org / Scientists uncover Iron Age origins of Vietnamese tooth blackening practices
Not everyone wants their teeth to be white and gleaming. Tooth blackening is a recognized part of modern Vietnamese culture, and a recent discovery hints that the roots of this practice may stretch all the way back to the ...
Tech Xplore / LLMs violate boundaries during mental health dialogues, study finds
Artificial intelligence (AI) agents, particularly those based on large language models (LLMs) like the conversational platform ChatGPT, are now widely used daily by numerous people worldwide. LLMs can generate texts that ...
Phys.org / Replacing humans with machines is leaving truckloads of food stranded and unusable
Supermarket shelves can look full despite the food systems underneath them being under strain. Fruit may be stacked neatly, chilled meat may be in place. It appears that supply chains are functioning well. But appearances ...
Medical Xpress / Destructive meningitis cases raise concerns about emerging pathogen
Penn State College of Medicine is reporting on two cases of destructive infant meningitis linked to Paenibacillus infection, documenting severe neurologic injury and raising concerns about diagnosis and treatment. Reports ...
Phys.org / Time crystals could become accurate and efficient timekeepers
Time crystals could one day provide a reliable foundation for ultra-precise quantum clocks, new mathematical analysis has revealed. Published in Physical Review Letters, the research was led by Ludmila Viotti at the Abdus ...
Phys.org / Antarctic ice melt can change global ocean circulation, sediment cores suggest
A new study shows that during the last two deglaciations, i.e., the transition from an ice age to the warm interglacial periods, meltwater from the Antarctic ice sheet intensified stratification in the Southern Ocean. The ...
Phys.org / How Indigenous ideas about nonlinear time can help us navigate ecological crises
It is common to think of time as moving in only one direction—from point A, through point B, to point C.
Phys.org / Arctic peatlands are expanding as temperatures continue to rise, new research confirms
The Arctic is warming faster than the rest of the planet, with average temperatures increasing by about 4°C in the last four decades. A new study, led by the University of Exeter, shows peatlands have expanded since 1950, ...
Medical Xpress / Common anti-seizure drug prevents Alzheimer's plaques from forming, study shows
While physicians and scientists have long known that Alzheimer's disease involves the buildup of toxic protein fragments in the brain, they have struggled to understand how these harmful fragments are produced. Now, in a ...
