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Tech Xplore / AI overly affirms users asking for personal advice, study finds
In a new study published in Science, Stanford computer scientists showed that artificial intelligence large language models are overly agreeable, or sycophantic, when users solicit advice on interpersonal dilemmas. Even when ...
Phys.org / AI tool can screen unknown bacteria for disease-linked genes, moving closer to preventing pandemics
PathogenFinder2 is a new AI tool developed by researchers at DTU in Denmark, in collaboration with international partners, to determine whether an unfamiliar bacterium possesses genetic characteristics associated with the ...
Phys.org / Ancient fish used their lungs to hear underwater, scientists reveal
How did ancient fish perceive their environment in the deep sea? An international team led by scientists from the Natural History Museum of Geneva (MHNG) and the University of Geneva (UNIGE) reveals that some coelacanths—fish ...
Phys.org / RNA-guided CRISPR system activates gene expression
In back-to-back studies published in Nature, researchers from Purdue University and Columbia University report a naturally evolved gene-editing system that can activate genes, offering an advantage over existing CRISPR gene-editing ...
Phys.org / Limiting space junk's threat by predicting its mess in the Earth-moon neighborhood
Debris from moonbound spacecraft has left craters on the lunar surface since the U.S. Apollo missions. But the moon is not used to being surrounded by debris. With an expected resurgence in lunar missions in the coming years, ...
Phys.org / Laser-modified graphene enables molecule-thick films to grow only where needed
Researchers from the University of Jyväskylä and Aalto University have developed a new method based on laser modification, which allows metal-organic materials to be grown locally one molecule-thick layer at a time. The method ...
Phys.org / Radio signals at the edge of extreme stars come from far beyond their surfaces
Pulsars are ultra-dense, rapidly spinning, and highly magnetized remnants of dead stars. They act like cosmic lighthouses, sending out regular pulses of radio waves and sometimes gamma rays in beams that sweep across the ...
Phys.org / Microtubules discovered to play an active role in correctly distributing chromosomes during cell division
Microtubules, the dynamic filaments that form the cell's internal scaffolding, have long been viewed as mere passive structural supports. But a new study reveals they play a far more active signaling role. The findings, published ...
Phys.org / The earliest dogs in Europe: 14,200-year-old DNA helps reveal their identity
An international team of researchers led by the Francis Crick Institute, the University of East Anglia and the Max Planck Institute for Evolutionary Anthropology has found that dogs were domesticated more than 14,000 years ...
Phys.org / Webb and Hubble share the most comprehensive view of Saturn to date
NASA's James Webb Space Telescope and Hubble Space Telescope have teamed up to capture new views of Saturn, revealing the planet in strikingly different ways. Observing in complementary wavelengths of light, the two space ...
Medical Xpress / BMI classification system wrongly identifies some people as having overweight or obesity, says study
Research from Italy to be presented at this year's European Congress on Obesity (ECO 2026, Istanbul, Türkiye, 12–15 May) and published in the journal Nutrients shows that when the gold standard technique of dual-energy X-ray ...
Medical Xpress / Study of 11,000 tumors maps 134 DNA damage signatures across 16 cancers
A team of cancer genomics scientists from The University of Manchester and The Institute of Cancer Research, London, forensically examined the genetic make-up of tumors in 16 different cancers. Their findings, which have ...
