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Tech Xplore / Misbehaving chatbots could be kept in check with personality tests
Artificial intelligence chatbots need to work on their social judgment, recent events suggest. At one end of the spectrum, they're facing lawsuits for recommending dangerous actions. At the other end, the models can be so ...
Phys.org / Q&A: Ancient bird species found in China's Liaoning had extra-long tail feathers for elaborate courtship
A recently discovered extinct bird from the early Cretaceous Period (approximately 121 million years ago) may have waggled its long tail feathers to attract mates, according to a study published May 27, 2026 in the open-access ...
Medical Xpress / How a remarkable trial on bedrest during the Korean War led to evidence‑based medicine
In 1959, a young doctor named David Sackett stumbled on a clinical trial that would change his life—and most of ours. The study showed that conventional wisdom on bed rest in medicine was wrong. And it helped lead Sackett ...
Medical Xpress / High-puff e-cigarettes may become more toxic with use, researchers warn
A University of California, Riverside-led study has found that heavily used high-puff electronic cigarettes may contain higher levels of harmful chemicals than fresh e-cigarettes, raising concerns about potential health risks ...
Phys.org / Mineral clues in Gale Crater track ancient Mars climate change
While NASA imagery has shown evidence of ancient rivers and lakes on Mars that transitioned to dry dunes, uncertainty remains over the timing of the environmental changes that may have contributed to these shifts.
Phys.org / New ammonia-making method could upend one of industry's dirtiest processes
As our world's population grows, so does the demand for ammonia—a key ingredient in fertilizer. The International Renewable Energy Agency estimates that ammonia production must quadruple by 2050 to feed the increase in global ...
Dialog / New fossil salamander species related to the famous axolotl is discovered in Mexico
The Mexican axolotl (Ambystoma mexicanum) is famous because adults look like overgrown babies, or tadpoles, retaining juvenile features as adults and capable of remarkable regeneration of lost limbs or tails. New studies ...
Medical Xpress / Scientists uncover how Alzheimer's may quietly begin years before memory loss appears
A new Columbia study has found clues of Alzheimer's beginnings, revealing how tau filaments—protein clumps that are closely linked to memory decline in Alzheimer's disease—get their start. The finding raises the prospect ...
Phys.org / Divers may think they protect reefs, but one unseen habit is taking a steady toll
Research at the University of Sydney has found that scuba-diving tourism—widely promoted as a sustainable way to experience coral reefs—is causing frequent and often hidden damage to fragile marine ecosystems.
Phys.org / Blue Origin rocket explosion is bad news for both Bezos and NASA
Space exploration is filled with setbacks, but the spectacular explosion of Blue Origin's New Glenn rocket on Thursday night marked a significant blow to not only the company, which was founded by billionaire Jeff Bezos, ...
Phys.org / Forever chemical reaches fish before they even hatch, new study reveals
There is a forever chemical lurking in the world's oceans that could be fundamentally altering the biology of marine life before it even hatches. PFOS, a notorious member of the PFAS family of chemicals, is known for its ...
Medical Xpress / Researchers uncover a substantial genetic component to postpartum psychosis
Researchers at the Icahn School of Medicine at Mount Sinai have uncovered a substantial genetic component to postpartum psychosis, a rare but severe psychiatric illness that occurs in the days to weeks after childbirth. The ...
