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Tech Xplore / Exposing biases, moods, personalities and abstract concepts hidden in large language models

By now, ChatGPT, Claude, and other large language models have accumulated so much human knowledge that they're far from simple answer-generators; they can also express abstract concepts, such as certain tones, personalities, ...

Feb 19, 2026 in Computer Sciences
Phys.org / Flickering glacial climate may have shaped early human evolution

Researchers have identified a "tipping point" about 2.7 million years ago when global climate conditions switched from being relatively warm and stable to cold and chaotic, as continental ice sheets expanded in the Northern ...

Feb 19, 2026 in Earth
Phys.org / NASA moves forward with Artemis II tanking test that could set up moonshot mission

NASA is set to begin fueling 700,000 gallons of cryogenic propellant on the Space Launch System rocket at Kennedy Space Center on Thursday as it moves ahead with a test countdown of the Artemis II mission.

Feb 20, 2026 in Astronomy & Space
Phys.org / AI system TongGeometry generates and solves olympiad-level geometry problems

The International Mathematical Olympiad (IMO) is a prestigious competition featuring talented high school students from around the world, in which competitors solve complicated mathematical problems. Geometry problems from ...

Feb 17, 2026 in Other Sciences
Medical Xpress / Household cat could hold the key to understanding breast cancer

The first study of multiple cancer types in cats has identified genetic changes that could help treat the condition in humans and animals. By analyzing different types of tumors from almost 500 pet cats across five countries, ...

Feb 19, 2026 in Oncology & Cancer
Phys.org / Largest ever radio sky survey maps the universe in unprecedented detail

An international collaboration using the Low Frequency Array (LOFAR) has published an exceptionally detailed radio sky map, revealing 13.7 million cosmic sources and delivering the most complete census yet of actively growing ...

Feb 19, 2026 in Astronomy & Space
Phys.org / New AI framework reveals chemistry driving high-conductivity lithium-ion electrolytes

A new artificial intelligence framework developed at Cornell can accurately predict the performance of battery electrolytes while revealing the chemical principles that govern them, providing engineers with a new tool for ...

Feb 19, 2026 in Chemistry
Medical Xpress / Will probiotics work for you? Models map gut metabolism to predict success

A new study demonstrates that computer models of gut metabolism can predict which probiotics will successfully establish themselves in a person's gut and how different prebiotics affect production of health-promoting short-chain ...

Feb 19, 2026 in Health
Medical Xpress / Second pregnancy uniquely alters the female brain, study shows

Researchers at Amsterdam UMC have discovered that a second pregnancy alters the female brain. Previous research from the same group had already demonstrated the impact of a first pregnancy on the female brain. The new results ...

Feb 19, 2026 in Obstetrics & gynaecology
Tech Xplore / Robot hand approaches human-like dexterity with new visual-tactile training

Human hands are a wonder of nature and unmatched in the animal kingdom. They can twist caps, flick switches, handle tiny objects with ease, and perform thousands of tasks every day. Robot hands struggle to keep up. They typically ...

Feb 17, 2026 in Robotics
Medical Xpress / Kirigami-inspired sensors precisely map activity of neurons in the primate brain

Recent technological advances have opened new exciting possibilities for the development of smart prosthetics, such as artificial limbs, joints or organs that can replace injured, damaged or amputated body parts. These same ...

Feb 18, 2026 in Neuroscience
Phys.org / Social pressure forces baby clownfish to lose their bars faster, study shows

Growing up, you probably changed your style based on your social influences. It turns out, such pressures affect the appearance of young clownfish (anemonefish) too. A new study from the Okinawa Institute of Science and Technology ...

Feb 19, 2026 in Biology