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Phys.org / Shorter front-leg strides can be an early warning sign of dementia in senior dogs
Scientists have shown that the stride length of the front legs (but not the hind legs) of senior and geriatric dogs decreases as their cognitive performance worsens. In contrast, chronological age itself was a poor predictor ...
Phys.org / Organic carbon detected in Bright Angel rock formation on Mars
In September 2025, NASA announced that its Perseverance rover had discovered a potential biosignature, which is a substance or structure that might have a biological origin. A new paper, published in Science Advances, unambiguously ...
Phys.org / 'Super-puff' planets lighter than candy floss discovered by international team
An international collaboration has discovered two of the lowest-density giant planets ever detected: rare "super-puff" planets with densities lower than candy floss. The study—led by the University of Oxford, in collaboration ...
Medical Xpress / Uneven cerebellum aging may partly explain why some older adults stay mentally sharp
Scientists may have discovered a new role for the cerebellum, the part of the brain that sits at the base of the skull. A new paper published in the journal Nature Neuroscience reports that different parts of the cerebellum ...
Medical Xpress / Biomarkers could help identify ICU patients at risk of chronic critical illness
New research, published in The Journal of Immunology, identifies biomarkers of a distinct immune profile that could be used to identify patients at risk for chronic critical illness (CCI) on admission to the intensive care ...
Phys.org / Binary black hole signal probes event horizon region for first time
If, in space, no one can hear you scream, it seems that you can actually hear the sound of a crash when two black holes collide. Using the loudest gravitational wave ever heard, two Australian scientists and colleagues have ...
Phys.org / Precious drops: Spray helps crop farmers facing declining rainfall
A spray made from a biodegradable polymer capable of capturing and redirecting water to crop seeds could be the key to drought-proofing Western Australian farms.
Phys.org / Laser experiments push helium to record shock pressures
Deep inside gas giants like Jupiter and Saturn, hydrogen and helium coexist under pressures millions of times greater than Earth's atmosphere. Under those conditions, helium may separate from hydrogen and influence a planet's ...
Phys.org / Ancient proteins hint at all-female Homo naledi burial site in Rising Star cave system
Scientists have extracted and analyzed the first-ever ancient proteins from the fossils of Homo naledi, revealing a potential all-female burial site. The study, published in the journal Cell, raises the possibility that South ...
Phys.org / How longer exciton lifetimes could ease efficiency trade-off in organic solar cells
Although the efficiency of organic solar cells has now risen to more than 20%, there are physical limits that make it difficult to further increase their performance. A research team from Linköping University in Sweden, the ...
Medical Xpress / Top supplements Americans use are shifting from multivitamins to targeted health fixes
Dietary supplements are an excellent way to fill gaps in our nutritional requirements. From vitamins and macronutrients to gut-health probiotics, dietary supplements have helped people address deficiencies. In recent years, ...
Medical Xpress / AI system detects sudden cardiac death risk, identifying thousands more patients annually
Each year in the U.S., more than 300,000 people die from sudden cardiac arrest, a condition in which the heart's electrical system malfunctions without warning. The medical emergency can kill both high-risk older adults and ...