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Dialog / Why do some stars in the galactic center survive while others are destroyed?
The center of our galaxy is an extreme place. Surrounding the supermassive black hole Sagittarius A*, stars are packed densely into a region where gravity, radiation, and dark matter all interact in complex ways. It is a ...
Medical Xpress / Low-frequency wireless sensor tracks artery stiffening in real time with less interference
Wireless sensors used in wearable smart devices and medical equipment must be capable of detecting minute changes while maintaining high operational stability. However, existing technologies often utilize excessively high ...
Phys.org / Tiny crystal defects solve decades-old mystery in organic light emitters
Materials that emit and manipulate light are at the heart of technologies ranging from solar energy to advanced imaging systems. But even in well-studied materials, some fundamental behaviors remain unexplained. Researchers ...
Medical Xpress / A new heart failure pacing option may reduce repeat surgeries and shorten implant procedures
Left bundle branch area pacing is an effective and practical strategy for cardiac resynchronization, according to a late-breaking science presentation at EHRA 2026, the annual congress of the European Heart Rhythm Association ...
Medical Xpress / Fluoride and kids' IQ: What a decades-long analysis shows
Fluoride is a naturally occurring mineral that has been shown to strengthen teeth and reduce cavities. Many municipalities add fluoride to their drinking water—a process called community water fluoridation—as a public health ...
Phys.org / From ship wakes to soft tissues: Exploring fluid and solid surface-wave physics
A new study by scientists in the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) shows that when a pressure disturbance moves across an ultrasoft elastic material, such as a gel or a biological tissue, ...
Phys.org / Satellites reveal city methane emissions are rising faster than official estimates
Urban emissions of methane—a potent greenhouse gas—are rising faster than bottom-up accounting estimates anticipated, according to a study led by University of Michigan Engineering. The discrepancy was found with satellite ...
Phys.org / Protein clusters reshape cell movement and may help cells build amino acids faster
Cells can be thought of as cities, with factories, a transport system, and lots of building activity. An international team led by scientists at the University of Groningen studied cells growing under different conditions ...
Phys.org / Video shows that sunbirds suck, while hummingbirds don't
Two unrelated groups of nectar eaters, hummingbirds and sunbirds, have evolved different techniques to slurp the sweet liquid from flowers. The tongue suctioning employed by sunbirds is unique among vertebrates, according ...
Phys.org / Quantum sensors get a precision boost as 2D defects reveal their hidden timing
A key factor for the performance of sensors is the speed at which the system returns to its initial state after a disturbance or measurement, similar to the taring of a balance. In the quantum sensor under investigation, ...
Phys.org / New research on cellular redox reactions sheds light on the path of neurodegenerative diseases
The mechanics of the onset of cancer or neurodegenerative disorders like Alzheimer's disease or ALS remain a mystery. Scientists associate these diseases with an increase in unstable molecules called reactive oxygen species ...
Phys.org / Lost seal of Edward the Confessor resurfaces after going missing for 40 years
An 11th-century Anglo-Saxon seal belonging to Edward the Confessor has been rediscovered more than 40 years after being declared lost. The wax impression of the "Saint-Denis seal" disappeared without official explanation ...
