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Phys.org / Torsion balances set strongest direct limits yet on ultralight dark matter

Dark matter is believed to make up a large fraction of the matter in the universe, yet its true nature remains unknown. Most past experiments have focused on heavier dark matter candidates, while much lighter dark matter, ...

12 hours ago
Phys.org / Bonobos' peaceful reputation cracks after a rival group attack leaves an infant dead

Bonobos are often described as gentle apes, generally calm primates that are seen as peacemakers in the animal kingdom. But this reputation may be coming under attack as a new study published in Scientific Reports reveals ...

17 hours ago
Phys.org / Young stars dim quickly in their X-ray output, potentially benefiting orbiting planets

Scientists have found that young stellar cousins of our sun are calming down and dimming more quickly in their X-ray output than previously thought, according to a new study using NASA's Chandra X-ray Observatory. A paper ...

8 hours ago
Phys.org / Graphene as a charge mirror: Why water droplets 'see' graphene—but don't show it

Research on graphene has made great strides in recent years. However, to fully harness its potential in applications such as desalination membranes, sensors, and energy storage and conversion, a deeper understanding of the ...

9 hours ago
Phys.org / Webb redefines the dividing line between planets and stars

Planets, like those in our solar system, form in a bottom-up process where small bits of rock and ice clump together and grow larger over time. But the heftier the planet, the harder it is to explain its formation that way.

11 hours ago
Phys.org / Saltwater is closing in on coastal groundwater, putting billions and food supplies at risk

Coastal groundwater is a key source of drinking water in many regions of the world. However, it is threatened by overabstraction and the potential for salinization. Rising sea levels are further exacerbating the situation. ...

11 hours ago
Medical Xpress / Modern lifestyles may be affecting how our bodies recycle estrogen

Our industrialized, modern lifestyles may be increasing how much estrogen (the female sex hormone) gets recycled in our bodies, according to a study published in the journal Proceedings of the National Academy of Sciences. ...

16 hours ago
Medical Xpress / Popular AI chatbots are confidently dispensing medical misinformation, analysis shows

A substantial amount of medical information provided by five popular chatbots is inaccurate and incomplete, with half (50%) of the responses problematic: 30% were somewhat, and 20% were highly problematic. These are the results ...

9 hours ago
Phys.org / Super magma reservoirs discovered beneath Tuscany

How can magma buried 5, 10, or even 15 km underground be detected without any surface indicators? The answer lies in ambient noise tomography, a technique that analyzes natural ground vibrations with high precision. A team ...

16 hours ago
Phys.org / Ph.D. student solves persistent problem in high-entropy alloys

The University of Wyoming's Lauren Kim has solved a persistent problem in the cutting-edge field of high-entropy alloys, a class of materials with great potential in modern engineering, electronics and energy applications—such ...

10 hours ago
Phys.org / Glaciers may flow into the ocean more quickly than we think

Models of glacial flow and retreat rely on estimates of glacial ice viscosity, the measure of the ice's resistance to flow. Ice viscosity is dependent on the stress applied to the glacier. Most ice sheet models use a standard ...

10 hours ago
Phys.org / Droplet impacts reveal surprising physics in shear-thickening fluids

From ketchup to quicksand, non-Newtonian fluids have long fascinated and puzzled scientists. Unlike ordinary fluids, their flow properties change depending on how much force is applied, but the precise mechanics governing ...

17 hours ago