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Phys.org / Pompeii's battle scars linked to an ancient 'machine gun'

The ancient city of Pompeii is one of those archaeological sites that keeps on giving with one discovery after another. While much of what we know about the Roman settlement comes from the eruption of Vesuvius in AD 79, another ...

13 hours ago
Tech Xplore / Humanoid robot learns impressive tennis skills from imperfect human motion

Roboticists have struggled to get humanoid robots to effectively replicate athletic sports skills, such as those needed for tennis. These sports require highly dynamic motion, quick reactions, and high precision that robots ...

15 hours ago
Phys.org / The discovery of a buried delta on Mars could boost the search for life

There's more evidence that water once flowed on Mars with the discovery of an ancient river delta deep below the surface. NASA's Perseverance rover found it more than 35 meters beneath Jezero Crater using ground-penetrating ...

17 hours ago
Medical Xpress / Largest study of its kind tests hydration strategy for kidney stones

Kidney stones can cause some of the most intense pain people ever experience, affecting daily life and leading many to hospital emergency visits. It affects one in 11 people in the U.S., and almost half will experience a ...

9 hours ago
Medical Xpress / Tracking sleep with an app? Why insomnia sufferers may feel worse, not better

The increasing availability of sleep monitoring apps, and rising interest in sleep health, has led to a sharp increase in people tracking their rest. But these apps might not give people an accurate image of their sleep, ...

3 hours ago
Phys.org / The Yamna reused sacred spaces in the north Pontic Steppe, study suggests

According to an article published in Antiquity by Dr. Svitlana Ivanova and her colleagues, the Yamna culture's repurposing of older ritual spaces reflects a deliberate appropriation and continuation of sacred spaces. A case ...

18 hours ago
Phys.org / 'Miracle': Europe reconnects with lost spacecraft

The European Space Agency announced Thursday it has re-established communication with a spacecraft that is part of its Proba-3 mission, after losing contact with the satellite a month ago.

14 hours ago
Phys.org / Clearing the nanoscale bottleneck holding back next-gen electronics

Researchers at UCLA have discovered a way to dramatically improve how electrical current enters perovskite semiconductors, an emerging class of materials with enormous potential for next-generation electronics. Their research ...

10 hours ago
Phys.org / DESI maps C-19, an extremely metal-poor Milky Way stellar stream

Using the Mayall 4-meter telescope at Kitt Peak National Observatory, an international team of astronomers has observed C-19—an extremely metal-poor stellar stream in the Milky Way's halo. Results of the observational campaign, ...

18 hours ago
Phys.org / Gravitational waves leave imprints on light emitted by atoms, theoretical study predicts

Gravitational waves are ripples in spacetime produced by violent cosmic events, such as the merging of black holes. So far, direct detections have relied on measuring tiny distance changes over kilometer-scale instruments. ...

15 hours ago
Phys.org / Engineered nanoparticles show enhanced intrinsic luminescence for biomedical imaging and cancer treatment

The Nanomedicine and Nanotoxicology Group (GNano) at the University of São Paulo's São Carlos Institute of Physics (IFSC-USP) in Brazil has discovered a way to transform hydroxyapatite, a bioceramic material, into a nanoparticle ...

10 hours ago
Phys.org / H5N1 in marine mammals is spreading: Research tallies over 50,000 seals and sea lions killed along South America's coast

When the H5N1 highly pathogenic avian influenza virus was discovered on a poultry farm in Asia in 1996, there was little indication that it would become so widespread and so destructive. Within 30 years, it reached every ...

11 hours ago