Phys.org news

Phys.org / Genome-scale metabolic model can increase potato yield

To study growth-defense trade-offs in the context of metabolism in crops, scientists from the Universities of Potsdam and Erlangen, Max Planck Institute of Molecular Plant Physiology, and the National Institute of Biology, ...

Aug 11, 2025 in Biology
Phys.org / Using geometry and physics to explain feature learning in deep neural networks

Deep neural networks (DNNs), the machine learning algorithms underpinning the functioning of large language models (LLMs) and other artificial intelligence (AI) models, learn to make accurate predictions by analyzing large ...

Aug 10, 2025 in Physics
Phys.org / A giant virus wags its tail

University of Hawai'i at Mānoa oceanographers have identified PelV-1, a dinoflagellate-infecting giant virus whose micron-length tail reaches 2.3 µm, stretching current notions of viral architecture.

Aug 10, 2025 in Biology
Phys.org / Scientists thought this Argentine glacier was stable. Now they say it's melting fast

An iconic Argentinian glacier, long thought one of the few on Earth to be relatively stable, is now undergoing its "most substantial retreat in the past century," according to new research.

Aug 10, 2025 in Earth
Phys.org / Saturday Citations: Video games and brain activity; a triple black hole system; neutralizing Skynet

It's August, which means Hot Science Summer is two-thirds over. This week, NASA released an exceptionally pretty photo of Mars, a sharp panorama color altered to make the sky blue (???). California health authorities are ...

Aug 9, 2025 in Other Sciences
Phys.org / Sweet disguise: Body hides its own RNA from the immune system with sugar

To our immune system, naked RNA is a sign of a viral or bacterial invasion and must be attacked. But our own cells also have RNA. To ward off trouble, our cells clothe their RNA in sugars, Vijay Rathinam and colleagues at ...

Aug 9, 2025 in Biology
Phys.org / Oldest known docodontan fossil found in Greenland narrows the evolutionary gap

In a recent study by Dr. Sofia Patrocínio and her colleagues, published in Papers in Palaeontology, a new specimen of Docodonta is described.

Aug 8, 2025 in Biology
Phys.org / How a rare cycad's wax crystals conjure blue without pigment

The endangered South African cycad Encephalartos horridus may resemble a relic from the Jurassic age, but the species itself evolved long after dinosaurs disappeared. Still, it carries a biochemical legacy inherited from ...

Aug 8, 2025 in Biology
Phys.org / Sunlight-activated material turns PFAS in water into harmless fluoride

Researchers at the University of Adelaide have developed a sunlight-activated material that can degrade per- and polyfluoroalkyl substances (PFAS) in water, breaking down the pollutant into harmless components, including ...

Aug 8, 2025 in Chemistry
Phys.org / Decoding sweet potato DNA: New research reveals surprising ancestry

The sweet potato feeds millions worldwide, especially in sub-Saharan Africa, where its natural resilience to climate extremes makes it crucial for food security. But this humble root vegetable has guarded its genetic secrets ...

Aug 8, 2025 in Biology
Phys.org / Molecular timeline provides insights into how immune cells switch into attack mode

Fighting off pathogens is a tour de force that must happen with speed and precision. A team of researchers at CeMM and MedUni Vienna led by Christoph Bock and Matthias Farlik has investigated how macrophages—immune cells ...

Aug 8, 2025 in Biology
Phys.org / Organic molecule achieves both strong light emission and absorption for displays and imaging

Researchers at Kyushu University have developed a novel organic molecule that simultaneously exhibits two highly sought-after properties: efficient light emission suitable for advanced displays and strong light absorption ...

Aug 8, 2025 in Chemistry