Phys.org - latest science and technology news stories
Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.
Biotechnology
Breaking through AlphaFold's limits to predict how proteins change shape
Conformational changes in proteins are vital to their function yet remain challenging for state-of-the-art artificial intelligence, such as AlphaFold3, to predict. Researchers at the Institute for Molecular Science (IMS), and the Graduate University for Advanced Studies, SOKENDAI introduced a repulsive force between predicted structures, allowing AlphaFold3 to sample the multiple conformational states that its default settings rarely capture.
Plants & Animals
How much clearcutting can nature sustain? A study determines the ecological limit for boreal forest birds
A study led by the University of Jyväskylä in Finland evaluated, for the first time, an ecological threshold for the amount of clearcutting in boreal forests. According to the results, maintaining populations of bird species specialized in old-growth forests requires either a forest rotation period of at least 90 years on average or that approximately one-fifth of the forest area be excluded from clearcut management. The study provides a concrete target for the ecologically sustainable use of forests.
Astronomy
FAST finds two mysterious hydrogen clouds with no visible stars
Astronomers have found two clouds of hydrogen near the Whirlpool galaxy that appear to contain almost no stars. The clouds, discovered with China's FAST radio telescope, each contain roughly 3 million times the mass of the sun in hydrogen but have no detectable optical counterpart. Their properties are outlined in a new paper published in the Astronomy & Astrophysics journal on Aug. 4.
Veterinary medicine
Views from a physician and veterinarian: How to improve barriers to pet care when owners are hospitalized
The human-animal bond is often so strong that pet owners may delay or forgo medical treatment or leave a health care facility against medical advice if they have no one to care for their pet at home. A perspective paper published in the New England Journal of Medicine explains why pet owners may need different approaches to care when hospitalized, according to an Emory University physician and an Ohio State University veterinarian.
Molecular & Computational biology
US study tests psilocybin to fight cancer side effects
Here's a novel idea for countering the painful side effects of chemotherapy: Beforehand, take the hallucinogenic drug found in magic mushrooms.
Astronomy
A black hole as light as 40 tons can exist inside a star if dark matter helps
In 1974, Stephen Hawking made a prediction that transformed our understanding of black holes. Black holes, he showed, are not truly black: They slowly lose energy through a quantum process now known as Hawking radiation. The lighter the black hole, the faster it evaporates.
Plants & Animals
Tree species diversity protects forests from climate extremes, study finds
New research has found that tree species diversity can play a crucial role in protecting forests from the growing threat of extreme climate events. The study analyzed data from 88,116 separate forest plots across the United States to investigate the impact of "compound climate extremes," when events such as drought and extreme heat occur at the same time.
Plants & Animals
Scientists discover how narwhals grow nature's only straight tusk
Narwhals have nature's only straight tusk, a single tooth up to three meters (10 feet) long, so strange they were sold as magical unicorn horns during the Middle Ages.
Mathematics
Some disagreement makes groups more trustworthy, mathematical framework finds
When humans are making decisions, they are known not to rely solely on their own considerations and the evidence available to them. Past behavioral science and psychology studies have shown that people are often also influenced by the choices and opinions of others.
Earth Sciences
Lakes aren't just storing water—they're changing the carbon cycle
Lakes may look like picturesque stopping points along a river or stream, but they can have a big influence on what happens to carbon as it moves through a landscape. New research suggests that the more lake-rich a network of streams is, the more carbon is released into the atmosphere rather than carried downstream.
Earth Sciences
Ocean indicators NOAA scientists are tracking for El Niño's arrival on the West Coast
Has El Niño reached the West Coast? You might think it has. After all, the ocean off Southern and Central California is unusually warm. But that warmth is from a recent marine heat wave that predates the current El Niño. Much of the Pacific Coast is experiencing relatively normal conditions while still awaiting the impacts of what could be a very strong El Niño.
Archaeology
Late Roman decrees uncover military system behind amphitheater animal spectacles
A study on Roman law by the Carlos III University of Madrid analyzes the regulations and complex imperial logistics governing the capture, transport and safety of animals used in spectacles in the Roman Empire—which were far more popular than gladiatorial combat.
Earth Sciences
New method predicts where massive earthquakes will strike
UC Riverside scientists have developed a way to identify where Earth's biggest earthquakes are most likely to occur, offering a powerful new tool for improving disaster preparation in some of the most dangerous seismic regions.
Environment
How haze from Indonesian fires impacts Southeast Asia
Thick smog has blanketed parts of Indonesia as the vast archipelago battles fires that have burned large swaths of Borneo and Sumatra for weeks.
Environment
Indonesia rescues second orangutan mother and baby from wildfire
An orangutan mother and her baby, threatened by wildfires encroaching on their habitat in Indonesia, were rescued earlier this week, authorities said in a statement Saturday.
Planetary Sciences
Spacecraft bound for Mercury begins 'tricky' arrival
After an eight-year journey, a spacecraft carrying European and Japanese probes began the monthslong, high-risk approach to Mercury on Thursday to study the sun-scorched planet.
General Physics
Levitated magnet opens new frontier in search for ultraheavy dark matter
Rice University researchers have used a magnetically levitated particle to search for ultraheavy dark matter, extending the hunt for some of the heaviest possible forms of the invisible matter thought to hold galaxies together. Led by Christopher Tunnell, associate professor of physics and astronomy, the researchers used a tiny floating magnet as a highly sensitive detector designed to register the faint push an ultraheavy dark matter particle could produce as it passed through.
Economics & Business
AI could undermine managers' judgment unless used carefully, study warns
Generative artificial intelligence (Gen-AI) has become a routine part of working life, but overreliance on the technology may erode managers' ability to build moral insights, contextual understanding and know-how to get a job done, according to a new study from the University of Bath.
Education
Study reveals pupils most at risk of school suspension and what may help them
School suspensions are associated with a complex combination of socioeconomic disadvantage, special educational needs, peer relationships and students' experiences of school, according to new research from The University of Manchester.
Environment
Deadly floods of 2021—Researchers identify gaps in hazard mapping
The catastrophic flooding in July 2021 claimed the lives of more than 200 people in Germany and Belgium. The high death toll makes it clear that hazard mapping and risk communication must be improved urgently. Researchers at the University of Potsdam, the Helmholtz Centre for Geosciences, the University of Louvain and Johns Hopkins University analyzed the locations and specific circumstances of 224 deaths. Their findings show that many occurred outside the officially mapped flood hazard zones and that older people were particularly affected. The work is published in the journal Earth's Future.
Earth Sciences
Researchers tune into Arctic under-ice sounds and test through-ice communication
Beneath the Arctic Ocean is an orchestra featuring natural and human composers, from cracking sea ice and whistling beluga whales to humming shipping-vessel engines. Researchers from MIT Lincoln Laboratory heard some of this cacophony when analyzing data from commercial off-the-shelf sensors that they integrated and deployed in 2024 during the U.S. Navy's Operation Ice Camp (OIC). This past March, during OIC 2026, the researchers returned to the Arctic with a higher-fidelity version of one of the sensors, a geophone that detects vibrations in the sea ice.
Condensed Matter
A new type of LED light could bring significant efficiency gains
Researchers at Lund University have developed a new type of light-emitting diode based on thin, branched nanowires that could offer significantly higher efficiency and lower production costs than current technology. By controlling where in the structure the light is generated, the researchers have reduced the losses that would otherwise limit the amount of light that can be used. Their study is published in the journal Nano Research.
Plants & Animals
In ant nervous systems, gene expression may drive rescue behavior
Why do some ants help nestmates in distress while others don't? A research team from Johannes Gutenberg University Mainz (JGU) and Tel Aviv University addressed this question in a new study. The researchers examined worker ants of the species Cataglyphis niger, some of which had shown rescue behavior while others had not. The results, recently published in the Journal of Experimental Biology, suggest that the key difference lies not in body size, morphology or the animals' energy reserves, but in gene activity in the nervous system.
Superconductivity
Magic-angle graphene provides evidence for unconventional superconductivity
Researchers have completely suppressed superconductivity in magic-angle graphene by screening interactions between electrons, helping resolve a long-running debate about the origin of the phenomenon.
Biochemistry
New AI tool maps the hidden universe of small molecules
The human body and its gut microbiome produce thousands of small molecules that shape how the body functions—influencing immunity, metabolism and more. Identifying what those molecules actually are has been one of the biomedical sciences' most persistent bottlenecks. More than 80% of compounds detected in a typical biological sample cannot be matched to any known structure using current methods.
Environment
Shoreline scavenger shows biological effects after eating plastic foam
In a paper published in the journal Marine Pollution Bulletin, researchers at Kyushu University report on what happens when wharf roaches, a common shoreline scavenger, eat expanded polystyrene (EPS). Roaches that fed on EPS showed no significant reduction in lifespan, but their guts displayed altered expression of genes involved in chemical defense, DNA repair and digestion. Analysis of the wharf roach gut microbiome showed little change, but several rare microbes were found only in the EPS-fed specimens.
Education
Do games make children more attentive or more distractible?
A study of preschool children found that brief digital or traditional gameplay improved performance on tasks requiring quick responses but reduced performance on tasks demanding greater concentration and self-control.
Plants & Animals
Periodical cicadas may be doomed to extinction
Every 13 or 17 years, swarms of cicadas emerge from the ground, their black bodies, orange-tinged wings and ruby-red eyes enveloping trees and forests. It is a biological marvel unique in the insect world, and when it happens, it is impossible not to notice.
Archaeology
AI helps reveal the immersive sensory experiences of ancient Etruscan tombs
The Etruscan painted tombs in Tarquinia, Italy, date to the first millennium BCE and are known for their vivid scenes of music, feasting, processions and the afterlife. While these tombs have been extensively studied, archaeologists have typically looked at the paintings as images to decode rather than as parts of an experience that people moved through.
Analytical Chemistry
Before mixing starts, initial catalyst structure governs fuel-cell ink dispersion
Researchers from Kanazawa University, the University of Tokyo and HORIBA, Ltd. have shown that the initial state of platinum-on-carbon (Pt/C) catalyst particles before they are mixed with an ionomer strongly influences how a polymer electrolyte fuel cell (PEFC) catalyst ink subsequently develops. The paper is published in the Chemical Engineering Journal.