https://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Recent technological advances have enabled the development of increasingly sophisticated, sharper displays for electronic devices. Many modern displays use light-emitting diodes, or LEDs, tiny semiconductor-based components that emit light when an electrical current passes through them. https://phys.org/news/2026-08-technique-quantum-dots-tiny-pixels.html Nanophysics Sun, 09 Aug 2026 15:20:01 EDT news705314764 The Perseid summer light show is back—and viewing conditions are especially promising for the Northern Hemisphere. https://phys.org/news/2026-08-perseid-meteor-shower-summer-dazzle.html Space Exploration Sun, 09 Aug 2026 14:52:39 EDT news705505929 Snakes are highly modified lizards, with more than 4,000 living species today. The origin of snakes has long been one of evolutionary biology's most debated questions. Their sparse fossil record has made it hard to pin down what drove the evolution of their limbless body plan. https://phys.org/news/2026-08-early-snakes-explored-life-underground.html Evolution Sun, 09 Aug 2026 14:40:01 EDT news704977609 The high cost of platinum is one of the main barriers to the wider adoption of hydrogen fuel cells. Now, researchers at IMDEA Materials Institute have developed a catalyst that delivers the same performance while using 75% less of this expensive metal. The study, published in Electrochimica Acta, demonstrates a breakthrough made possible by applying controlled mechanical compression to the catalyst. This modifies its atomic-scale structure, enabling it to achieve energy efficiency comparable to that of pure platinum. https://phys.org/news/2026-08-catalyst-platinum-hydrogen-fuel-cells.html Analytical Chemistry Sun, 09 Aug 2026 14:00:01 EDT news704994481 From schools of fish and flocks of birds to microscopic synthetic particles, many systems in nature and the laboratory consist of individual units or agents that move by consuming energy. These systems are known as active matter because their components continuously use energy to generate motion, either individually or through interactions with their environment. https://phys.org/news/2026-08-tiny-particles-defy-action-reaction.html General Physics Sun, 09 Aug 2026 12:40:01 EDT news705316928 Composing some 85% of the universe's total mass, dark matter betrays its presence only through gravity, unlike ordinary matter. Yet through new research published in Physical Review D, a team led by David Dunsky of New York University has proposed a new way to hunt for the elusive substance. Their approach involves searching for the decay of dark matter particles into gravitons: the hypothetical particles thought to carry the force of gravity itself. https://phys.org/news/2026-08-cosmic-filaments-limits-dark-decay.html Astronomy Sun, 09 Aug 2026 12:00:01 EDT news705321112 Boston College scientists have determined that a newly discovered meteorite from Mars is 1.27 billion years old and derived from a previously unsampled, pristine source on the Red Planet. The study is published in the journal Geochimica et Cosmochimica Acta. https://phys.org/news/2026-08-rare-mars-meteorite-billion-year.html Planetary Sciences Sun, 09 Aug 2026 10:20:01 EDT news705310410 Archaeologists have discovered two giant rock scallop beads that push back the clock on the first appearance of these high-status ornaments. The discovery shows that these prized marine beads were traded hundreds of miles from the California coast thousands of years earlier than previously thought. https://phys.org/news/2026-08-oldest-giant-scallop-bead-california.html Archaeology Sun, 09 Aug 2026 08:40:03 EDT news705235339 Rice University engineers have developed a new strategy for controlling how therapeutic peptides are released from gelatin-based materials, a step that could make the small but powerful molecules more useful in tissue engineering and drug delivery. https://phys.org/news/2026-08-based-strategy-delivery-therapeutic-peptides.html Biotechnology Sun, 09 Aug 2026 07:20:01 EDT news705327575 In a new Nature Physics study, researchers accelerated electrons to more than twice the energy predicted by the traditional dephasing limit for laser-plasma accelerators operating over the same distance. This was made possible by a specially engineered laser pulse called a flying focus, which counteracts a longstanding limitation known as "dephasing." https://phys.org/news/2026-08-flying-focus-laser-key-limitation.html Optics & Photonics Sat, 08 Aug 2026 15:40:03 EDT news705318688 Every year, millions of migratory birds travel between different geographical regions on Earth to find food, escape cold weather or reach safe environments to raise chicks. To determine which direction to fly, these birds rely on various types of sensory cues and information, including the magnetic field surrounding our planet, known as the geomagnetic field. https://phys.org/news/2026-08-pulsed-radiofrequency-magnetic-fields-disorient.html Plants & Animals Sat, 08 Aug 2026 12:40:01 EDT news705314676 The Mauritian dodo—a global symbol of human-caused extinction and one of the world's largest pigeons—may not have deserved its reputation as a silly simpleton and may have been the only member of its group to live in the dark. https://phys.org/news/2026-08-dodo-birds-clever-thought.html Ecology Sat, 08 Aug 2026 11:20:01 EDT news705161909 From reaching for a cup of coffee to tying your shoelaces, gravity shapes nearly all human movement. So how do our bodies react when that familiar force begins to change? Texas A&M University researchers are exploring the answer through a multiphase project supported by NASA. https://phys.org/news/2026-08-gravity-people-simpler-movement-patterns.html Space Exploration Sat, 08 Aug 2026 09:20:01 EDT news705377293 Microplastics, which are plastic particles under 5 millimeters, are a major and growing threat in both soil and water. They damage soil fertility, disrupt nutrient cycling, harm aquatic and terrestrial life, and can move through the food chain. That makes cleaning them up an urgent priority. https://phys.org/news/2026-08-swarms-tiny-robots-microplastics-soil.html Environment Sat, 08 Aug 2026 08:40:01 EDT news705161846 Researchers led by Sa Kan Yoo at the RIKEN Center for Biosystems Dynamics Research (BDR) in Japan have discovered that the natural turnover of gut cells in fruit flies depends on how much food the flies get, rather than on any specific nutrient. They found that gut cells were replaced more frequently when nutrient levels were low and the insides of gut cells were fluid and watery. https://phys.org/news/2026-08-gut-cells-hunger-watery-insides.html Cell & Microbiology Sat, 08 Aug 2026 08:00:01 EDT news705328524 Are some interventions designed to induce gratitude more effectively than others? In which countries and cultures do they work best to improve mood, strengthen bonds between people and promote social reciprocity? A study aimed at answering these questions—conducted in 34 countries with more than 10,000 participants—had its results published in PNAS. In Brazil, the project received the help of researchers and 598 volunteers who responded to intervention prompts via an online tool. https://phys.org/news/2026-08-mega-impact-gratitude-interventions.html Social Sciences Sat, 08 Aug 2026 07:20:03 EDT news705314828 A tiny greenish, nocturnal frog that thrives in coffee plantations has been discovered in Costa Rica's central Pacific region, where it also faces risks from agrochemicals used in farming. https://phys.org/news/2026-08-nocturnal-coffee-frog-costa-rica.html Ecology Sat, 08 Aug 2026 06:00:03 EDT news705380574 For the first time, researchers have discovered that the same silver (Ag) nanocatalyst operates at different reaction sites depending on whether a solid oxide cell is generating electricity or producing hydrogen. This finding introduces a new design principle for improving the performance of next-generation solid oxide cells. https://phys.org/news/2026-08-silver-nanocatalysts-reaction-sites-power.html Materials Science Sat, 08 Aug 2026 02:50:52 EDT news705376221 Scientists have made a surprising finding about how an asexually reproducing stick insect has evolved. Research led by Dr. Darren Parker, lecturer in evolutionary biology at Bangor University, studied the genes of several species of Timema (a type of stick insect), which have not engaged in sexual reproduction for 1 million years—the longest known asexual period for any insect. https://phys.org/news/2026-08-million-years-sex-erase-insects.html Plants & Animals Fri, 07 Aug 2026 19:00:02 EDT news705330364 How much ice is stored in the world's glaciers? And where exactly is it located? A new study led by Ca' Foscari University of Venice, in collaboration with the Institute of Polar Sciences of the National Research Council of Italy (CNR-ISP), provides an updated global map of glacier ice volume. https://phys.org/news/2026-08-ai-reveals-volume-world-glaciers.html Earth Sciences Fri, 07 Aug 2026 18:40:01 EDT news705329281 Oxygen provides the driving force for many vital chemical reactions. Two well-known examples include respiration, the process that allows living things to break down food to release its energy, and combustion, reactions that produce heat and light. But oxygen has an unusual electronic configuration that tends to slow reactions with organic matter, so reactions often need help to get started. In nature, specialized proteins called enzymes can activate oxygen on demand by first rearranging its electrons. https://phys.org/news/2026-08-cleaner-chemical-reactions-oxygen.html Analytical Chemistry Fri, 07 Aug 2026 18:20:01 EDT news705328021 By rapidly twisting a microscopically small tip back and forth, researchers at the University of Maryland (UMD) have unlocked a new way to detect subtle changes on the surface of a material flexing in response to infrared light. https://phys.org/news/2026-08-high-res-view-2d-materials.html Nanomaterials Fri, 07 Aug 2026 18:00:03 EDT news705327588 The initiation of rain in clouds without ice remains one of the largest unsolved mysteries in atmospheric science. https://phys.org/news/2026-08-hidden-anatomy-clouds-reveals-ice.html Earth Sciences Fri, 07 Aug 2026 17:40:02 EDT news705325862 For the first time, researchers have determined the shape of the actinide nucleus of fermium-255 and measured its structure with high precision and resolution. https://phys.org/news/2026-08-laser-spectroscopy-reveal-hidden-nuclear.html General Physics Fri, 07 Aug 2026 17:20:01 EDT news705325561 Using light to process quantum information is one of the most promising approaches to building future quantum computers. Light particles, known as photons, are excellent carriers of quantum information, but their lack of natural interactions has created a major challenge for researchers seeking to build systems capable of performing a full range of computations. https://phys.org/news/2026-08-shifting-architecture-versatility-photonic-quantum.html Optics & Photonics Fri, 07 Aug 2026 17:00:01 EDT news705325201 In Goethe's ballad "Erlkönig," immortalized in Schubert's fevered 1815 setting, a dying boy riding through the night sees a spectral king beckoning from the darkness. His father calms him: "Mein Sohn, es ist ein Nebelstreif"—my son, it is only a wisp of fog. In the poem, the father's reassurance proves tragically wrong. In the quantum world, however, his words acquire an uncanny new meaning. https://phys.org/news/2026-08-mirror-world-particles-wisps-fog.html General Physics Fri, 07 Aug 2026 16:40:02 EDT news705324723 Measuring faint magnetic fields is useful in a number of areas, including mapping brain activity, monitoring hearts and probing fundamental physics. Typically, picking up such weak signals requires expensive or bulky equipment, such as liquid-helium cooling tanks or specially shielded rooms that block out Earth's magnetic field. https://phys.org/news/2026-08-tiny-magnet-ultrafaint-magnetic-fields.html General Physics Fri, 07 Aug 2026 16:20:02 EDT news705322283 When most baby turtles hatch, their sex depends on the temperature of the sand or soil where their mother laid her eggs. Warm incubation produces females, while cool nests produce males. https://phys.org/news/2026-08-antenna-cell-appendage-turtle-embryos.html Plants & Animals Fri, 07 Aug 2026 16:00:01 EDT news705323701 As global temperatures rise, scientists have largely assumed that mountain tree species will move uphill in search of cooler conditions. A new study published in Nature Climate Change reveals a more complex reality: Some tree species are moving uphill, while others are shifting downhill, and the key to understanding these contrasting responses lies in how trees manage water. https://phys.org/news/2026-08-hydraulic-traits-reveal-mountain-trees.html Environment Fri, 07 Aug 2026 15:40:01 EDT news705323461 Scientists in China predict that stacking two microscopic layers of boron could set a new record for superconductivity. Superconductors are materials that conduct electricity with zero resistance. Traditional types need temperatures close to absolute zero to work, requiring complex and expensive cooling equipment. https://phys.org/news/2026-08-boron-layers-superconductivity-theoretical.html Condensed Matter Fri, 07 Aug 2026 15:20:01 EDT news705241771