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. For decades, two different viruses were believed to be responsible for a common, untreatable disease in dahlias, a colorful, high-value flower grown worldwide. Virologists at Washington State University have now learned that the two viruses, known as dahlia mosaic virus and the dahlia common mosaic virus, are variants of the same viral species. Based on the sequencing and comparison of the viruses' genomes, the discovery was published in the journal Archives of Virology. https://phys.org/news/2026-04-dahlia-viruses-variants-species.html Plants & Animals Wed, 22 Apr 2026 16:20:05 EDT news696081482 A seismic hush fell over U.S. and Canadian cities that were in the "path of totality" during the 8 April 2024 total solar eclipse, according to new research presented at the 2026 SSA Annual Meeting. https://phys.org/news/2026-04-total-solar-eclipse-quiets-seismic.html Earth Sciences Mon, 20 Apr 2026 09:40:01 EDT news695893561 Photosynthetic bacteria helped shape planet Earth. Among them are cyanobacteria that produced the oxygen in the atmosphere and made complex life possible, captivating scientists for decades. Now, researchers at the Institute of Science and Technology Austria (ISTA) report a surprising new discovery—a system thought to separate DNA has developed to sculpt the shape of the cell in cyanobacteria instead. The results, published in Science, shed light on how protein systems evolve and how multicellularity emerged in this type of ecologically essential bacteria. https://phys.org/news/2026-04-cyanobacteria-scientists-evolutionary-shift.html Evolution Thu, 16 Apr 2026 14:00:07 EDT news695472121 If you can't get no satisfaction, then maybe it's because happiness does not only stem from pleasure or a meaningful existence. Instead, a new Simon Fraser University study suggests that freedom is the key to happiness. https://phys.org/news/2026-04-autonomy-key-happiness.html Social Sciences Wed, 15 Apr 2026 15:20:02 EDT news695474282 A multidisciplinary archaeological team has examined plague burials from a 17th-century monastery turned hospital in Basel, Switzerland, shedding light on how social status impacted plague mortality in Early Modern Europe. Their study, "All equal in the face of death? Life histories of confirmed victims of the last plague epidemic in Basel," is published in the journal Antiquity. https://phys.org/news/2026-04-great-equalizer-young-laborers-hardest.html Archaeology Tue, 14 Apr 2026 05:00:05 EDT news694964942 The wave-shaped chart Ratul Chowdhury pulls up on a computer monitor in his office captures the evolutionary cat-and-mouse game his research lab is up against. The undulating curves track variants of the porcine reproductive and respiratory syndrome (PRRS) virus, which causes a swine disease that annually costs the global pork industry more than $1 billion—damage attributable in part to how quickly it adapts to escape from immune defenses. https://phys.org/news/2026-04-future-proofing-livestock-vaccines-viruses.html Molecular & Computational biology Mon, 13 Apr 2026 13:20:06 EDT news695300942 Hedgehogs, elephants, pangolins, bears or fennec foxes: many wild species are sold as pets, hunting trophies, for traditional medicine, biomedical research, or for their meat or fur. These practices, whether legal or illegal, concern one-quarter of all mammal species. Now a study conducted at the Department of Ecology and Evolution of the University of Lausanne (Unil) quantifies the impact of wildlife trade on the exchange of germs and parasites between animals and humans. The work, titled "Wildlife trade drives animal-to-human pathogen transmission over 40 years," appears in Science. https://phys.org/news/2026-04-wildlife-pathogen-transmission-years-spillover.html Ecology Thu, 09 Apr 2026 14:00:08 EDT news694945081 From space, Earth's populated areas glow on the otherwise "black marble" of the planet at night. For decades, scientists assumed this glow was steadily increasing as the world developed. However, a new study published in Nature flips this narrative. https://phys.org/news/2026-04-satellites-capture-volatile-humanluminescence-relationship.html Environment Wed, 08 Apr 2026 18:40:01 EDT news694880162 An international team of scientists is warning that everyday antibacterial soaps, wipes, sprays, and other "germ-killing" products are quietly contributing to the global rise of antimicrobial resistance (AMR) while providing no added health benefit for most consumer uses. https://phys.org/news/2026-03-antibacterial-soaps-fuel-antimicrobial-resistance.html Environment Tue, 31 Mar 2026 09:20:03 EDT news694167135 When you go out to run errands on the weekend, you're on a "tour" as defined by human mobility researchers. Same if you book a guided tour of a famous city or take a trip on a cruise boat that reaches multiple ports. A characteristic of such tours is that you begin and end up in the same place and take intermediate stops along the way. The number of stops is the tour's "length." https://phys.org/news/2026-03-science-delivery.html Mathematics Mon, 30 Mar 2026 14:20:02 EDT news694089403 Nucleic acids such as DNA and RNA play a central role in gene therapies and vaccines. They store and transmit biological information. In order for them to work in the body, they must enter the cells using chemical carrier systems. Researchers at the Helmholtz-Zentrum Hereon are now proposing a new strategy for developing such systems: instead of using the same carrier material for different nucleic acids, the carrier should be individually adapted to the respective payload. This could improve the effectiveness of vaccines, for example. https://phys.org/news/2026-03-lipid-nanoparticles-custom-polymers-ai.html Bio & Medicine Thu, 26 Mar 2026 17:50:01 EDT news693763621 Analysis of two decades of student data at a large U.S. university suggests that grade inflation exists in graduate education. Researcher Vivien Lee and colleagues at the University of Minnesota, U.S., present these findings in the journal PLOS One. https://phys.org/news/2026-03-significant-grade-inflation-decades-worth.html Education Wed, 25 Mar 2026 14:00:03 EDT news693587581 A new paper in Genome Biology and Evolution, indicates that while the COVID-19 virus has developed rapidly since 2019, it has done so within limited genetic channels. These genetic limits have remained unchanged. Despite scientists' earlier fears about dramatic, rapid evolution of the COVID-19 virus, it appears recent changes in the virus were relatively constrained; the virus altered by combining pre-existing mutations. The virus has not expanded the number of genetic routes it can take to evolve. https://phys.org/news/2026-03-uncovering-evolutionary-limits-covid-virus.html Evolution Wed, 25 Mar 2026 00:10:02 EDT news693576421 When holidays or pandemics shut down schools, gender differences in children's reading habits widen; boys stop reading, while girls continue, according to a new study from the University of Copenhagen. The researchers say their findings suggest that boys are more dependent on school routines and expectations than girls. https://phys.org/news/2026-03-boys-ditch-schools-girls.html Social Sciences Tue, 24 Mar 2026 13:00:01 EDT news693570698 Following the beginning of the COVID-19 outbreak, lateral flow assays (LFAs)—the category of test strips in which the presence or lack of a pink line indicates whether a specific molecule, like a drug or a virus, has been detected—became household items. Yet despite their ubiquity and decades of development, there has not been a quantitative, physics-grounded method for explaining the sensitivity and limits of LFAs to help guide their design. https://phys.org/news/2026-03-sensitive-fentanyl-physics.html Bio & Medicine Tue, 24 Mar 2026 11:00:07 EDT news693479511 Penn Engineers have redesigned a key component of lipid nanoparticles (LNPs), the delivery vehicles behind mRNA vaccines, to steer the particles toward lymph nodes while reducing off-target delivery to the liver. The advance could make mRNA vaccines more efficient, potentially achieving strong immune protection at lower doses. https://phys.org/news/2026-03-lipid-nanoparticle-precision-mrna-vaccine.html Bio & Medicine Tue, 24 Mar 2026 08:00:03 EDT news693489121 RIKEN researchers have demonstrated a method that can detect tiny amounts of biomarkers in liquid samples and can distinguish between highly similar biomarkers. This promises to boost the versatility and usefulness of liquid biopsies. The results are published in the Proceedings of the National Academy of Sciences. https://phys.org/news/2026-03-liquid-biopsy-method-nanoparticle-raman.html Bio & Medicine Wed, 18 Mar 2026 13:20:04 EDT news693053828 The most common side effects of mRNA vaccines like the COVID-19 shot are well known: soreness, mild fever, and general malaise. Those symptoms, which typically resolve within days, are the natural result of the immune system activating. But what if they could be avoided? https://phys.org/news/2026-03-lipid-nanoparticles-reprogram-immune-metabolism.html Bio & Medicine Tue, 17 Mar 2026 06:00:01 EDT news692900401 Diagnosing some diseases could be as easy as breathing into a tube. MIT engineers have developed a test to detect disease-related compounds in a patient's breath. The new test could provide a faster way to diagnose pneumonia and other lung conditions. Rather than sit for a chest X-ray or wait hours for a lab result, a patient may one day take a breath test and get a diagnosis within minutes. https://phys.org/news/2026-03-nanoparticles-enable-minute-pneumonia.html Bio & Medicine Mon, 16 Mar 2026 17:00:03 EDT news692889541 Math nerds and dessert enthusiasts unite to celebrate Pi Day every March 14, the date that represents the first three digits of the mathematical constant pi. https://phys.org/news/2026-03-pi-day-rockets-cancer-embedded.html Mathematics Sat, 14 Mar 2026 05:27:33 EDT news692684815 The COVID-19 pandemic brought messenger RNA (mRNA) vaccines to the forefront of global health care. After their clinical trial stages, the first COVID-19 mRNA vaccine was administered on 8 December 2020 and mathematical models suggest that mRNA vaccines prevented at least 14.4 million deaths from COVID-19 in the first year alone. https://phys.org/news/2026-03-dna-origami-vaccine-rivals-mrna.html Bio & Medicine Wed, 11 Mar 2026 19:40:01 EDT news692459881 Lipid nanoparticles, or LNPs, best known as the delivery vehicle for the COVID-19 mRNA vaccines received by billions of people, are now at the center of a much larger medical revolution. Researchers are racing to use them to ferry therapeutic mRNA into cells for cancer therapies and treatments for inflammatory diseases, as well as delivering CRISPR constructs that can correct disease-causing gene mutations. https://phys.org/news/2026-03-simple-cocktail-amino-acids-boosts.html Bio & Medicine Wed, 11 Mar 2026 14:00:18 EDT news692452921 AI has designed candidate drugs for antibiotic-resistant infections and genetic diseases. But efforts to incorporate AI into the design of lipid nanoparticles (LNPs), the revolutionary delivery vehicles behind mRNA therapies like the COVID-19 vaccines, have been much more limited. https://phys.org/news/2026-03-robotic-microfluidic-platform-ai-lipid.html Bio & Medicine Mon, 09 Mar 2026 17:00:01 EDT news692285017 A new University of California San Diego study published in Cell challenges a long-standing assumption about how animal viruses become capable of sparking human epidemics and pandemics. Using a phylogenetic, genome-wide analysis across multiple viral families, researchers report that most zoonotic viruses—infectious pathogens that spread from animals to humans, including the cause of COVID-19—do not show evidence of special evolutionary adaptation before spilling over into humans. https://phys.org/news/2026-03-pandemic-viruses-humans-prior.html Evolution Mon, 09 Mar 2026 11:40:03 EDT news692269664 Researchers from the National University of Singapore (NUS) have developed CellScope, a high-performance single-cell analysis framework that uses manifold fitting to analyze single-cell RNA sequencing (scRNA-seq) data. This framework helps build detailed "cell atlases" that map different cell types and show how they further group into finer subtypes. https://phys.org/news/2026-02-high-cell-atlas-workflow-driven.html Cell & Microbiology Sun, 01 Mar 2026 11:00:01 EST news691331323 Research on preventing type 1 diabetes often focuses on limiting the autoimmune response that destroys the body's ability to produce its own insulin. A new technology developed by scientists at the University of Chicago takes a different approach, centered on preserving insulin-producing beta cells by giving them the ability to protect themselves. https://phys.org/news/2026-02-nanoparticle-mrna-diabetes.html Bio & Medicine Sun, 01 Mar 2026 08:00:03 EST news691240687 This week, astronomers reported that one of the biggest observed stars in the universe could soon explode. A study compared long-term COVID-19 brain effects to the flu. And a new eco-friendly battery could theoretically last for centuries (or for several hours if you put it into a Steam Deck, haha). https://phys.org/news/2026-02-saturday-citations-rex-tiptoe-subduing.html Other Sat, 28 Feb 2026 08:30:01 EST news691413577 In recent years, mRNA in lipid nanoparticles (mRNA–LNPs) has emerged as a promising strategy for treating numerous conditions, including COVID-19, various cancers and chronic genetic disorders. To date, this technology has not been successfully used for pancreatic diseases, but that could be about to change. In a paper published in Nature, scientists from China report the development of a new lipid nanoparticle drug-delivery system specifically designed for the pancreas. https://phys.org/news/2026-02-size-shifting-nanoparticles-successfully-mrna.html Bio & Medicine Fri, 27 Feb 2026 14:40:03 EST news691413738 Water droplets have a unique ability: They can leap from a surface on their own. This can happen for a variety of reasons, such as when a surface repels water or when heat is involved, such as a water or oil droplet skittering across a hot pan. https://phys.org/news/2026-02-puddle-reveal-lotus-surfaces.html General Physics Thu, 26 Feb 2026 05:00:11 EST news691261682 Integrating AI with advanced robotics to create self-driving labs (SDL) is a promising approach to tackling molecular discovery. A new SDL system, called LUMI-lab, combines large-scale molecular pretraining, active learning, and robotics, and has discovered that brominated lipids, not previously linked to mRNA delivery, enhance the efficiency of getting mRNA inside human cells. The study, led by researchers at the University of Toronto's Leslie Dan Faculty of Pharmacy, is published in Cell. https://phys.org/news/2026-02-ai-powered-platform-discovery-mrna.html Bio & Medicine Tue, 24 Feb 2026 18:10:01 EST news691173242