United KingdomPropriété et classification
Fondé: 2004
Propriété
Phys.org est un agrégateur de nouvelles scientifiques et le site phare du réseau Science X (à côté de Medical Xpress et Tech Xplore), fondé en 2004.
Financement
Financé commercialement, principalement par la publicité en ligne et le contenu sponsorisé/partenariat autour de sa production quotidienne en grand volume d'articles scientifiques et technologiques sélectionnés.
Affiliation et orientation
Phys.org n'a pas d'affiliation partisane; il republie et organise des nouvelles de recherche et des communiqués de presse et est généralement classé comme faible parti pris / pro-science.
Orientation éditoriale
- Notre estimation
- Centre
- Mesuré d’après la couverture
- Centresur la base de 193
87/100
Factualité
87/100
Objectivité
763
Articles
763
articles
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Les plus couvertes
Le violeur qui a "attrapé" des hommes musulmans sur Snapchat et Grindr est emprisonné
Two-year-old rescued and taken to hospital six days after Venezuela quake
SpaceX propose aux investisseurs des rendements juteux dans une transaction obligataire de 25 milliards de dollars
Un espoir pour les récifs coralliens détruits par le changement climatique.
How extreme weather impacts white stork survival in Bulgaria
Le tout premier dinosaure trouvé en Antarctique décrit pour la science
Elon Musk: le milliardaire extrémiste qui veut effacer les étoiles du ciel
Un tunnel de 27 km de long et 175 m de profondeur: le CERN désactive l'accélérateur de particules pour 4 ans
Grasslands could lose four times more carbon uptake under future drought conditions
Couverture récente
Ultrafast scanning tunneling microscopy reaches the quantum mechanical space-time limit for the first time
Researchers have achieved a breakthrough in observing the 'space-time limit' for electrons, where the simultaneous measurement of their location and time evolution becomes fundamentally limited by quantum mechanics. This discovery, made by teams from the Regensburg Center for Ultrafast Nanoscopy (RUN) and the Max Planck Institute in Hamburg, could impact future technologies like quantum computing and high-performance electronics. They used ultrafast scanning tunneling microscopy combined with advanced laser systems to track electron movement on attosecond time scales, revealing behaviors governed by quantum principles rather than classical mechanics.
Study reveals systemic barriers slowing down circular plastics transition
A study from the University of Eastern Finland identifies systemic barriers hindering the transition to a circular plastics economy. Researchers highlight that factors like regulation, technology, market structures, consumer behavior, and collaboration create interconnected but conflicting dynamics that limit progress. The study introduces the 'recycling for nothing paradox,' noting that despite substantial investment in recycling and sustainability efforts, misalignments across the ecosystem reduce their effectiveness. The findings emphasize the need to address contradictions within the system rather than focusing on isolated solutions. The research, published in the Journal of Circular Economy, aims to inform companies, policymakers, and researchers working on sustainable plastics systems.
Une chaleur oppressante frappe les États-Unis pendant la Coupe du monde, le 4 juillet
Une vague de chaleur intense a balayé les États-Unis au début du mois de juillet 2026, affectant des millions de personnes et créant des conditions dangereuses, en particulier sur la côte est. L'événement a coïncidé avec l'organisation de la Coupe du monde par les États-Unis et la préparation de la commémoration de son 250e anniversaire de l'indépendance.
There may be 3 times more insect species than previously thought
A recent scientific study suggests that the global number of insect species could be significantly higher than previously believed, estimating between 8 million to 14 million additional species that remain undiscovered. Current estimates suggest around 6 million known insect species, but this research uses genetic data from over 1.6 million tropical insects, particularly focusing on parasitoid wasps in Costa Rica, along with statistical models, to propose a much larger figure of up to 20 million insect species. This finding highlights the vast underestimation of insect diversity and emphasizes the importance of understanding biodiversity to effectively conserve it. Researchers note that insects' high diversity stems from factors like metamorphosis and their ability to thrive in varied environments. The study was conducted using extensive sampling in Costa Rica’s ACG protected area, employing techniques such as Malaise traps and DNA barcoding to catalog species.
V tropickém Pacifiku nastaly podmínky jevu El Niňo, uvedli výzkumníci
The article reports that researchers from New Zealand’s Earth Sciences organization (ESNZ) have identified conditions consistent with the El Niño climate phenomenon in the tropical Pacific. They warn that impacts on New Zealand’s weather are likely to intensify over the coming months. The ESNZ joined other organizations in Australia, Japan, and the U.S. in confirming the development of El Niño, which is expected to reach strong intensity between July and September. The effects are projected to peak during the Southern Hemisphere summer, spanning late 2023 into early 2024. According to lead researcher Chris Brandolini, this El Niño event is at least comparable in strength to five of the strongest recorded El Niños in modern history. The article outlines regional rainfall expectations, noting potential below-average precipitation in some areas and above-normal levels in others. It also mentions possible temperature fluctuations and increased wind variability later in the year. Additionally, it notes two lower-probability risks: sudden stratospheric warming and the occurrence of a tropical cyclone outside the typical season, both historically linked to El Niño. Brandolini connects the
Researchers recreate a lost Ming Dynasty goldworking technique to make replica royal jewelry
Researchers from the China University of Geosciences successfully recreated a lost Ming Dynasty goldworking technique called Jin zhe si, which allows for the creation of intricate filigree-like patterns without using wire. By studying gold earrings found in the tomb of Prince Zhu Zairong, they discovered that the technique involved folding thin gold foil into layered, corrugated structures. Using historical records and microscopic analysis, the team reverse-engineered the process and created a replica that closely matched the original in form, texture, and weight. They tested the method with silver and aluminum, but only high-purity gold could be folded repeatedly without breaking, highlighting the unique properties required for this ancient technique.
Tax-avoiding firms more likely to greenwash, analysis of 391 ASX companies suggests
A study conducted by Murdoch University and published in Business Strategy & Development analyzed 391 Australian Securities Exchange-listed companies between 2019 and 2022. The research found a correlation between aggressive tax avoidance and 'greenwashing'—where companies exaggerate their environmental responsibilities. Lead researcher Dr. Augustine Donkor noted that during economic uncertainty, such as the COVID-19 pandemic, companies may prioritize image management over genuine sustainability efforts. The study also revealed that companies employing a 'defender' business strategy, typically focused on stability and cost control, were more likely to engage in greenwashing when they perceive it as a low-cost reputational tool. The findings emphasize the need for improved transparency and stricter oversight of both sustainability reports and corporate tax practices.
Hot Jupiter winds reveal exoplanet magnetic fields for first time
Astronomers have discovered magnetic fields on 'hot Jupiters,' a type of exoplanet with extremely high surface temperatures, marking the first direct evidence of such fields beyond our solar system. Using telescopes like the European Southern Observatory's Very Large Telescope in Chile, researchers observed extreme wind patterns on these gas giants, which range from 7,200 to 25,000 km/h. Surprisingly, hotter planets exhibited weaker winds, suggesting the presence of magnetic fields that slow charged particles. The findings, published in Nature Astronomy, indicate that these exoplanets possess magnetic fields comparable in strength to those of Jupiter and Earth, offering new insights into planetary atmospheres and potential habitability.
Une galaxie très faible découverte près d'Andromède pourrait avoir 12,5 milliards d'années
Les astronomes ont découvert une nouvelle galaxie naine ultra-faible nommée And XXXVI près de la galaxie d'Andromède (M31), qui est le voisin galactique majeur le plus proche de la Voie Lactée. L'étude, publiée dans Astronomy & Astrophysics, suggère qu'And XXXVI est l'un des satellites les plus faibles connus d'Andromède et pourrait avoir près de 12,5 milliards d'années. Les galaxies naines ultra-faibles sont considérées comme des vestiges de l'univers primitif et sont dominées par la matière noire, ce qui les rend cruciales pour comprendre la formation des galaxies et tester les théories de la matière noire. Les chercheurs notent que si plus de 40 galaxies naines sont connues en orbite autour d'Andromède, seulement 15 sont classées comme ultra-faibles, ce qui implique qu'il y en a peut-être encore beaucoup à découvrir.
Narrow time windows shaped passage for salmon, trout and lamprey at Haringvliet sluices, 18-year analysis shows
A study published in Movement Ecology analyzed the migration patterns of Atlantic salmon, sea trout, and sea lamprey through the Haringvliet Sluices using data from 1,751 tagged fish collected between 1996 and 2018. The research revealed that less than one-third of migratory fish successfully entered the Rhine-Meuse delta, with most passing through the sluices during specific time windows, particularly toward the end of discharge periods when water levels and flow velocities were more favorable. The study also noted differences in passage behavior among species, with Atlantic salmon showing high selectivity for specific conditions and timing, while sea trout exhibited greater variability. Some fish bypassed the Haringvliet Sluices entirely by using the Port of Rotterdam as an alternative route.
JWST discovers a new barred spiral galaxy
Astronomers have discovered a new barred spiral galaxy named M1149-BSG-z5 using the James Webb Space Telescope (JWST). The galaxy, located at a redshift of 5.1, is notable for hosting a stellar bar measuring approximately 14,700 light-years in length, making it the highest-redshift barred galaxy identified to date. It has an effective radius of about 8,500 light-years, with spiral arms extending up to 17,900 light-years. The galaxy's mass is estimated at 28 billion solar masses, and it exhibits a star-formation rate of 144 solar masses per year. Additionally, M1149-BSG-z5 hosts an active galactic nucleus (AGN) with a relatively low black-hole-to-stellar mass ratio, suggesting it may represent a transitional phase in galaxy evolution. The findings were published on the preprint server arXiv.
Troisième vague de chaleur au Royaume-Uni de plus en plus probable avec des températures de 30C prévues
Une vague de chaleur imminente au Royaume-Uni est prévue, avec des températures pouvant atteindre 30 ° C dans certaines parties du sud-est d'ici le week-end. Le Met Office rapporte que juin 2026 a été le mois de juin le plus chaud jamais enregistré pour l'Angleterre et le deuxième plus chaud pour le Royaume-Uni dans son ensemble. Un système de haute pression des Açores se déplace vers la péninsule ibérique, contribuant à la hausse des températures. Alors que le Royaume-Uni déclare généralement une vague de chaleur lorsque les températures atteignent des seuils régionaux spécifiques - tels que trois jours consécutifs de 28 ° C à Londres et dans le sud-est - les conditions actuelles suggèrent que la vague de chaleur pourrait commencer plus tôt que d'habitude. L'Agence de sécurité sanitaire du Royaume-Uni a émis des alertes de chaleur pour plusieurs régions, mettant en garde contre les risques pour les personnes vulnérables.
Study demonstrates neurotransmitter communication in immune cells directly for the first time
Researchers from the University of Münster and Ruhr University Bochum have discovered that neutrophils, a type of white blood cell, use catecholamines—such as dopamine and adrenaline—to communicate in real time, similar to how nerve cells function. Using fluorescent carbon nanotube sensors, they observed that neutrophils absorb, store, and release these neurotransmitters in response to inflammation. This finding reveals a previously unknown connection between the immune system and the nervous system, showing that catecholamines regulate both immune responses and blood clotting. The study suggests that this mechanism is active in humans, based on experiments involving healthy volunteers. The research was published in the journal Advanced Science.
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