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Gegründet: 2004
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Phys.org ist ein Wissenschafts-Nachrichten-Aggregator und die Flaggschiff-Website des Science X Netzwerks (neben Medical Xpress und Tech Xplore), gegründet im Jahr 2004. Science X ist vollständig im Besitz von Omicron Technology Limited, einem privaten Unternehmen mit Sitz in Douglas, Isle of Man. Es ist ein privat geführter kommerzieller Verlag ohne staatlichen, parteiischen oder kirchlichen Besitzer.
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Phys.org hat keine parteipolitische Zugehörigkeit; es veröffentlicht und kuratiert Forschungsnachrichten und Pressemitteilungen und wird im Allgemeinen als wenig voreingenommen / pro-wissenschaftlich bewertet.
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Vergewaltiger, der muslimische Männer auf Snapchat und Grindr "catfished" hat, im Gefängnis
Two-year-old rescued and taken to hospital six days after Venezuela quake
SpaceX bietet Anlegern einen 25 Milliarden Dollar schweren Anleihen-Deal.
Eine Hoffnung für die durch den Klimawandel zerstörten Korallenriffe.
How extreme weather impacts white stork survival in Bulgaria
Der erste in der Antarktis gefundene Dinosaurier, der für die Wissenschaft beschrieben wurde
Elon Musk: der extremistische Milliardär, der die Sterne aus dem Himmel löschen will
27 km lang und 175 m tief: CERN schaltet den Teilchenbeschleuniger für 4 Jahre aus
Grünland könnte unter künftigen Dürrebedingungen viermal mehr Kohlenstoff aufnehmen
Aktuelle Berichterstattung
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.
Die USA werden während der Fußball-Weltmeisterschaft am 4. Juli von einer drückenden Hitze heimgesucht
Eine intensive Hitzewelle fegte Anfang Juli 2026 über die Vereinigten Staaten, die Millionen von Menschen betraf und gefährliche Bedingungen schuf, insbesondere an der Ostküste. Das Ereignis fiel zusammen mit der Veranstaltung der Fußball-Weltmeisterschaft in den USA und der Vorbereitung auf den 250. Jahrestag der Unabhängigkeit.
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.
Im tropischen Pazifik herrschen El Niño-Bedingungen, so die Forscher.
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.
Die in der Nähe von Andromeda entdeckte ultradünne Galaxie könnte 12,5 Milliarden Jahre alt sein
Astronomen haben in der Nähe der Andromeda-Galaxie (M31) eine neue, extrem schwache Zwerggalaxie namens And XXXVI entdeckt, die der nächstgelegene große galaktische Nachbar der Milchstraße ist. Die Studie, die in Astronomy & Astrophysics veröffentlicht wurde, legt nahe, dass And XXXVI einer der schwächsten bekannten Satelliten von Andromeda ist und fast 12,5 Milliarden Jahre alt sein könnte. Ultra-schwache Zwerggalaxien sind vermutlich Überreste des frühen Universums und werden von dunkler Materie dominiert, was sie für das Verständnis der Galaxienbildung und das Testen dunkler Materie-Theorien entscheidend macht. Die Forscher stellen fest, dass während über 40 Zwerggalaxien bekannt sind, die Andromeda umkreisen, nur etwa 15 als ultra-schwache Galaxien klassifiziert sind, was bedeutet, dass noch viele mehr entdeckt werden müssen. Weitere Beobachtungen mit Weltraumteleskopen wie dem Hubble sind erforderlich, um Details wie die genaue Entfernung, das Alter und die chemische Zusammensetzung der Galaxie zu bestätigen.
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.
Die Wahrscheinlichkeit einer dritten Hitzewelle in Großbritannien steigt, da Temperaturen von 30 °C prognostiziert werden
Eine kommende Hitzewelle in Großbritannien wird vorausgesagt, wobei die Temperaturen bis zum Wochenende in Teilen des Südostens möglicherweise 30 ° C erreichen werden. Das Met Office berichtet, dass der Juni 2026 der wärmste Juni für England und der zweitwärmste für das gesamte Vereinigte Königreich war. Ein Hochdrucksystem von den Azoren bewegt sich in Richtung der iberischen Halbinsel und trägt zu steigenden Temperaturen bei. Während das Vereinigte Königreich in der Regel eine Hitzewelle erklärt, wenn die Temperaturen bestimmte regionale Schwellenwerte erreichen - wie drei aufeinanderfolgende Tage von 28 ° C in London und im Südosten -, deuten die aktuellen Bedingungen darauf hin, dass die Hitzewelle früher als üblich beginnen könnte. Die britische Gesundheitssicherheitsbehörde hat für mehrere Regionen Hitzewarnungen ausgegeben und vor Risiken für gefährdete Personen gewarnt. Obwohl die Luft im Vergleich zu früheren Hitzewellen voraussichtlich weniger feucht sein wird, bleiben die potenziellen Unannehmlichkeiten bestehen.
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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