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New finding could help create active matter with a structure that continuously reorganizes itself The post Non-reciprocal interactions keep particles in collective motion appeared first on Physics World.

Author(s): Zhuang Ge, Tommi Eronen, Vasile Alin Sevestrean, Ovidiu Niţescu, Sabin Stoica, Marlom Ramalho, Jouni Suhonen, Anu Kankainen, Marjut Hukkanen, Arthur Jaries, Ari Jokinen, Joel Kostensalo, Jenni Kotila, Maxime Mougeot, Iain D. Moore, Wirunchana Rattanasakuldilok, Jouni Ruotsalainen, and Marek StryjczykHigh-precision measurements of nuclear decay energies can reveal rare low-Q transitions with enhanced sensitivity to the absolute neutrino mass. Using the JYFLTRAP double Penning trap and the PI-ICR technique, the electron-capture Q value of 113 Sn was determined with an eightfold improvement in precision over the previous evaluation. Combining the new mass result with known excited states in

Author(s): Michael SchirberA crystal with special geometric properties can be optically driven to produce an output beam with any desired polarization. [Physics 19, s113] Published Thu Sep 10, 2026

Author(s): Klaus RichterTheorists find a persistent signature of a chaotic quantum system’s initial state, implying a memory effect—called a quantum birthmark—that resists thermodynamic equilibration. [Physics 19, 125] Published Thu Sep 10, 2026

To monitor the amount and type of nuclear material at power plants and weapons facilities, scientists look for a special signal—the unique pattern of gamma rays emitted by specific radioactive elements. However, some of these elements also emit X-rays in the same energy range as the gamma-ray emissions, masking the signal and making nuclear stockpiles harder to assess.

Over a decade ago, the Fermi satellite detected an excess of gamma-ray emissions in the galactic center. Potential explanations included Sgr. A*, the Milky Way's SMBH, pulsars, and even self-annihilating dark matter. There's no clear answer yet, since the region is so difficult to observe. But recent research shows that dark matter can't be ruled out.

Within tiny halos of light clinging to a vanishingly thin wisp of optical fiber, scientist Jongmin Lee guides atoms like marbles through a narrow pipe. Rock the fiber and the atoms shift side by side; they just don't fall off. But don't be deceived by the seemingly delicate nature of his experiment. Lee is exploring how to measure motion precisely in rough-and-tumble environments.

On Sept. 10, 2011, NASA's GRAIL spacecraft launched on a mission to the moon! Here's why the moon gravity mapping mission mattered.

Quantum technologies are poised to transform fields ranging from medicine and sensing to computing and communications by manipulating the energy states of atoms and molecules. These manipulations are achieved by controlling quantum states with laser pulses.

So far, quantum computers have been held back by their extreme sensitivity to errors and external disturbances. The longer a quantum operation takes, the greater the risk of computational errors.

For years, scientists have relied primarily on radio imaging from techniques like very long baseline interferometry (VLBI) to study jets from the active galactic nuclei of supermassive black holes. This allows for the detection of broad, unresolved features, called components, moving at what appear to be faster-than-light speeds. However, traditional imaging has poor resolution and treats each observation as a separate snapshot in time, limiting information about how the features move.

A research team at the University of Vienna led by physicist Jani Kotakoski demonstrates how the shape of nanopores in hexagonal boron nitride—the electrically insulating counterpart to graphene, also known as "white graphene"—can be precisely controlled at the atomic level.

A catalog of almost 3,000 white dwarfs that exploded as type Ia supernovas after overfeeding on companion stars indicates that dark energy is changing over time.

The James Webb Space Telescope (JWST) has opened up many wonders of the cosmos to scientists since it began its science operations a few years ago. But one thing that it hasn’t done is find an “exomoon”. These, as yet still theoretical, moons orbit exoplanets in other star systems, and JWST was supposed to find a plethora of them. However, so far it has found precisely none. It seems the cause is noise in the telescope’s instrumentation or noise from the star itself. But a new paper, available in pre-print form on arXiv from David Kipping, an astronomer at Columbia and also the host of the Cool Worlds YouTube Channel, shows how JWST can, in fact, find an exomoon. It likely just has to look for one in the same place repeatedly.

Debate span atomic and particle physics The post Doubts cast on ‘superradiant neutrino laser’ proposal appeared first on Physics World.

The joint BepiColombo mission of the European Space Agency (ESA) and the Japan Aerospace Exploration Agency (JAXA) is settling into orbit around Mercury after an eight-year journey. In early September, BepiColombo's two orbiters, the Mercury Planetary Orbiter and the Mercury Magnetospheric Orbiter, separated from the transfer module. The orbiters will enter Mercury's orbit in November and separate from each other in December.

Superconductors are materials that carry electricity with zero resistance below specific temperatures. Many of these materials become superconducting at very low temperatures, yet some enter superconducting phases at higher temperatures.

SkyWater Technology has launched SkyWater Quantum Solutions, a dedicated merchant supplier offering focused on semiconductor process development, integration, and manufacturing. The offering will provide semiconductor solutions for quantum computing, networking, and sensing applications, with the aim of accelerating customers’ time to market, according to SkyWater. The newly established business will address applications across quantum computing, networking, sensing, and timing. It will cater to a range of technologies such as photonics, superconducting devices, materials, interconnects, packaging, and heterogeneous integration.brings together SkyWater’s semiconductor process development and manufacturing capabilities in...

New work will help advance the development of more reliable free-space networks The post Skyrmion topology makes long-distance optical communications more robust appeared first on Physics World.

In September 2022, astronomers noticed a perplexing feature on an image of a galaxy around 7.5 billion light-years

Placing two lattices - like window screens - on top of each other and twisting one layer compared to the other creates intriguing patterns. In fact, there are toys based on the designs that emerge, called moire patterns. But moire patterns aren't just visually interesting. At the nanoscale, this phenomenon reveals properties that could form a foundation for new technologies.

Those "Little Red Dots" discovered by the James Webb Space Telescope, galaxies that existed during the very early Universe, could be sending neutrino particles that are reaching us today.

An electrical fingerprint found on tiny particles in the blood may help detect signs of pancreatic cancer that are often overlooked, according to new research from Rice University. The researchers developed a device that separates these particles based on their electrical charge, making cancer-associated signals more visible.

For decades, physicists have searched for dark matter, the invisible substance thought to make up roughly 85% of all matter in the universe. Although its gravitational influence shapes galaxies and the large-scale structure of the cosmos, dark matter has never been directly detected. Now, an international team has identified a new class of quantum materials that could dramatically improve the search for some of the lightest and most elusive forms of dark matter.

Researchers at the National Graphene Institute have shown that naturally occurring channels within a common clay mineral can respond to pressure, voltage and pH, offering possibilities for controlling the movement of ions through extremely small, confined spaces. The study, published in Advanced Materials, focuses on vermiculite, a naturally abundant layered clay whose structure contains channels only a few angstroms high, providing naturally confined pathways through which ions can move.

A team of scientists from Oak Ridge National Laboratory (ORNL), Cleveland Clinic and IBM (NYSE: IBM), has calculated nine

(Fe0.63Ni0.3Pd0.07)3P, or FNPP, is a magnetic material that exhibits complex magnetic structures even at room temperature. This makes the material of interest for spintronics, a field that could enable data processing with significantly lower energy consumption. One potential application is novel magnetic memory devices.

Until just over a decade ago, ring systems were thought to be exclusive to the giant planets of the solar system, such as Jupiter, Saturn, Uranus and Neptune. However, in 2013, a small body barely 250 kilometers (155 miles) in diameter, located at nearly 17 times the Earth–sun distance, joined this small group. The object is Chariklo, a small body orbiting between Saturn and Uranus, around which astronomers discovered two dense rings.

Researchers combined 100-plus images of a single black hole into an AI-powered video to chart the activity of a mighty blazar's jet.

A few hundred million years after the Big Bang, the first stars ignited—literally the "let there be light" moment for the universe. Now known to astronomers as Population III, or Pop III, stars, these giants were very different from the stars we know today. They formed from pristine hydrogen and helium, with almost no "metal" (i.e., other elements) holding them back. They were also huge, growing to tens to hundreds of times larger than the sun. And they died young, in many cases collapsing into the universe's earliest black holes.

A new analysis of more than 1,700 supernovae is questioning whether the universe is really accelerating at all. After accounting for the ages of the stars that produce these explosions, researchers found signs that cosmic expansion may actually be slowing. They also argue that the apparent acceleration changes with direction, which would be difficult to explain with dark energy. Other cosmologists dispute the conclusion, setting up a major test for upcoming observatories.

Scientists found that a tiny atomic structure that forms on nickel oxide during methane conversion is more effective than the metallic nickel long believed to drive the reaction. The discovery allowed a low-nickel catalyst to rival one containing 10 times more metal, potentially opening the door to cheaper and more efficient industrial catalysts.

Electronic voting, the use of electronic systems to cast, record or count votes, could potentially simplify the process of electing new political leaders or other representatives. While some countries have already started using internet-connected devices or electronic voting machines at polling stations, the trustworthiness, security and anonymity of electronic voting systems are still widely debated.

A photon from the biggest cosmic explosion since the Big Bang, the gamma-ray burst nicknamed "the BOAT," should not have reached Earth, according to Einstein. Now scientists may know how it did.

The two researchers have won a prestigious Lasker Award. Their findings laid the groundwork for a new drug that addresses the sleep disorder’s root cause.

The two researchers have won a prestigious Lasker Award. Their findings laid the groundwork for a new drug that addresses the sleep disorder’s root cause.

Astronomers have found the first direct evidence that a wandering black hole can feed itself by dragging gas along in its wake as it moves through its galaxy. It's the first direct evidence of an accretion channel long predicted in theory but never before observed. The paper describing this discovery was posted to the arXiv preprint server on Aug. 11.

A few hundred million years after the Big Bang, the first stars ignited - literally the “let there be light” moment for the universe. Now known to astronomers as Population III, or Pop III, stars, these giants were very different from the stars we know today. They were formed out of pristine hydrogen and helium, with almost no “metal” (i.e. other elements) holding them back. They were also huge, growing to tens to hundreds of times larger than the Sun. And they died young, in many cases collapsing into the universe’s earliest black holes. Some of those black holes even partnered up, eventually colliding into one another and creating gravitational waves that, if we have instruments sensitive enough, we could potentially detect. A new study led by astrophysicist N.V. Krishnendu of the University of Birmingham and their colleagues shows just how much we can learn

Students need to experiment with real quantum-computing systems, says Alex Krasnok The post Universities should judge quantum-computing investments by what students learn appeared first on Physics World.

Imaginary numbers first appeared in the 16th century as a mathematical invention, introduced to solve equations that real numbers could not. As the name implies, many treated them as kind of trick to get results, rather than an underlying truth about the nature of reality. Although highly controversial at the time, these numbers are now ubiquitous […] The post Real-number quantum theory can be more wrong than you thought appeared first on Physics World.

“ ‘This is dangerous’: slime moulds and the bitter debate over the nature of intelligence — Scientists are battling over whether supposedly simple organisms should be considered ‘intelligent’. The outcome could reshape our understanding of the natural world – and our own place within it”. So says the headline of a report by Samanth Subramanian, […]

An unexpected material comes to the rescue of 2D material transfer The post Cling film helps stamp two-dimensional materials onto patterned surfaces appeared first on Physics World.

Cryo-electron microscopy (cryo-EM) has become a powerful tool for determining the structures of proteins, viruses and molecular complexes at near-atomic resolution. However, achievable resolution is fundamentally limited by the Nyquist sampling frequency, which is determined by detector pixel size and microscope magnification. Once this physical limit is reached, researchers typically must recollect data at higher magnification, requiring additional microscope time, increased storage capacity and often fewer particles per image.

Nearly every galaxy has a supermassive black hole. The few that don't have had theirs ejected during a galactic collision. That's because galaxies and their black holes have formed hand in hand. There is still some debate as to whether galaxies formed around the seeds of supermassive black holes or the other way around, but there is plenty of evidence to support the idea that the two evolve together.

Helium—the lightest atom that can be laser-cooled and controlled—powers a new design for high-powered, stable quantum computers.

Mathematicians at OpenAI showed that the Navier-Stokes equations, which describe how fluids flow, can sometimes “blow up.” But the massive result is not without controversy. The post AI Has Solved One of Math’s $1 Million Millennium Prize Problems first appeared on Quanta Magazine

In 2022 researchers detected a very odd photon from an enormous gamma-ray burst that should have been destroyed on its way to Earth

Active black holes are easy to detect. Their superheated accretion disks emit bright X-rays, and the jets streaming from their poles are easily seen at visible and radio wavelengths. But most stellar-mass black holes are inactive. They either drift through the galaxy alone or orbit a companion star without consuming its material. We can't observe inactive black holes directly. We can only observe their effects on nearby objects. We currently know of three such black holes thanks to the Gaia spacecraft.

We know the universe is constantly expanding. We also know that gravitationally bound objects, such as solar systems and black holes, seem to be immune to that expansion. But a new paper by theoretical physicists Valerio Faraoni and Massimiliano Rinaldi challenges that assumption. They suggest that black holes can't just ignore the expanding universe around them. Instead, they have to expand along with it. Their paper is posted to the arXiv preprint server.

New observations find that a few supermassive black holes are unexpectedly large given the size of their galaxies. This suggests the connection between black holes and galaxies isn't as strong as we thought.

For decades, physicists have worked to prove the strange predictions of quantum mechanics with real experiments. As quantum computers have grown more powerful, researchers have devised increasingly sophisticated ways to test whether these machines are truly harnessing quantum effects—but every method so far has run into limits.

Superfluid helium could offer a new way to tackle one of the biggest challenges in scaling up quantum computers, say researchers from the University of Surrey. The research team has introduced a conceptual design for a new type of qubit that could be much less vulnerable to errors.

A more realistic quantum model has revealed evidence that strange, nearly immobile quasiparticles called fractons could exist in solid materials. Their inability to move freely could make them promising building blocks for unusually robust quantum information storage.

Physicists have directly observed a long-predicted quantum effect of gravity, putting one of Einstein’s foundational ideas to a striking new test. Using ultracold atoms, researchers split an atom’s quantum wave so that one part was held in place while the other fell freely under gravity, then reunited the two to measure the tiny difference that emerged.

How did a photon survive a journey of more than 2 billion light-years when, according to known physics, it should have been absorbed long before reaching Earth? This is the question at the heart of a new study by Giorgio Galanti (INAF) and Marco Roncadelli (INFN), accepted for publication in Physical Review Letters.

Heavy particle could be dominated by gluons The post Missing decay at BESIII points to long-sought glueball appeared first on Physics World.

The most comprehensive catalog of exploding white dwarf stars ever assembled has revealed new clues about dark energy, the mysterious force driving the universe's accelerating expansion. Researchers at The University of Queensland's School of Mathematics and Physics have led a global effort to compile a dataset containing information on 2,884 Type Ia supernovae used to measure cosmic distances.

Scientists have spotted the first hints that Einstein's formulation of gravity operates in the quantum realm.

Neutrinos are pervasive yet intangible particles that permeate the universe, streaming through whole planets, stars, and our bodies by the trillions each second. The elementary particles are often described as “ghostly” due to their near-zero mass and their elusive nature, as they have very little interaction with normal matter. Since their discovery in 1956, neutrinos have continued to surprise physicists with their unexpected properties and behaviors. For instance, the particles come in multiple “flavors” and can morph from one to the other. Neutrinos may also be their own anti-particle. And their extremely weak interactions make them close to impossible to detect. Last year, scientists seemed to add...

A new study finds that two early-universe objects thought to be faint quasars are actually extraordinarily luminous galaxies powered by bursts of star formation. James Webb Space Telescope observations of the galaxies, seen when the universe was less than a billion years old, reveal signatures of extremely massive stars, including some potentially more than 200 times the mass of the sun. The paper outlining this discovery was posted to the arXiv preprint server on Aug. 18.

We know the universe is constantly expanding. We also know that gravitationally bound objects, such as solar systems and black holes, seem to be immune to that expansion. But a new paper, available in pre-print on arXiv by theoretical physicists Valerio Faraoni and Massimiliano Rinaldi challenges that assumption. They suggest that black holes can’t just ignore the expanding universe around them. Instead they have to expand along with it.

Using a crystal as an atomic-scale interferometer enables direct visualization of local atomic arrangements The post Researchers shrink double-slit experiment to atomic scale appeared first on Physics World.

Jesse Han is becoming good at winning unusual awards. In 2017 he traveled to Harvard University, to receive the 2017 Ig Nobel Fluid Dynamics Prize, for studying the dynamics of liquid-sloshing, to learn what happens when a person walks backwards while carrying a cup of coffee. [His research on that was published in  study called […]

We usually think of auroras as beautiful lights in the night sky. I see them as visible traces of a connection between the sun, Earth's magnetic field and the atmosphere. This led me to an origin-of-life question: Could the planetary structure that produces auroras also have organized chemical reactions on early Earth?

By Alius Noreika Key takeaways The claim, and the answer that arrived two weeks later Jay Gambetta, director of

Physicists at the BESIII Collaboration have breathed new life into a decades-old test of one of the Standard Model's most important ideas, using a technique that had gone almost untouched by experimenters for 35 years.

Scientists from Tokyo Metropolitan University have found a way to make plasma more effective for its wide-ranging uses, from antimicrobial applications to surface conditioning in the semiconductor industry. They mapped the production of atomic oxygen, a key ingredient of oxygen plasma, while a high voltage was applied across oxygen gas.

Gaia has discovered three stellar mass black holes, each with a small stellar companion. For two of these systems the companions orbit closer that we would expect. Just how these systems form is a bit of a mysteries, but there are clues.

Tiny, soft polymer particles—known as microgels—can help to stabilize extremely thin liquid jets. How this works is the finding of a study led by researchers at TU Darmstadt, which has been published in Nature Communications. The findings could be of interest for the development of needle-free medical injection systems.

Current gravitational-wave observatories aren't sensitive enough to capture the gravitational waves of binary stars. They can only see the gravitational chirps of black holes just as they are merging. But that will change as more sensitive instruments are developed. Recently, a team of astronomers discovered a binary white dwarf system that could be a good target for advanced gravitational-wave observatories.

Donald Trump claims to have ended eight wars, sparking criticism. His focus on a Nobel Peace Prize overshadows ongoing Russia-Ukraine peace efforts, raising questions about his priorities.

American Regent recalls Epinephrine Injection vials due to contamination with glass and plastic particles, posing serious health risks. No harm reported yet, but users are advised to stop use immediately.

When two black holes crash together and merge, the newly formed black hole rings like a bell, sending out gravitational waves with specific frequencies that fade over time. This brief, fading pattern of waves is called ringdown, and it may hold secrets about what is hiding around black holes.

Two superconducting qubits, a metre of cable apart, have been driven into an entangled state not in spite of their environment, but by it The post Noise that entangles may accelerate the dawn of quantum technologies appeared first on Physics World.

Superconductors are materials that conduct electricity without electrical resistance when cooled below a specific critical temperature. These materials have proved promising for the development of various technologies, including medical imaging instruments, particle accelerators, ultrasensitive detectors and quantum processors.

Lancaster University researchers are spearheading a major new European research initiative that aims to redefine how artificial intelligence

Future gravitational wave observatories will be able to see the gravitational waves of close-orbiting binary stars. A newly studied white dwarf system could be one of the first systems we observe.

As the electronics in our technology keep shrinking, traditional silicon-based chips are approaching their fundamental physical limits. Yet the wires connecting them might be able to shrink beyond conventional dimensions, as scientists have created one of the longest single-atom copper chains to date that could serve as molecular wires.

Princeton researchers have tested an AI system that can monitor and control fusion plasma in milliseconds, reacting far faster than a human operator. In one experiment, it predicted a damaging instability about 200 milliseconds before it appeared and adjusted the plasma to stop it from forming.

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.

Scientists have uncovered an unusual form of electron behavior in zirconium pentatelluride, a quantum material that can act as both an insulator and a conductor. Under temperatures near absolute zero and magnetic fields reaching 60 tesla, electrons produced quantum oscillations that continued even after conventional physics predicted they should disappear.

A joint research team from NIMS and the University of Tokyo has developed a new composite in which three-dimensional nano-interfaces are distributed throughout the material by coating the surfaces of magnetic-insulator powders with a metal and sintering them. Using this structure, the team succeeded in observing thermoelectric conversion driven by spins in an insulator, a phenomenon previously observed only at nanoscale thin-film interfaces, in a macroscale material.

In recent years, scientists have developed methods to measure a cell's transcriptome, or all the RNA produced by a cell, to study the cell's identity and genetic activity. However, these methods rely on killing the cell to access the bits of RNA within and offer only a one-time snapshot.

In a new Nature Communications study, researchers developed a universal scaling framework for the strength of granular asteroids, showing that their tensile strength can be predicted from the size and shape of their constituent particles.

Detecting radiation is key to technologies ranging from particle accelerators and scientific instruments to medical imaging and security screening. But current detectors must often make trade-offs, providing signals that are strong but slow or fast but weak. The trade-off between signal strength and speed can limit precision detection.

NASA says asteroid Apophis will skim closer than many satellites on Friday 13 April 2029, a rare flyby that is safe but expected to alter the rock's spin.

Author(s): Ryan WilkinsonA precisely engineered material interface can host the spin currents needed for practical spin-based electronics. [Physics 19, s108] Published Thu Sep 03, 2026

The 2026 Ig Nobel Prize winners were introduced at the 36th First Annual Ig Nobel Prize ceremony, in Zurich, Switzerland, on September 3, 2026

A flash detected by the LUX-ZEPLIN dark matter detector in South Dakota intrigues physicists, offering a potential hint of dark matter, though alternative explanations remain possible.

Babies smell wonderful—at least to their parents. An international research team of Ilona Croy, Tomasz Frackowiak, Thomas Hummel and Agnieszka Sorokowska investigated why teenagers lose this special olfactory advantage and has now been awarded an Ig Nobel Prize for the research.

Cross-disciplinary research at Perimeter Institute and University of Maryland shows that dark photons could be lurking in more places than previously thought.

Physicists have proven a 100-year-old prediction of relativity by showing that Einstein's equivalence principle holds at quantum scales.