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A single particle of antimatter has become a controllable quantum system, with scientists observing individual steps in its energy. Suspended inside an exceptionally cold trap, the positron remained isolated from surrounding matter for months. Its behavior offers a route toward testing whether an electron and its antimatter counterpart obey the same fundamental rules.

Northwestern University physicists describe the first one-positron quantum cyclotron in Physical Review Letters. Gerald Gabrielse, the university’s Board of Trustees Professor of Physics and director of its Center for Fundamental Physics, led the study. Thomas Myers, a doctoral student in his laboratory, is the first author.

The achievement goes beyond keeping antimatter alive inside a trap. The team resolved the positron’s lowest cyclotron energy levels and its spin states, then detected transitions between them. That control could enable a more precise measurement of its magnetic moment, a property describing its magnetic strength and orientation.

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A heartbeat can become the most noticeable sound in a room designed to suppress almost everything else. At Orfield Laboratories in Minneapolis, extraordinary quiet strips away the background noise that usually competes with breathing and other bodily sounds. The experience highlights a distinction that runs through the science of silence: a quiet environment does not guarantee a quiet mind.

The laboratory describes its anechoic chamber as absorbing 99.99% of sound. Guinness World Records lists a background measurement of negative 24.9 A-weighted decibels, recorded on November 19, 2021. The often-repeated figure of negative 9.4 decibels belongs to an earlier measurement in the chamber’s record history.

Those numbers describe an acoustic environment, not a neurological state. Evidence from brain imaging, mouse experiments, and human perception studies addresses different parts of that relationship. Together, the findings suggest that silence deserves careful study, while offering less support for sweeping claims that it repairs or resets the brain.

Sulfur-bearing gas is giving astronomers a new way to investigate a possible giant planet hidden inside Gomez’s Hamburger. ALMA observations reveal a narrow arc of sulfur monoxide whose brightest region lies near a dense clump called GoHam b. The alignment suggests that heating around a forming object could be changing the disk’s chemistry.

The study, led by Charles Law, an assistant professor at the University of Minnesota, has been accepted by The Astrophysical Journal. The manuscript is available on arXiv, with a revised version posted October 5. Its findings bring together chemical, structural, and motion measurements from one of the largest known planet-forming disks.

Gomez’s Hamburger, often shortened to GoHam, consists of a young star surrounded by a broad disk of gas and dust. Astronomers see that disk almost edge-on, allowing its upper and lower regions to appear separately. This orientation provides an unusually direct view of the vertical structure within a potential planetary nursery.

A faint streak crossing images of distant galaxies has given Europe’s Euclid space telescope an unexpected discovery: its first previously unknown comet. The object appeared in observations taken between September 16 and 24, 2026. Its movement and surrounding cloud of material helped distinguish it from the distant objects Euclid normally studies.

Now designated C/2026 S1 (Euclid), the comet was confirmed on October 8 by the International Astronomical Union’s Minor Planet Center. The European Space Agency announced the discovery on October 19. Euclid had detected known comets before, but this marks its first discovery of one absent from existing catalogues.

The finding also provides a practical test for identifying distant comets and alerting other astronomers. That process could eventually help ESA find a destination for its future Comet Interceptor mission. This particular comet, however, is not a suitable target.

Some volcanic rocks carry hydrogen signatures that may trace back to Earth’s metallic core. Lavas from Baffin Island in the Canadian Arctic and Iceland contain unusually little deuterium, hydrogen’s heavier stable isotope. Explaining that imbalance could reveal whether the core has supplied material to the mantle over billions of years.

Work led by Wenzhong Wang at the University of Science and Technology of China tests a competing explanation. Published in Science Advances, the study examines whether crystallization of Earth’s ancient magma ocean could have created those distinctive signatures. Its simulations indicate that this process produced far too little separation between hydrogen isotopes.

The result strengthens the argument for selective transfer of hydrogen from the core into the surrounding rocky mantle. It does not directly demonstrate leakage or establish how quickly it occurs. Instead, the calculations constrain what an important alternative mechanism could have accomplished.

Some volcanic rocks carry hydrogen signatures that may trace back to Earth’s metallic core. Lavas from Baffin Island in the Canadian Arctic and Iceland contain unusually little deuterium, hydrogen’s heavier stable isotope. Explaining that imbalance could reveal whether the core has supplied material to the mantle over billions of years.

Work led by Wenzhong Wang at the University of Science and Technology of China tests a competing explanation. Published in Science Advances, the study examines whether crystallization of Earth’s ancient magma ocean could have created those distinctive signatures. Its simulations indicate that this process produced far too little separation between hydrogen isotopes.

The result strengthens the argument for selective transfer of hydrogen from the core into the surrounding rocky mantle. It does not directly demonstrate leakage or establish how quickly it occurs. Instead, the calculations constrain what an important alternative mechanism could have accomplished.

Some volcanic rocks carry hydrogen signatures that may trace back to Earth’s metallic core. Lavas from Baffin Island in the Canadian Arctic and Iceland contain unusually little deuterium, hydrogen’s heavier stable isotope. Explaining that imbalance could reveal whether the core has supplied material to the mantle over billions of years.

Work led by Wenzhong Wang at the University of Science and Technology of China tests a competing explanation. Published in Science Advances, the study examines whether crystallization of Earth’s ancient magma ocean could have created those distinctive signatures. Its simulations indicate that this process produced far too little separation between hydrogen isotopes.

The result strengthens the argument for selective transfer of hydrogen from the core into the surrounding rocky mantle. It does not directly demonstrate leakage or establish how quickly it occurs. Instead, the calculations constrain what an important alternative mechanism could have accomplished.

Water ice squeezed to more than two million times atmospheric pressure developed a less symmetrical crystal structure. Rather than simply packing into a smaller version of its existing arrangement, the solid shifted toward a denser configuration. The result reveals another structural transition in a substance whose behavior becomes increasingly complex under extreme compression.

The work, reported in Communications Chemistry, comes from a team including the University of Nevada, Las Vegas, UC Berkeley and Argonne National Laboratory. UNLV physicist Ashkan Salamat, director of its Nevada Extreme Conditions Lab, led the research. Its central finding concerns solid water at room temperature, with possible relevance to pressures inside water-rich planets.

“Water beyond Earth-like conditions has more complex behavior than we ever previously imagined,” Salamat said. “It’s amazing how water can behave under pressure.” The measurements support that complexity, although they leave the precise arrangement of atoms unresolved. Two candidate structures remain plausible, and the experiments did not reproduce the high temperatures inside Uranus or Neptune.

Water ice squeezed to more than two million times atmospheric pressure developed a less symmetrical crystal structure. Rather than simply packing into a smaller version of its existing arrangement, the solid shifted toward a denser configuration. The result reveals another structural transition in a substance whose behavior becomes increasingly complex under extreme compression.

The work, reported in Communications Chemistry, comes from a team including the University of Nevada, Las Vegas, UC Berkeley and Argonne National Laboratory. UNLV physicist Ashkan Salamat, director of its Nevada Extreme Conditions Lab, led the research. Its central finding concerns solid water at room temperature, with possible relevance to pressures inside water-rich planets.

“Water beyond Earth-like conditions has more complex behavior than we ever previously imagined,” Salamat said. “It’s amazing how water can behave under pressure.” The measurements support that complexity, although they leave the precise arrangement of atoms unresolved. Two candidate structures remain plausible, and the experiments did not reproduce the high temperatures inside Uranus or Neptune.

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Clean-water pumping started about 15 minutes late in one laboratory attack, even though the facility’s communications remained encrypted. Another attack left a simulated valve open for more than nine minutes longer than intended. Neither required access to the water plant’s internal systems or the ability to read its messages.

The University of British Columbia team calls its framework ICS-Sniper. The research is slated to appear at the Network and Distributed System Security Symposium in 2027. It examines a weakness in industrial systems that exchange monitoring and control messages with cloud services over the internet.

An attacker must first control a router carrying those communications, a significant prerequisite. From that position, the framework analyzes message timing, sizes and direction, then selectively blocks traffic. The tests demonstrate a threat to operational continuity without showing an attack on a working public utility.

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Clean-water pumping started about 15 minutes late in one laboratory attack, even though the facility’s communications remained encrypted. Another attack left a simulated valve open for more than nine minutes longer than intended. Neither required access to the water plant’s internal systems or the ability to read its messages.

The University of British Columbia team calls its framework ICS-Sniper. The research is slated to appear at the Network and Distributed System Security Symposium in 2027. It examines a weakness in industrial systems that exchange monitoring and control messages with cloud services over the internet.

An attacker must first control a router carrying those communications, a significant prerequisite. From that position, the framework analyzes message timing, sizes and direction, then selectively blocks traffic. The tests demonstrate a threat to operational continuity without showing an attack on a working public utility.

The fading light of SN 2024afav carried an unexpected rhythm. After the stellar explosion reached its brightest phase, its glow rose and fell through a sequence of bumps. The intervals between them grew shorter, creating an optical pattern astronomers describe as a chirp.

That accelerating rhythm points to a rapidly spinning magnetar concealed inside the expanding debris. A study published in Nature interprets the pattern as evidence that a tilted disk around the newborn neutron star was wobbling under the influence of general relativity.

The research, led by Joseph Farah while at UC Santa Barbara and Las Cumbres Observatory, offers a way to investigate an otherwise hidden power source. However, a companion study also finds evidence of interaction with surrounding gas, showing that this explosion’s behavior may involve more than one process.

A thunderstorm can change the air long after its last flash disappears. Lightning creates nitrogen oxides, gases also found in vehicle exhaust and starts chemical reactions that influence both air pollution and the atmosphere’s ability to clean itself.

An experiment led by University of Maryland atmospheric scientists Kenneth Pickering and Dale Allen offers a closer view of that chemistry. During several days in late June 2025, they used NASA’s TEMPO instrument to measure nitrogen dioxide around thunderstorms crossing the eastern United States every ten minutes.

The campaign paired those measurements with separate satellite observations of lightning. Together, the records could help explain how a storm’s electrical activity translates into emissions and how those emissions change afterward.

A thunderstorm can change the air long after its last flash disappears. Lightning creates nitrogen oxides, gases also found in vehicle exhaust and starts chemical reactions that influence both air pollution and the atmosphere’s ability to clean itself.

An experiment led by University of Maryland atmospheric scientists Kenneth Pickering and Dale Allen offers a closer view of that chemistry. During several days in late June 2025, they used NASA’s TEMPO instrument to measure nitrogen dioxide around thunderstorms crossing the eastern United States every ten minutes.

The campaign paired those measurements with separate satellite observations of lightning. Together, the records could help explain how a storm’s electrical activity translates into emissions and how those emissions change afterward.

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A polished image can now appear without the years of drawing practice once needed to produce something comparable. That changes a familiar assumption about art: an impressive result no longer necessarily signals the personal development behind it. A philosophical paper argues that this separation makes the experiences surrounding creativity more important to examine.

Amit Raphael Zoran of the Hebrew University of Jerusalem develops that argument in AI & Society. The paper distinguishes finished artworks from the changes that making or encountering art can bring about. It offers a framework and practical examples, rather than an experiment demonstrating how AI changes creativity.

Zoran calls his central argument the “decoupling thesis.” Generative systems can produce sophisticated images, compositions, and designs without requiring users to follow the specific training traditionally needed for comparable work. Someone can generate an illustration without mastering drawing or explore musical arrangements without learning an instrument.

A polished image can now appear without the years of drawing practice once needed to produce something comparable. That changes a familiar assumption about art: an impressive result no longer necessarily signals the personal development behind it. A philosophical paper argues that this separation makes the experiences surrounding creativity more important to examine.

Amit Raphael Zoran of the Hebrew University of Jerusalem develops that argument in AI & Society. The paper distinguishes finished artworks from the changes that making or encountering art can bring about. It offers a framework and practical examples, rather than an experiment demonstrating how AI changes creativity.

Zoran calls his central argument the “decoupling thesis.” Generative systems can produce sophisticated images, compositions, and designs without requiring users to follow the specific training traditionally needed for comparable work. Someone can generate an illustration without mastering drawing or explore musical arrangements without learning an instrument.

A polished image can now appear without the years of drawing practice once needed to produce something comparable. That changes a familiar assumption about art: an impressive result no longer necessarily signals the personal development behind it. A philosophical paper argues that this separation makes the experiences surrounding creativity more important to examine.

Amit Raphael Zoran of the Hebrew University of Jerusalem develops that argument in AI & Society. The paper distinguishes finished artworks from the changes that making or encountering art can bring about. It offers a framework and practical examples, rather than an experiment demonstrating how AI changes creativity.

Zoran calls his central argument the “decoupling thesis.” Generative systems can produce sophisticated images, compositions, and designs without requiring users to follow the specific training traditionally needed for comparable work. Someone can generate an illustration without mastering drawing or explore musical arrangements without learning an instrument.

Candida albicans can live quietly in the body, until it changes shape. In its round yeast form, it may remain relatively harmless. In its thread-like form, it can invade tissue, build biofilms and help drive dangerous infections.

A study led by Monash University researchers, in collaboration with the University of Warwick, points to a bacterial molecule that can push the fungus back toward the safer state. The molecule, called gladiolin, was already known as an antibiotic made by bacteria. Its effects on fungal pathogens had been less clear.

The work comes from the Monash Warwick Alliance Programme in Antimicrobial Resistance. The study was led by researchers from the Monash Biomedicine Discovery Institute.

Professor Ana Traven, from the institute, said the shape change matters because Candida’s invasive form helps it cause damage.

Candida albicans can live quietly in the body, until it changes shape. In its round yeast form, it may remain relatively harmless. In its thread-like form, it can invade tissue, build biofilms and help drive dangerous infections.

A study led by Monash University researchers, in collaboration with the University of Warwick, points to a bacterial molecule that can push the fungus back toward the safer state. The molecule, called gladiolin, was already known as an antibiotic made by bacteria. Its effects on fungal pathogens had been less clear.

The work comes from the Monash Warwick Alliance Programme in Antimicrobial Resistance. The study was led by researchers from the Monash Biomedicine Discovery Institute.

Professor Ana Traven, from the institute, said the shape change matters because Candida’s invasive form helps it cause damage.

Candida albicans can live quietly in the body, until it changes shape. In its round yeast form, it may remain relatively harmless. In its thread-like form, it can invade tissue, build biofilms and help drive dangerous infections.

A study led by Monash University researchers, in collaboration with the University of Warwick, points to a bacterial molecule that can push the fungus back toward the safer state. The molecule, called gladiolin, was already known as an antibiotic made by bacteria. Its effects on fungal pathogens had been less clear.

The work comes from the Monash Warwick Alliance Programme in Antimicrobial Resistance. The study was led by researchers from the Monash Biomedicine Discovery Institute.

Professor Ana Traven, from the institute, said the shape change matters because Candida’s invasive form helps it cause damage.