Articles tagged with Magnetic Fields
Voyager 1's journey into interstellar space has been clarified by a UNH-led study, revealing that the spacecraft crossed the heliopause but is now navigating a 'muddied' magnetic field region. This discovery confirms two key findings: the center of the IBEX ribbon is the direction of the interstellar magnetic field and Voyager 1 is bey...
Researchers have optimized a novel wall-less Hall thruster design, suitable for long-duration deep space missions. The new design enables scientists to observe hidden plasma regions, facilitating investigation of plasma instability and anomalous electron transport.
Researchers use asteroseismology to track waves through stars and determine internal properties, finding nearly a million times stronger magnetic fields than typical refrigerator magnets. This technique allows probing of previously hidden regions of stars.
Researchers have developed a new method to probe the internal magnetic fields of red giant stars using asteroseismology. This technique involves analyzing variations in light emitted from a star as due to sound waves from its interior, revealing strong internal magnetic fields in these stars.
A study of edge-on spiral galaxies has revealed that halos of cosmic rays and magnetic fields are much more common than previously thought. Researchers used the VLA to detect faint radio emission, providing valuable information on star formation, winds from exploding stars, and galaxy magnetic fields.
Researchers from NIST and UC Davis have successfully created stable magnetic skyrmions under ambient conditions, opening up possibilities for novel data storage and nanoelectronic devices. The breakthrough enables the use of skyrmions in information memory systems with improved elasticity and resistance to external influences.
Researchers found that Eurasian reed warblers use a geomagnetic map to navigate during migrations. The birds can reorient themselves towards their original destination even after being exposed to a different magnetic field.
A team of scientists analyzed observations of sunspots as they formed using data from Hinode, SDO, and IRIS satellites. They modeled the observations using state-of-the-art numerical simulations performed on the Pleiades supercomputer at NASA Ames Research Center. The study reveals that the territorial struggles between magnetic bundle...
Researchers use Raman spectroscopy to measure strain at each pixel on graphene's surface, enabling quick and accurate monitoring of defects. This breakthrough could help prevent defects caused by strain in high-quality graphene production.
Researchers found an O-type star, NGC 1624-2, has the largest known magnetosphere, trapping gas and creating a massive aura of hot, dense plasma. The star's powerful stellar winds are up to 100,000 times denser than our Sun's solar wind.
Researchers found that the sample's resistance changes nonlinearly with an increasing magnetic field, suggesting a liquid-to-gas-like transition. This discovery could lead to the creation of faster and more compact electronics using Mott transition.
A PhD candidate at Queen's University has made a groundbreaking discovery of the first massive binary star with magnetic fields. The research provides new insights into the origin of magnetism in massive stars and may help explain why only 10% of these stars have strong magnetic fields.
Researchers at Princeton University have detected the long-sought chiral anomaly in a metallic compound of sodium and bismuth. The finding increases conductivity and may lead to more energy-efficient electronic devices, as impurities scatter current-carrying electrons, causing energy loss.
Researchers at Universitat Autonoma de Barcelona have successfully created a magnetic wormhole connecting two regions of space. This breakthrough technology could lead to more comfortable MRI scans and new medical applications.
Researchers at UC San Diego developed a new wireless communication technique that sends magnetic signals through the human body, offering lower power consumption and improved security compared to existing Bluetooth technology. The technique shows promising results with path losses up to 10 million times lower than Bluetooth radios.
Researchers manipulated a steel gray mineral to create holes in thin films, which showed magnetic properties at their edges. The discovery raised the metal-to-insulator phase transition temperature of the film.
Researchers from the University of New Hampshire's Space Science Center use MESSENGER spacecraft data to investigate interplanetary coronal mass ejections, improving space weather prediction capabilities. The study sheds light on the speed and deceleration of ICMEs after their launch from the sun.
Researchers at MIT propose a compact tokamak fusion reactor that could produce significant power in a decade. The new design uses commercially available superconductors to achieve higher magnetic fields, enabling more efficient fusion reactions.
A small tilt of magnets makes them viable memory chips, opening the door to a memory system that can be packed onto a microprocessor. This breakthrough could lead to computers that turn on instantly and operate with greater speed and significantly less power.
Researchers at Toyohashi University of Technology have developed a practical magnetic metallic contaminant detector using three high-Tc RF superconducting quantum interference devices for food inspection. The detection technique is based on recording the remnant magnetic field of a contaminant, providing a safe and high-resolution method.
A team of astronomers led by Gregg Hallinan has discovered that brown dwarfs, which are cool and dim objects, host powerful auroras near their magnetic poles. The findings suggest that these so-called failed stars behave more like giant planets with highly active magnetic fields.
Researchers predict a new Little Ice Age may begin by 2030, with reduced solar activity leading to significant cooling of the Earth's atmosphere. This decrease in solar irradiance could result in severe winters and cold summers, similar to those experienced during the Maunder minimum in the 17th century.
A study reveals that a massive star's collapse may power ultra-long gamma-ray bursts with the help of magnetars, rewriting our understanding of these cosmic events. Researchers observed a rare case where a supernova was linked to an ultra-long GRB, finding evidence of a magnetar at the source.
Researchers developed a new technique using synchrotron light to map complex 3D magnetization in wound magnetic layers. This allows for improved sensitivity of magnetic field detectors, crucial for medical imaging and magnetoencephalography.
Scientists at Jülich have developed a new concept for compact terahertz sources with tunable wavelengths using short-pulse lasers and strong external magnetic fields. This technology has the potential to revolutionize various applications, including non-invasive cancer screening and ultrafast wireless connections.
Scientists have discovered a new material that exhibits extremely large magnetoresistance due to its superfast electrons. The material, niobium phosphide, has the potential to revolutionize the design of electronic components, enabling faster processing and storage of data.
The study reveals a helically-twisted loop of magnetic field coiled around the galaxy's main spiral arm, affecting gas flow and star production. The discovery helps explain how galactic spiral arms are formed, resolving major questions about galaxy evolution.
The STAR collaboration has observed a 'chiral magnetic wave' rippling through the quark-gluon plasma created at RHIC's energetic particle smashups. This finding provides evidence for the chiral magnetic effect, a quantum phenomenon causing electric charge separation along the axis of a magnetic field.
Researchers at Stanford University have created a computer that uses water droplets to process information, demonstrating universal logic gates and feedback. The system consists of tiny iron bars on glass slides that manipulate magnetic nanoparticles in water droplets, enabling precise control over physical matter.
Researchers at Brown University propose that comet collisions may have formed lunar swirls through the scouring of loose soil. Computer simulations suggest that impacts from cometary comas can produce bright streaks on the moon's surface.
Physicists at Princeton Plasma Physics Laboratory have simulated the formation of plasmoids in hot plasma gas that fuels fusion reactions. The discovery could lead to more efficient creation and maintenance of plasma through transient Coaxial Helicity Injection, simplifying tokamak design.
Researchers at Ohio State University have confirmed and interpreted experimental findings using OSC services, showing that phonons have magnetic properties. A magnetic field reduced the amount of heat flowing through a semiconductor by 12 percent in simulations performed on the Oakley Cluster.
Researchers at Temple University and the University of Maryland have discovered a new class of non-Joulian magnets that expand their volume when placed in a magnetic field. These magnets can generate negligible amounts of wasteful heat during energy harvesting, making them ideal for creating compact omnidirectional actuators.
Researchers at Technical University of Munich develop record-breaking magnetic shielding to dampen low frequency magnetic fields, creating the weakest magnetic field in the solar system. This breakthrough enables high-precision experiments, such as measuring the electric dipole moment of neutrons.
Researchers have designed and tested a magnetic shield that provides more than 10 times better shielding than previous state-of-the-art shields. The device enables high precision measurements of fundamental particles, potentially revealing previously hidden physics.
A researcher at the University of Waterloo has theoretically demonstrated detecting a single nuclear spin at room temperature, enabling enhanced Nuclear Magnetic Resonance (NMR) imaging of biological materials. A tiny ferromagnetic particle acts as an amplifier to detect a single spin at a distance of 30 nanometres.
Physicists detect nuclear spins in single biomolecules for the first time using magnetic particles and novel experimental setup. This breakthrough improves medical diagnostics and analysis of biological and chemical samples.
Scientists have discovered that Mercury's magnetic field is almost 4 billion years old, providing a new understanding of the planet's history. The discovery was made possible by data from NASA's MESSENGER spacecraft, which orbited Mercury between 2011 and 2015.
Scientists at NJIT's Big Bear Solar Observatory have captured groundbreaking images of the Sun's interior structure, revealing complex dynamics of sunspots' dark cores. The high-resolution images show finely structured plasma flows and oscillating cool jets piercing the hot atmosphere.
Scientists capture first high-res images of flaring magnetic structures known as solar flux ropes, providing insights into massive eruptions on the Sun's surface. The images were taken with NJIT's newly commissioned 1.6m New Solar Telescope at Big Bear Observatory.
The Magnetospheric Multiscale (MMS) mission successfully launched a unique formation of four identical spacecraft to study magnetic reconnection, driving space weather events that disrupt Earth's orbit. The Goddard-developed Navigator GPS receiver enabled precise navigation and tracking in weak signal areas.
Astronomers have detected an extremely powerful magnetic field close to a supermassive black hole in a distant galaxy, revolutionizing our understanding of these cosmic phenomena. The discovery was made using the Alma telescope and reveals new insights into the structure and formation of black holes.
Astronomers have detected strong magnetic fields near the event horizon of a supermassive black hole using ALMA. The findings provide new insights into the mysterious mechanisms driving jet formation, with magnetic fields playing a crucial role in matter escape.
Researchers at NIFS and Kyushu University have discovered a new mechanism that stops plasma flow when the magnetic flux surface is disturbed. This observation is significant for nuclear fusion research and has implications for understanding plasma behavior in the universe.
Scientists have discovered a nearly-annual cycle of solar activity that can drive space weather events, including solar storms at Earth. This discovery could improve forecasts of space weather by understanding the interaction between magnetic field bands on the sun.
Researchers investigated the influence of low-frequency magnetic fields on neurodegenerative diseases, including Alzheimer's disease and amyotrophic lateral sclerosis (ALS). The study found that exposure to these fields did not accelerate disease development or affect learning behavior in relevant mouse models.
Scientists at Niels Bohr Institute create novel sensor using entangled atoms to precisely measure tiny magnetic fields, enabling new insights into biology and medicine. The researchers employ a unique technique involving laser light and quantum uncertainty relations to overcome classical physics limitations.
Researchers expose high-temperature superconductors to record-breaking magnetic fields, revealing unique properties and interactions between electrons. The study paves the way for a new theory of superconductivity, aiming to create room-temperature superconductors without cooling requirements.
Researchers at Ohio State University have discovered a way to control heat with magnetic fields, using acoustic phonons to steer heat magnetically. This breakthrough opens up new possibilities for energy manipulation, potentially allowing for the control of sound waves as well.
Physicists remotely control magnetic molecules spinning like tops using circularly polarised magnetic field changes. Theoretical findings by Iosif Davidovich Tokman and Vera Il'nichna Pozdnyakova may lead to designing rotating magnetic molecule rotors for powering molecular motors.
Researchers at the University of Utah have uncovered the secrets behind hybrid perovskite solar cell performance, enabling rapid testing using magnetic fields. The study confirms a new mechanism that explains the material's high efficiency, shedding light on its behavior and potential for optimization.
Researchers from General Atomics and Princeton Plasma Physics Laboratory made a major breakthrough in controlling heat bursts in fusion reactors. They found that tiny magnetic fields can create two distinct responses, allowing more heat to leak out and preventing intense heat bursts.
Researchers at MIT have developed a method to stimulate brain tissue using external magnetic fields and injected magnetic nanoparticles. The approach can provide an implant-free means of providing brain stimulation and mapping, potentially treating neurological diseases such as Parkinson's disease.
Scientists confirm an underground saltwater ocean on Ganymede, estimated to be 60 miles thick and buried under a 95-mile crust of ice. This discovery could open up possibilities for life beyond Earth and is made possible by the unique capabilities of NASA's Hubble Space Telescope.
Dartmouth College researchers create a new class of flower-shaped magnetic nanoparticles that heat at low field strengths, showing improved performance compared to commercially available counterparts. This breakthrough could enable treatment of deep-seated tumors like pancreatic cancer.
Scientists discover that the sun's magnetic field controls the large-scale shape of the heliosphere, producing two jets that split its tail, similar to astrophysical jets observed in other stars and black holes. The discovery could lead to better understanding of particle acceleration, cosmic rays, and space travel protection.
Researchers propose a new model showing the sun's magnetic field controls the shape of the heliosphere by accelerating solar wind into two jets. This understanding could have implications for future space travel and help us comprehend the filter protecting the solar system from galactic cosmic rays.
Researchers have discovered tiny magnetic particles in meteorites that retain a faithful record of the magnetic fields generated by their parent bodies. By analyzing these particles, scientists were able to reconstruct the history of magnetic activity on the meteorite parent body and capture the moment when the core finished solidifying.
Researchers have derived a new set of equations that allows for calculating electron paramagnetic resonance transition probabilities with arbitrary alignment and polarization. This progress is relevant for a broad community of EPR users and has been demonstrated with a newly designed THz-EPR experiment at HZB's storage ring BESSY II.
Researchers at Rockefeller University have successfully used electromagnetic waves to remotely control insulin production in diabetic mice, opening up new possibilities for treating diseases. The system, dubbed radiogenetics, uses a natural iron storage particle and heat-activated ion channel to trigger gene expression in cells.