The discovery of Cygnus X-3 reveals it as the most powerful particle accelerator known to date, producing photons with energies up to 30 PeV. The precise temporal variability and high gamma-ray energies measured by LHAASO confirm its status as a source of cosmic rays.
Researchers at Facility for Rare Isotope Beams identified magnetic transitions within the nucleus of zinc-70 as the cause of an unexpected excess of low-energy gamma rays. This discovery sheds light on a long-standing puzzle in nuclear physics and has implications for astrophysics, including the formation of heavy elements.
Researchers measured high-energy gamma-ray emissions from unstable curium nuclei produced in fission, providing insights into pygmy resonances and the fission process. The study's results enable reliable comparisons of gamma-ray emissions across isotopes, aiding nuclear theorists in improving models describing fission dynamics.
Esprit's frameless mask-based system reduces patient discomfort and psychological stress through submillimeter accuracy and real-time motion management. The AI-powered Lightning treatment planning software streamlines workflow, reducing planning time by up to 80% and enhancing protection of critical normal structures.
Scientists have successfully decoded the polarization cipher of high-energy electrons, demonstrating a new pathway to creating highly polarized gamma-ray sources. The study's findings confirm key predictions of quantum electrodynamics and open up new design options for mid- to high-energy gamma-ray sources.
The US Naval Research Laboratory has launched the Glowbug-2 instrument to identify and localize cataclysmic cosmic events known as short gamma-ray bursts (GRB). The mission provides essential data for multi-messenger astrophysics, serving as a critical electromagnetic counterpart to ground-based gravitational wave observatories.
The DAMPE satellite has identified a universal feature in the energy spectra of primary cosmic ray nuclei, revealing that spectral softening occurs around a rigidity of about 15 TV. This observation strongly supports models explaining the acceleration and transport of cosmic rays based on their rigidity.
The LHAASO collaboration has detected ultra-high-energy (UHE) gamma rays from a gamma-ray binary system, LS I +61° 303. The discovery suggests that high-energy protons are accelerated and collide with the dense surrounding stellar wind, producing these UHE gamma rays. This finding provides critical evidence for gamma-ray binaries as po...
Researchers successfully decoded the polarization cipher of light using high-energy electrons, confirming a key prediction of quantum electrodynamics. The study's findings offer a new pathway toward creating highly polarized, high-brightness gamma-ray sources.
A retrospective study evaluates morphological irregularity parameters in Gamma Knife treatment planning for vestibular schwannoma patients. The analysis revealed strong correlations between these parameters and treatment plan outcomes, suggesting potential improvements in planning strategies.
A team of researchers developed a practical method to align lobster-eye X-ray optics for space telescopes, enabling the detection of distant gamma-ray bursts with high accuracy. The approach was tested on a prototype structure and achieved precise alignment within five arcminutes.
Researchers suggest that dark matter may consist of multiple particles, whose behavior varies depending on the cosmic environment. This could explain why a signal observed at the center of our galaxy is not seen in dwarf galaxies.
Astronomers from the University of Liège have solved a 50-year-old stellar mystery by attributing the X-rays emitted by Gamma Cas to a magnetic white dwarf orbiting the star. The study used high-energy astrophysics instrumentation and revealed that the X-rays are associated with the compact companion, not the massive Be star itself.
Astronomers have solved a 50-year-old mystery surrounding the star gamma-Cas, revealing that its unusual high-energy X-rays are linked to the orbital motion of an invisible white dwarf companion. This breakthrough was made possible by unique high-resolution observations from the European Space Agency's XRISM mission.
The Tibet ASγ Experiment has measured magnetohydrodynamic turbulence on scales below one parsec within the gamma-ray halo surrounding the Geminga pulsar wind nebula. The study found that particle diffusion is strongly suppressed near Geminga and the turbulent properties follow a Kolmogorov-type scaling law.
Researchers found that macrophages retain memories of previous infections due to persistent signaling molecules left behind, which can be reversed by blocking cytokine signaling pathways. This discovery suggests new ways to reduce the activity of misprogrammed macrophages contributing to autoimmune diseases.
A team led by Dr. Shmuel Bialy from the Technion has made a breakthrough measurement of cosmic-ray activity in a galactic nebula, enabling researchers to map properties and study star formation processes. The findings were published in Nature Astronomy and observed using the James Webb Space Telescope.
Researchers found that overexpressed Fc gamma receptors on reactive microglia mistakenly identify healthy neurons, leading to their elimination. Immunotherapy targeting these receptors could slow disease progression by preserving dopaminergic neurons.
Scientists at The Wertheim UF Scripps Institute have designed potential diabetes drugs that reprogram insulin-resistant cells into a healthier state while limiting side effect risks. The compounds target PPAR gamma, a master regulator of fat cell and insulin metabolism.
Researchers at NJIT's Center for Solar-Terrestrial Research have pinpointed a previously unknown class of high-energy particles in the Sun's upper atmosphere responsible for generating intense gamma-ray signals during major solar flare events. These particles, energized to millions of electron volts, are linked to bremsstrahlung emissi...
The CTAO's southern array will be the first gamma-ray observatory to be built in Chile, providing new insights into high-energy Universe events. Construction began on the telescope foundations at ESO's Paranal site in Chile's Atacama Desert.
Young Caribbean manta rays swim with groups of fish, creating small ecosystems that support a variety of marine species. The study found that four families of teleost fish regularly associate with young mantas, including remoras and jacks.
Astronomers have detected a new gamma-ray source near Westerlund 1, a young massive star cluster in the Milky Way. The source is connected to a 'nascent outflow' of particles driven by the cluster's collective wind, creating a cavity in the interstellar medium.
A team of astronomers used multiple NSF NOIRLab facilities, including Gemini and Blanco telescopes, to study the longest gamma-ray burst ever witnessed. Analysis revealed that the event likely originated from a relativistic jet crashing into the surrounding material in a massive, extremely dusty galaxy.
Astronomers have observed a record-breaking gamma-ray burst that lasted nearly seven hours, challenging existing models for these events. The burst's unusual duration and properties suggest multiple possible causes, including the collapse of a massive star or the collision of exotic stellar remnants.
Researchers believe they have finally detected gamma rays predicted by the annihilation of theoretical dark matter particles. The observed energy spectrum matches the emission predicted from weakly interacting massive particles, with a mass approximately 500 times that of a proton.
A study reveals a 100-million-year decline in shark and ray biodiversity, contrary to previous assumptions. The research emphasizes the importance of preserving and restoring diverse coastal habitats to address this crisis.
Chinese researchers identify black holes as likely source of high-energy component of cosmic ray 'knee'. The study reveals a new 'high-energy component' in the proton energy spectrum, indicating that cosmic rays primarily originate from micro-quasars.
Researchers create plasma 'fireballs' using a laboratory analogue of blazar-driven pair cascades, finding no disruption from beam-plasma instabilities. This suggests that intergalactic medium contains a relic magnetic field likely seeded during the early Universe.
Researchers revive dark matter as a serious contender for explaining the Milky Way's central glow, proposing a more complex and nonspherical dark matter structure. Advanced simulations reveal that dark matter may still be the best explanation for the excess of high-energy radiation observed by NASA's Fermi Gamma-ray Space Telescope.
A mysterious glow in the Milky Way could be a clue to dark matter's existence. Researchers used supercomputers to simulate dark matter locations and found matches with actual gamma ray maps.
A collaboration among HKU and Nanjing University detected millisecond pulsations hidden within a gamma-ray burst, revealing the birth of a millisecond magnetar. The findings provide the clearest evidence yet that magnetars can power some of the most luminous explosions in the universe.
The SpIRIT nanosatellite has successfully completed its initial phase, marking a significant achievement for Australia's place in the global space industry. The satellite will now transition to scientific observation, scanning large areas of space using its HERMES X-ray detector to spot cosmic explosions called gamma rays bursts.
Researchers developed an AI model that diagnoses achalasia using plain chest X-rays, outperforming physicians' reviews. The diagnostic performance of the AI model demonstrated higher sensitivity and specificity, enabling early diagnosis and potentially improving treatment efficacy.
A team of astronomers observed a mysterious repeating gamma-ray burst outside the Milky Way galaxy, lasting about a day, which is 100 to 1000 times longer than most GRBs. The discovery challenges known scenarios and may be caused by an intermediate mass black hole or an unusual star being destroyed.
A team of astronomers has detected an unprecedented gamma-ray burst (GRB) that repeated several times over the course of a day, defying current understanding of these powerful events. The source was pinpointed to be outside our galaxy, with evidence suggesting it may reside in another galaxy, several billion light-years away.
The foundation provides $300,000 total funding over four years to investigate cancer causes, mechanisms, therapies, and prevention. This support fosters interdisciplinary research and encourages innovative projects that push boundaries and make breakthroughs.
A team of researchers led by Victor Pasko has revealed the atmospheric events that trigger lightning strikes within thunderclouds. The study describes how strong electric fields accelerate electrons, producing X-rays and initiating a deluge of additional electrons and high-energy photons.
The CTAO LST Collaboration presents groundbreaking findings on the nature of gamma-ray bursts, supporting theoretical models of structured, multi-layered jets. The observations of GRB 221009A provide new clues about jet formation mechanisms and the central engine behind these cosmic phenomena.
A novel AI-based approach identifies a distinct physicochemical signature near the cleavage site of gamma-secretase substrates, revealing dynamic properties essential for molecular recognition. The study highlights the potential of this methodology to improve understanding of gamma-secretase's role in diseases and aid drug development.
LHAASO's groundbreaking results unveil a panoramic view of ultrahigh-energy gamma rays within the Milky Way, providing new insights into cosmic ray origins and extreme astrophysical processes. Four new discoveries include star-forming regions, pulsar wind nebulae, and young massive star clusters.
A team of astronomers from ICRAR discovered a new type of cosmic phenomenon called ASKAP J1832-0911, which emits pulses of radio waves and X-rays for two minutes every 44 minutes. This is the first time such an object has been detected in X-rays.
A team from Norwegian University of Science and Technology proposes that supermassive black hole winds accelerate particles to create the mysterious high-energy radiation. The winds, which can reach speeds of up to half the speed of light, may be responsible for the creation of ultra-high-energy cosmic rays.
Researchers at MSK uncovered a key signaling molecule involved in the body's immune response against leptomeningeal metastasis. A new grading system to assess thrombocytopenia risk after CAR T cell therapy was also developed. Additionally, a statistical method called UnitedMet estimates metabolic characteristics from challenging clinic...
Researchers propose a new route for neutrino production in NGC 1068, suggesting helium nucleus decay as the primary source. This scenario explains the observed strong neutrino signal and weak gamma ray emission, shedding light on extreme environments around supermassive black holes.
A study by Northwestern Polytechnical University and the Ningbo Institute modeled manta ray group dynamics to understand their propulsion. The researchers found that tandem formation significantly improves middle manta ray's performance but two triangular setups decrease overall efficiency compared to a single swimmer.
Researchers can now study microstructures inside metals, ceramics, and rocks with X-rays in a standard laboratory without needing a particle accelerator. The new technique, lab-3DXRD, enables quick analysis of samples and prototypes, providing more opportunities for students.
This study evaluated the long-term outcomes of gamma knife radiosurgery (GKRS) in patients with grade 2 meningiomas. GKRS was found to be a reasonable treatment option, but higher margin doses were associated with improved local control rates.
A new handheld multi-purpose radiation detector detects all types of ionizing radiation, including alpha, beta, X-rays, and gamma-rays. The device has versatile measurement capabilities and can be used in various applications, such as nuclear industry, military, and first responders.
A new study from Boston University School of Medicine found that X-rays can predict common low back pain problems in approximately 75% of cases. In these instances, X-rays may be a preferred initial imaging study, reducing the need for MRI scans and associated costs.
A Mount Sinai-led team has discovered a link between gamma delta intraepithelial lymphocytes and the development of Crohn's disease. By analyzing a mouse model, they found that impaired communication between these cells led to inflammation in the lower small intestine.
Researchers at St. Jude Children's Research Hospital found that removing the 'signal jammer' protein VDAC2 can improve how tumors respond to immunotherapy. This breakthrough could lead to new ways to enhance immunotherapies and make them more effective in treating resistant cancers.
The StarBurst Multimessenger Pioneer will detect short-duration bursts of gamma-rays from neutron star mergers, providing fundamental insight into these extreme explosions. With an effective area four times greater than the Fermi Gamma-ray Burst Monitor, it will increase the detection rate of EM counterparts to NS mergers.
Researchers at Waseda University develop a new imaging technique that uses neutron activation to transform gold nanoparticles into radioisotopes, enabling long-term tracking of their movement in the body. This breakthrough could lead to more effective cancer treatments and precision monitoring of drug distribution.
Studies have consistently shown that 40Hz gamma stimulation can improve cognitive function and reduce Alzheimer's pathology in mice. In human clinical trials, participants exposed to 40Hz light and sound experienced significant slowing of brain atrophy and improvements on some cognitive measures compared to untreated controls.
Filipino researchers have discovered that Taal volcanic ash can be used as a sustainable and lightweight alternative to expensive materials like concrete and lead. The natural presence of iron-rich minerals in the ash gives it strong radiation attenuation properties, making it effective for shielding against harmful X-rays and gamma rays.
A new study reveals that gamma-ray exposure can passivate some defects while activating others, leading to improved recombination dynamics. The concentration of dominant 0.5 eV defects decreases with increasing dose, while the diffusion coefficient increases by orders of magnitude.
Researchers identified a group of unusual objects emitting long-duration outbursts of X-rays, which may be caused by binary star systems with white dwarfs and subgiant stars. The discovery of millinovae could provide insights into the astrophysics of Type Ia supernovae.
The M87 black hole is observed to have a high-energy gamma-ray flare with an emission region of less than three light-days in size. The rapid variability in gamma rays suggests an extremely small flare region, which has different characteristics depending on the wavelength.
A team of scientists captured an astonishing image of a gamma-ray flare emanating from the supermassive black hole at the center of galaxy M87. The flare was tens of millions of times larger than the event horizon and lasted about three days, providing crucial insights into particle acceleration near black holes.