Cosmic rays generated by particles from outside the solar system can alter individual bits of data stored in memory, causing single-event upsets (SEUs) that can be difficult to characterize. The problem is becoming increasingly serious as computer chip technology advances and becomes smaller.
Research uses galaxy distribution and weak lensing to map cosmic web, finding that star-forming galaxies play a more prominent role in the distant universe. The study provides new insights into galaxy evolution and the structure of the cosmos.
Researchers at Tohoku University identified a new mechanism producing low-energy free electrons from X-ray absorption in matter. The process, known as Electron Transfer Mediated Decay, involves rapid charge redistribution over multiple atomic sites.
NASA's Radiation Dosimetry Experiment reveals steady increase in cosmic radiation rate higher in the atmosphere, contrary to particle concentration. The findings will improve space weather models and develop real-time instruments for safe flight operations.
The Caltech instrument, KCWI, will map gas flowing into and out of forming galaxies, revealing dominant modes of galaxy formation. KCWI is a versatile general-purpose instrument that can study cosmic objects in ways not possible before.
The galaxy IRAS 16399-0937 hosts a double nucleus, with the northern nucleus featuring a black hole of massive proportions and a starburst region in the southern part. Hubble's observations reveal the intricate structure of this cosmic megamaser, shedding light on its unique composition and energetic processes.
A team of astronomers from institutions around the world has processed images from the Kilo Degree Survey to make one of the most precise measurements ever made of cosmic shear, a subtle variant of weak gravitational lensing. The results suggest that dark matter in the cosmic web is less clumpy than previously believed.
Scientists detected a brief but brilliant burst of radiation that provided new information about the cosmic web, a swirling gas and magnetic field between galaxies. The event allowed researchers to reconstruct the travel path of the signal to a precise line of sight, offering clues about the Universe's vast spaces.
The GRAPES-3 muon telescope detected a burst of galactic cosmic rays that temporarily cracked Earth's magnetic shield, allowing lower energy particles to enter the atmosphere. The event triggered severe geomagnetic storms and radio signal blackouts in high-latitude countries.
An international team of physicists has developed a method using Ultrahigh Energy Cosmic Rays (UHECRs) to study particle interactions, potentially revealing new physical phenomena at higher energies than the Large Hadron Collider.
A new study by UCI researchers found that prolonged spaceflight exposure to galactic cosmic rays can cause significant long-term brain damage in rodents, leading to cognitive impairments and dementia. The study raises concerns about the potential central nervous system complications astronauts may face during extended Mars missions.
The MinXSS CubeSat collects data on soft X-rays, providing insight into solar flare physics and temperature, density, and abundance of solar flare material. This information is crucial for understanding how flares evolve and heat the sun's atmosphere.
A study by the American Academy of Orthopaedic Surgeons found that X-rays are the most effective diagnostic tool for knee pain in middle-aged patients. The study suggests that weight-bearing X-rays should be obtained before an MRI to screen for knee pain, as they can often provide enough information for a diagnosis and treatment plan.
Researchers from LMU Munich analyzed data from the Sloan Digital Sky Survey to calculate the dynamics of cosmic voids. Their findings demonstrate that the analysis of voids is a suitable approach to investigating gravity in empty regions and determining the total density of matter in the universe.
New data from NuSTAR reveals large numbers of black holes sending out high-energy X-rays, helping astronomers understand growth patterns and evolution of supermassive black holes. The study resolves 35% of the high-energy X-ray background, uncovering details about the most obscured black holes hidden in gas and dust.
Researchers have successfully created a controlled beam of ultra-energized photons, or gamma rays, from a laser using simulations on the Lonestar and Stampede supercomputers. The breakthrough has potential applications in fields such as cancer treatment, cargo screening, and fundamental science studies.
Researchers discovered a UV-B receptor that activates proteins to build defense mechanisms, allowing plants to tolerate harmful UV-B rays. Plants also use UV-B rays to influence growth and development, making them essential for survival.
A study suggests that ancient supernovae caused a significant increase in cosmic radiation on Earth, which may have boosted mutation rates and contributed to cancer. The researchers also found that this increased radiation could have led to a minor mass extinction event around 2.59 million years ago.
Astronomers have observed the early formation of galaxies and found that stars were forming inside them much faster in the past. The rapid star birth is using up more cosmic dust, which is becoming cleaner as the universe evolves.
Astronomers discovered a rare cosmic tadpole galaxy, LEDA 36252, with its bright head and elongated tail. The galaxy features surprisingly young stars with a total mass equivalent to 10,000 Suns, indicating a recent burst of star formation triggered by the accretion of primordial gas.
A new study by the Scripps Institution of Oceanography has challenged the assumption that oceanic manta rays are long-distance travelers. The research team found that these massive creatures tend to stay close to their local habitats, suggesting a high degree of residency behavior.
The Atacama Large Millimeter/submillimeter Array (ALMA) has observed oxygen in a galaxy 700 million years after the Big Bang, providing evidence for cosmic reionisation. The findings suggest that many brilliant stars have formed in the galaxy, emitting intense ultraviolet light to ionise gas.
The study suggests that low-energy electron and UV irradiation of methanol ices yield the same reaction products, with potential implications for the interstellar synthesis of prebiotic molecules. Future research will investigate this phenomenon further, potentially providing new insights into the origins of life.
A new study by NASA scientist Alexander Kashlinsky proposes that primordial black holes, formed in the universe's first second, could make up dark matter. If correct, this would mean all galaxies are embedded within a vast sphere of black holes with masses similar to the sun.
Researchers detected gamma-ray emission in Arp 220, revealing extreme energetic processes and hidden cosmic rays. The finding expands energy observations of galaxies and sheds light on the population of extreme energetic particles.
Researchers confirm detection of faintest early-universe galaxy using gravitational lensing, shedding light on the cosmic dark ages. The discovery could help explain how these mysterious periods ended and has implications for our understanding of the universe's evolution.
Scientists have discovered a nearby supernova's ash continuing to fall on Earth, with rare iron-60 isotope detected in cosmic rays. The findings suggest another supernova occurred near the previous one, contributing to the ongoing acceleration of these nuclei.
A rare type of iron nucleus, with a half-life of 2.6 million years, serves as a 'clock' to measure the distance between Earth and the source of galactic cosmic rays. The data suggest that nearby supernovae in massive star clusters are responsible for creating these nuclei.
The study uses a rare type of cosmic ray that acts like a tiny timer to determine the age and distance of galactic cosmic rays. The results suggest that these cosmic rays were created recently and are coming from nearby clusters of massive stars within 3,000 light years of Earth.
A new study by J. Andrew Gillis at the MBL Whitman Center found striking similarities between the genetic mechanism used to pattern gill arch appendages and human limbs.
The HAWC Gamma-ray Observatory has released a new survey of the sky made from the highest energy gamma rays ever observed, revealing new high-energy sources within our own Milky Way galaxy. The observatory has also provided more detail on known sources, offering a deeper understanding of high-energy processes taking place in our galaxy...
New Horizons provided three years of measurements of the solar wind, filling a crucial gap between what other missions see closer to the sun and what Voyager spacecraft see further out. The data helps round out our picture of the sun's influence on space, including the origins of radiation hazards for astronauts.
Researchers discover a new way to view complex groups of atoms in motion using coherent X-rays, revealing voids and nanocolumns that form during thin film production. This technique improves the quality of commercial applications such as solar panels and drug delivery systems.
Researchers have developed location-specific standards for identifying human remains based on X-rays of the spine, upper leg, or skull. These standards provide a consistent approach to identification with high accuracy and reduced misclassification rates. The study's findings have significant implications for forensic experts and can h...
A team of researchers has found evidence for a particle accelerator in the center of the Milky Way that can accelerate protons to petaelectronvolt energies. The discovery sheds new light on the origin of galactic cosmic rays and challenges existing theories.
A research team using ALMA detected the faintest millimeter-wave source ever observed and found that they are responsible for 100% of the enigmatic infrared background light. 60% of these objects are faint galaxies, while the rest remain unknown.
Recent measurements from the LOFAR radio telescope have provided new insights into the properties of cosmic rays, including a surprisingly high number of light particles at high energies. The KIT simulation code CoREAS has enabled precise analysis and interpretation of these signals.
Researchers found intriguing contradictions between IceCube neutrino data and Fermi gamma-ray data, suggesting 'hidden accelerator' origins of high-energy cosmic neutrinos. Proton-photon interactions may block high-energy gamma rays from escaping, enabling the use of neutrinos as new probes of dense astrophysical environments.
ASTRO-H will observe X-ray sources like galaxy clusters and neutron stars up to 10 times fainter than its predecessor Suzaku. The observatory uses four co-aligned focusing X-ray telescopes and cutting-edge instruments to provide simultaneous coverage across its entire energy range.
Researchers propose using twisted X-rays to study non-crystalline but symmetric structures like helices. This method matches the symmetry of incoming radiation to the structure's symmetry, producing sharp peaks in diffraction data that can be used for accurate structure prediction.
Two studies find gamma ray signals in the galactic center are unlikely caused by dark matter collisions. Instead, they could be attributed to fast-rotating stars called millisecond pulsars. Researchers used statistical analysis methods to analyze images of gamma rays captured by NASA's Fermi Gamma-ray Space Telescope.
A Kyoto-led team reports that black hole activity can be observed through visible light during outbursts, and that optical rays provide reliable data for black hole activity. The study used a 20 cm telescope to observe V404 Cygni, detecting repetitive patterns with timescales of several minutes to a few hours.
Astronomers measured the density of photon fog between Earth and quasar PKS 1441+25 using high-energy gamma rays. The data validated theoretical models for the number and brightness of stars and galaxies in the universe going back 7.6 billion years.
Astronomers observed gamma rays from PKS 1441+25, a blazar galaxy 7 billion years away. The high-energy light revealed a single region far from the power source, contradicting previous assumptions.
Researchers detected gamma rays from a rare blazar galaxy, PKS 1441+25, 7.6 billion light-years away, setting new bounds on the extragalactic background light. The observations provide clues to the production of high-energy gamma rays and their interaction with the surrounding environment.
The VERITAS telescope detected powerful gamma rays from a distant galaxy, PKS 1441+25, revealing details about the black hole engine at its center. The gamma-ray emission was found to be located within the relativistic jet, but surprisingly far from the black hole, and is estimated to be around 5 light-years away.
Researchers at Washington University School of Medicine have developed a new approach to imaging patients using Xbox gaming technology, which measures body-part thickness and checks for motion before taking X-rays. The technology aims to produce high-quality X-ray images at low radiation doses without repeating images.
Researchers have developed a new computed tomography method that uses scattering to visualize nanostructures in objects measuring just a few millimeters. This technique allows for the precise three-dimensional visualization of collagen fibers in human teeth, revealing their detailed structure for the first time.
The Andes mountain chain was formed 14 million years ago, according to new research from the University of Bristol. The study used a novel method based on cosmic rays to determine the age of large boulders in the western margin of the Andes.
A new survey using Japan's Suzaku X-ray satellite reveals that the elements necessary for stars, planets, and people were evenly distributed across the Virgo galaxy cluster at a scale of millions of light-years. This discovery suggests that the chemical makeup of the universe is well mixed, with little variation on the largest scales.
A restrictive approach to ordering chest X-rays in the ICU significantly reduces radiation exposure and operating costs without negatively impacting patient outcomes. The study found large decreases in total X-rays ordered, without adverse effects on ventilator days, length of stay, or other key metrics.
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.
Scientists have developed a new method to analyze the movement of specific atoms in dielectric materials when exposed to an electric field. This technique uses X-rays and advanced mathematical analysis to determine changes in atomic placement within the crystalline structure of the material.
The University of Maryland has been awarded $4.5 million to participate in the GROWTH network, which aims to improve understanding of cosmic transients. Undergraduates will analyze telescope data from the network using flipped learning environments and active-learning techniques.
Astrosat observes cosmic objects in visible light, ultraviolet waveband, and X-ray wavebands from very low to high energy. The satellite addresses fundamental scientific problems like testing Einstein's general theory of relativity and studying superdense cold matter.
The Global Relay of Observatories Watching Transients Happen (GROWTH) project aims to improve understanding of cosmic transients by extending night-time observing hours. The network, supported by NSF's PIRE program, enables researchers to monitor rare events like neutron star mergers and heavy element synthesis.
Researchers used an enormous X-ray laser to induce a phenomenon that doesn't occur under normal circumstances, resulting in a single higher-energetic X-ray photon. The findings may lead to new ways to diagnose matter in the future.
Researchers at the IceCube Neutrino Observatory have gathered powerful new evidence in support of previous observations confirming the existence of cosmic neutrinos. The detection of ultra-high-energy muons provides independent confirmation of astrophysical neutrinos from our galaxy and cosmic neutrinos from sources outside the Milky Way.
A newly discovered dwarf galaxy is radiating high-energy gamma rays, potentially pointing to the presence of dark matter. The detection was made using publicly available data from NASA's Fermi Gamma-ray Space Telescope and has sparked excitement in the scientific community.
A team of Caltech astronomers has discovered a giant swirling disk of gas 10 billion light-years away, which is actively being fed cool primordial gas tracing back to the Big Bang. The finding provides the strongest observational support yet for the cold-flow model of galaxy formation.