Scholars developed an AI program using symbolic regression to improve mass inferences of galaxy clusters. The new equations extract jelly at the center and concentrate on doughy outskirts for reliable mass inferences.
The team developed a technology to globally assess Fe-S cluster binding in an entire proteome without laborious protein purification or radioisotopes. The study found differential sensitivity of iron-sulfur clusters to iron limitation and pathway impairment, prioritizing iron-sulfur cluster delivery in E. coli.
A team of astronomers has directly measured the mass of a dead star using gravitational microlensing, a phenomenon predicted by Einstein's General Theory of Relativity. The measurement, made for an isolated white dwarf called LAWD 37, provides new insights into star evolution and testing current theories of how white dwarfs evolve.
Astronomers using NASA's Hubble Space Telescope have directly measured the mass of a lone white dwarf for the first time. The white dwarf, LAWD 37, has a mass of 56% that of our Sun, corroborating current theories of how white dwarfs evolve.
Astronomers have uncovered a rare binary star system that has the right conditions to trigger a kilonova, an ultra-powerful explosion created by colliding neutron stars. The system, CPD-29 2176, is one of only about 10 such systems thought to exist in the Milky Way Galaxy.
Embry-Riddle astronomers report a rare binary star system with an uncommon circular orbit, formed when a supernova fizzled out without the usual bang. The discovery sheds light on the origins of the universe and the formation of heavy elements.
Scientists discover first gamma-ray eclipses from spider star systems using Fermi data, calculating system tilt and pulsar mass. The discovery helps researchers measure pulsar masses, constraining physics within extreme environments.
Astronomers using Hubble observed a star's final moments as it was gobbled up by a black hole, creating a donut-shaped torus. The event provides forensic clues to the black hole homicide, with details on the debris's behavior and the accretion rate.
Researchers have discovered a supernova with strong features of oxygen and magnesium, suggesting the explosion could be crashing into circumstellar matter formed around 1,000 days prior to the event. This finding provides new insights into the later stages of massive star life and creates challenges for current theories on star evolution.
Researchers at the University of Washington have discovered a unique binary star system where a small companion star is surrounded by a large disk of dusty material. The companion star caused a seven-year-long eclipse of the main star, Gaia17bpp, which is one of the longest recorded eclipses.
The Hubble Space Telescope has shed new light on the mystery of intracluster light, finding that these stars have been wandering around for billions of years. The survey suggests that these stars were already homeless in the early stages of the cluster's formation, and current theories cannot explain their origin.
Women with cluster headaches experience longer-lasting and more frequent attacks than men, contributing to a higher rate of chronic cluster headache. The study suggests that these differences may contribute to the disorder being misdiagnosed in women.
Two temperate Earth-mass planets orbit GJ 1002, a cool and faint star suitable for atmospheric analysis. The discovery increases the number of known habitable planets to seven near the Sun.
A study published in Neurology found that people with cluster headaches are at a higher risk of developing other illnesses, including heart disease and mental disorders. The study also found that those with cluster headaches missed more days of work due to sickness and disability.
A team of astronomers used the Green Bank Telescope to image a galaxy cluster and revealed new information about a supermassive black hole. The study found that at least a portion of the pressure support in the cavities is due to non-thermal sources, such as relativistic particles and cosmic rays.
Researchers investigated open star clusters, finding they dissolve faster than predicted by Newton's laws. The team developed a new method to count stars in tidal tails, revealing a significant difference in the number of stars between the front and rear tails.
Researchers at Chinese Academy of Sciences have discovered a full-metal hollow cage cluster Nb12+ niobespherene that resists CO attack. The study elucidated the superatomic stability of this cluster and unveiled its potential as a new material with novel d-orbital hybridization.
Astronomers found that a planet like GJ 1252b, orbiting an M dwarf star, would likely lose its atmosphere due to intense heat and radiation. The discovery narrows the search for habitable planets around these stars, but leaves room for possibilities further away from the star.
A new star rating system, published in Nature Medicine, provides clear and easy-to-understand guidance on the strength of evidence for links between various risk factors and health outcomes. The analysis found that nearly two-thirds of risk-outcome pairs received only a one- or two-star rating, indicating weaker associations.
Researchers have discovered young stars spiraling into the center of a massive cluster in the Small Magellanic Cloud, a satellite galaxy of the Milky Way. The spiral motion is thought to be feeding star formation in a river-like motion of gas and stars, an efficient way to fuel star birth.
Researchers detected a bipolar gas stream flowing out of a young stellar object in the Small Magellanic Cloud, revealing a rotational motion suppressed by molecular outflow during gravitational contraction. This finding suggests that star formation has been common throughout the past 10 billion years.
Researchers have found the oldest visible planetary nebula, a rare celestial jewel, hosted by a 500 million-year-old galactic cluster. The team determined that the PN has a 'kinematic age' of 70,000 years and estimates its progenitor star's mass and residual core's mass.
Researchers use Gemini Observatory's Zorro instrument to observe R136a1, finding it may be less massive than previously thought, potentially altering understanding of element formation. This breakthrough pushes the capabilities of ground-based telescopes, rivaling those of Hubble and James Webb Space Telescopes.
Astronomers have concluded that Betelgeuse blew its top in 2019, losing a substantial part of its visible surface and producing a gigantic Surface Mass Ejection (SME). The star is now slowly recovering from this catastrophic upheaval. The mass loss event is not necessarily the signal of an imminent explosion.
Betelgeuse, a bright red supergiant star, experienced a catastrophic Surface Mass Ejection (SME) in 2019, losing a substantial part of its visible surface. The star is now slowly recovering from this event, with astronomers using Hubble data to study the phenomenon and its effects on stellar evolution.
Researchers used Stampede2 supercomputer to simulate star seeding, heating effects of primordial black holes. The study found that these two effects cancel each other out, with little impact on star formation.
Researchers from the University of Bonn found that dwarf galaxies in one of Earth's nearest galaxy clusters show signs of disturbance without dark matter halos. The study's results contradict previous models, suggesting an alternative gravity theory might be more accurate.
The heaviest neutron star detected has consumed nearly all the mass of its companion, growing into a record-breaking object. The study provides constraints on matter's behavior at extreme densities, potentially excluding exotic states of matter.
Astronomers have discovered a unique triple star system consisting of two binary stars and one massive tertiary star. The system is incredibly luminous due to its compact nature and was initially detected by amateur astronomers using NASA's TESS observatory data.
Astronomers observe a star's destruction and discover that most of its material forms a spherical cloud, blocking high-energy emissions. The polarization of light from the event reveals symmetry in the cloud.
Researchers at University of Cologne and Masaryk University discovered a star, S4716, orbiting Sagittarius A* in just four years and reaching speeds of 8000 kilometers per second. The study sheds new light on the origin and evolution of fast-moving stars near black holes.
A new study found that fine particulate matter (PM2.5) exposure is associated with an increased risk of having a cluster of multiple chronic diseases, particularly cardio-metabolic and respiratory conditions. The analysis revealed four distinct multimorbidity clusters, with lower PM2.5 exposure linked to musculoskeletal conditions.
Researchers at Kyoto University have discovered a novel hydroxy-iodide (HSbOI) cluster compound with large, positively charged clusters. This finding may open up new possibilities in the design of solid-state catalysts.
Researchers used ALMA to study 30 Doradus, a large star-forming region in the LMC, and discovered that gravity is shaping molecular clouds despite intense stellar feedback. The observations revealed a pattern of highly organized filaments, which are likely an important step in the process of star formation.
A Northwestern University-led team of astrophysicists observed a star-forming cloud and discovered a twisted magnetic field that suggests the formation of a binary star system. The researchers believe a previously hidden sibling star may be responsible for the twisted field, which shifted the dynamics of the cloud to form a new star.
A new study using Chandra X-ray Observatory data reveals a deep connection between cosmic collisions and solar system phenomena. The research, led by Helen Russell from the University of Nottingham, shows that electrons are heated by compression of gas in galaxy clusters.
Researchers used a new simulation code to study the formation of star clusters and found that massive stars can eject off-center bubbles in the Orion Nebula. The simulations matched observations, showing that ejected stars can initiate ionized bubbles before falling back into the cluster.
Stepped wedge cluster randomized trials offer statistical power, incentivized recruitment, and staggered resource allocation. However, challenges include time-sensitive recruitment, retention issues, and the Hawthorne effect.
Researchers found that binary star systems form planets in a different way than single stars, which can significantly impact the search for alien life. The study used ALMA telescopes to observe a young binary star system and discovered a cyclic pattern of gas and dust movement that may trigger bursts of material towards the star.
The Hubble Space Telescope has discovered a surviving companion star to SN 2013ge, providing crucial insight into the binary nature of massive stars. The finding sheds light on the puzzle of hydrogen loss pre-supernova and supports the theory that most massive stars are paired.
Researchers have identified the rarest type of black widow binary yet, featuring a pulsar and a third star that orbits every 10,000 years. The system, ZTF J1406+1222, has the shortest orbital period ever recorded, with the pulsar and companion star circling each other in just 62 minutes.
The discovery of star Earendel breaks the record for the farthest individual star ever seen, located 12.9 billion years away. The Hubble Space Telescope detected light from this ancient star due to gravitational lensing by a massive galaxy cluster, allowing astronomers to study it in unprecedented detail.
Scientists using the Hubble Space Telescope have discovered a single star, nicknamed Earendel, located an astonishing 28 billion light-years away. The star is estimated to be up to 500 times more massive than our Sun and millions of times brighter.
Astrophysicists have witnessed the death throes of a red giant star named V Hydrae, which is expelling six slowly expanding molecular rings and an hourglass-shaped structure into space. The discovery challenges previous assumptions about star deaths, suggesting that the traditional model may be incomplete or incorrect.
Astronomers have identified a nearby Sun-like star that has paused its own cycles and entered a similar period of rare starspots, sparking hope for understanding the Sun's 70-year Maunder Minimum. Continued observation could provide crucial insights into the Sun's stellar magnetic activity, potentially affecting climate on Earth.
Astronomers have detected a new planet orbiting Proxima Centauri, the closest star to our Solar System, with a mass comparable to that of Earth. The newly discovered planet, named Proxima d, orbits its star at just five days, within the habitable zone.
A team of astronomers has discovered a massive cluster of young galaxies forming in the early universe, with many member galaxies already stopped forming stars. The newly found growing galactic metropolis is about 11.8 billion light-years away and consists of at least 38 member galaxies.
A team of astronomers discovered an unusual massive cluster of young galaxies forming in the early universe. The newly found growing galactic metropolis, MAGAZ3NE J0959, consists of at least 38 member galaxies and is about 11.8 billion light-years away from Earth.
Researchers found that massive stars can be far from their birthplace due to mergers of medium-mass stars. The study of HD93521 and IT Librae reveals that these stars can rotate quickly enough to create black holes with large spins.
A sub-Neptune exoplanet named TOI-2257 b has been found to have an eccentric orbit around its host star, making it a candidate for further study. The planet's distance from the star allows for liquid water and potentially life-supporting conditions.
A unique stellar structure in the Milky Way, C-19, has been found to consist of stars with extremely low metallicity, challenging current understanding of star formation models. This discovery provides a direct window into the earliest ages of star formation and the development of stellar structures in the distant past.
A supermassive filament eruption has been observed on a Sun-like star, EK Draconis. The filament was large and fast, posing severe impacts on planetary environments. This finding sheds light on the origins of life on Earth and potential life on other planets.
Cluster headaches are extremely painful and occur in cyclical patterns. The study found that pediatric-onset cluster headache affects 27.5% of survey participants but only 15.2% were diagnosed before age 18.
Astronomers have discovered an ultra-short-period planet GJ 367 b, which orbits its star in just eight hours and has a radius of 72% that of Earth. The planet's mass is 55% of the Earth's, indicating it likely has an iron-rich core, similar to Mercury's interior.
Astronomers have detected a white dwarf star that spins at an incredible rate of once every 25 seconds, completing one rotation faster than Earth. The star is thought to be the size of the Earth but massive enough to pull material from its companion star, creating a magnetic propeller system.
A new technique developed by University of Hawaii astronomer Nader Haghighipour has successfully detected a transiting circumbinary planet in TESS data. The discovery validates the method, which reduces the time to detect such planets from over a year to just five days.
Exoplanets HD3167b and two mini-Neptunes orbit in planes perpendicular to each other, with the innermost planet still in the equatorial plane. The discovery suggests an unknown celestial body responsible for this disorder is likely at play.
Researchers at MIT and UNH find that binary neutron star mergers produce two to 100 times more heavy metals than neutron star-black hole mergers. The study suggests that binary neutron stars are a likely cosmic source for gold, platinum, and other heavy metals.
A new study reveals how supernovae explosions of massive stars can form heavy neutron star binaries, resolving a puzzle from gravitational wave observatories LIGO and Virgo. The team's results show that the explosion energy determines whether a stripped star forms a neutron star or black hole.
HKU astrophysicists identify historical supernova of AD 1181 with recent discovery of 'Parker's star' and its surrounding nebula Pa30. The team found the event matches ancient Chinese reports within 3.5 degrees, providing a firm historical basis for the rare Type Iax designation.