Convection motions have been tracked in detail on a red giant star for the first time, providing new insights into stellar behavior. The observations reveal giant, hot bubbles of gas appearing on the surface and sinking back into the star's interior faster than expected.
The James Webb Space Telescope has identified six likely rogue worlds, including the lightest ever found with a dusty disk around it. These objects offer insights into how stars and planets form, suggesting that gas giants can form in disks around young stars.
Astronomers using Georgia State University's CHARA Array have identified large spots on the surface of Polaris, also known as the North Star. The observations provided the first glimpse of what the surface of a Cepheid variable looks like, revealing a diameter 46 times larger than the Sun.
Astronomers have discovered a nearby star that rotates faster than expected, with anomalies in its stellar rotation profile. This finding provides insights into fundamental stellar strophysics and challenges current understanding of stellar dynamics and magnetic dynamos.
Researchers found an intermediate-mass black hole in star cluster IRS 13 near SgrA*, suggesting it could be a 'seed' for the central supermassive black hole. The discovery provides insights into the galaxy's evolution and the formation of intermediate-mass black holes.
Scientists have captured the first-ever image of an S-shaped jet coming from a confirmed neutron star, providing strong evidence for precessing jets. The discovery was made using the MeerKAT telescope and reveals valuable insights into the extreme physics behind the launching of the jet.
Astronomers have discovered seven fast-moving stars in the Omega Centauri globular cluster, providing compelling evidence for the presence of an intermediate-mass black hole. The team analyzed over 500 Hubble images to search for signs of gravitational pull from the black hole.
The study aims to understand the activation of the internal clock that regulates body processes in cluster headache patients. Researchers found a new circadian pattern of pain in a laboratory headache mouse model, which disappeared when clock genes were genetically altered.
An international team of astronomers found that most nearby young star clusters belong to just three families, which formed in massive star-forming regions. These star clusters also left traces on Earth, including the Local Bubble and iron isotopes in the crust.
Astronomers have used Hubble and SOFIA to study the HM Sge binary star system, which experienced a sudden increase in brightness 40 years ago. The team has found that the system's temperature has increased, but paradoxically faded slightly, raising questions about its long-term behavior.
The newly discovered exoplanet, nicknamed Phoenix, has a surprisingly large and dense atmosphere, challenging current understanding of planetary evolution in extreme environments. Scientists estimate that the planet will survive for only 100 million years before dying due to its proximity to the star.
Astronomers from the University of Sydney and CSIRO have detected a slow-spinning neutron star with a period of nearly an hour, breaking all known rules. This discovery provides new insights into the complex life cycles of stellar objects and may prompt a reconsideration of our understanding of neutron stars or white dwarfs.
Simulations reveal that dense molecular clouds can give birth to very massive stars that evolve into intermediate-mass black holes. The study provides new insights into the potential mechanisms of intermediate-mass black hole formation, which could have significant implications for our understanding of these enigmatic objects.
A novel gene cluster expression analysis was introduced to potentially expand treatments for more lung cancer patients. The study found that a gene cluster expression index can classify cancers with dramatically different recurrence risks, with higher risk groups suitable for targeted therapy or immunotherapy.
Astronomers uncover evidence of a massive star's quiet demise into a black hole without a supernova explosion. The VFTS 243 system shows minimal signs of an explosion, offering insight into stellar evolution and collapse theories.
The SPECULOOS project has discovered an Earth-sized exoplanet around SPECULOOS-3, a nearby ultra-cool dwarf star. The planet, named SPECULOOS-3 b, is similar in size to our own planet and orbits the star in just 17 hours, resulting in constant day and night conditions.
The discovery of SPECULOOS-3 b is the second of its kind around an ultra-cool dwarf star and offers opportunities for life on orbiting planets to develop due to the star's long lifespan. The planet takes 17 hours to complete an orbit, making days and nights endless.
The newly discovered SPECULOOS-3b is an Earth-sized, likely airless planet orbiting a nearby ultracool dwarf star. The planet's extremely close proximity to its star has likely vaporized any atmosphere, allowing scientists to study its surface composition and history in unprecedented detail.
A team of astronomers and citizen scientists has discovered a planet in the habitable zone of an unusual star system, including two stars and potentially another exoplanet. The newly discovered planet, TOI 4633 c, boasts the second-longest orbit of any planet discovered with TESS data.
Researchers discovered a rare binary system with a magnetic massive star, surrounded by a beautiful nebula. The more massive star appears younger than its companion, suggesting a merger event that created the surrounding cloud.
Researchers at Kyushu University discovered that baby stars expel plumes of dust, gas, and electromagnetic energy in a phenomenon called 'interchange instability', releasing magnetic flux within the protostellar disk. This finding sheds new light on how baby stars develop and may be crucial for understanding star formation.
Researchers have synthesized a previously unknown iron cluster with an icosahedral [Fe@Fe12]16+ core and multicenter iron-iron bonding. The cluster's low oxidation states and unique bonding modes offer insights into the evolution of physical/chemical properties in transition metal clusters.
Researchers have discovered a unique signature of planetary material ingestion on the surface of a white dwarf star, WD 0816-310. The team observed a concentration of metals imprinted on the star's surface, indicating that the magnetic field played a key role in this process.
The James Webb Space Telescope has revealed conclusive evidence of a neutron star in the remnant of Supernova 1987A, which was once thought to be a black hole. The observations confirm emission lines from highly ionized gas near the explosion site, indicating intense ultraviolet and X-ray radiation.
The James Webb Space Telescope has found direct evidence for emission from a probable young neutron star at the site of the recently observed supernova SN 1987A. Spectral analysis revealed strong signals due to ionized argon and five times ionized argon, indicating high-energy radiation from the compact object.
Researchers use James Webb Space Telescope to observe Supernova 1987A and detect ionised argon and sulphur atoms, providing conclusive evidence for a neutron star's presence. The discovery sheds light on the formation of heavy elements and the nature of compact objects in supernovae.
Researchers found nine out of 40 studied systems have perfect alignment, suggesting planetary systems may prefer an orderly configuration. This could be beneficial for life forming in those systems, as misaligned stellar companions can disrupt planetary stability.
Astronomers have finally detected a compact source of ionizing radiation at the center of Supernova 1987A, likely a neutron star. The detection was made possible by the James Webb Telescope's high resolution and new instruments, resolving decades-old mystery about the supernova's final product.
Researchers found an unknown object orbiting a rapidly spinning millisecond pulsar, weighing more than the heaviest neutron stars and less than the lightest black holes. The discovery was made using the MeerKAT Radio Telescope and could reveal new insights into black holes and neutron stars.
Researchers from Lehigh University have successfully mapped 15 orphaned stars to their birth clusters in the Milky Way using Gaia Mission data. The study provides new insights into the galaxy's history and star cluster dynamics.
Researchers used the James Webb Space Telescope to analyze the atmospheric composition of HAT-P-18 b, detecting water vapour and carbon dioxide. They also found a cloud deck that mutes the signals of many molecules, and their findings suggest the star's surface is covered by dark spots. The study highlights the importance of considerin...
Astronomers used NASA's James Webb Space Telescope to identify the new record-holder: a tiny, free-floating brown dwarf with only three to four times the mass of Jupiter. The discovery provides clues about the star-formation process at very small masses and sheds light on the properties of exoplanets.
Astronomers have identified a tiny, free-floating brown dwarf with only three to four times the mass of Jupiter using NASA's James Webb Space Telescope. The discovery provides clues about the star-formation process and helps better understand exoplanets.
Scientists have successfully simulated neutron star glitches using ultracold supersolids, revealing a link between quantum mechanics and astrophysics. The study sheds light on the internal structure and dynamics of neutron stars, providing valuable insights into extreme conditions.
Researchers find planet more than 13 times as massive as Earth orbiting ultracool star LHS 3154, challenging current theories of planet formation. The discovery requires reexamination of how planets and stars form, with a heavy planetary core inferred that would need more solid material in the disk.
A team of astronomers led by Durham University detected a rotating disc structure around a forming high-mass star in another galaxy, marking the first extragalactic detection. The disc is estimated to be around 15 times the mass of our Sun and provides insights into star formation across different galactic environments.
A study by Prof. Christina Sanchez-Stockhammer shows that Star Wars words and constructions are increasingly used in digital English text corpora. The study reveals that these words have reached the highest level of integration into the English language, with many uses referencing tangible objects like toy lightsabers.
A team of astrophysicists discovered that two methods for determining the age of stars measure different things, with a 5.5 million-year difference in age determined by dynamic tracking versus isochronous measurement. This finding has significant implications for our understanding of star formation and stellar evolution.
University of Michigan researchers discovered that less evolved dwarf galaxies have bigger regions of star factories with higher rates of star formation. A 10-million-year delay in blowing out gas allows these galaxies to hang on to their gas and dust, enabling more stars to coalesce and evolve.
Researchers at ALMA achieved the highest resolution ever, observing a ring-like gas structure around R Leporis and confirming gas escape from the star. This capability will now be applied to young stars with protoplanetary disks where planets are forming.
The combined image reveals galaxies outside the cluster, varied sources over time likely due to gravitational lensing, and transients varying in brightness. The team identified 14 such transients across the field, including highly magnified stars or multiple-star systems and supernovae.
Researchers observe complete process of dwarf galaxy evolution into ultra-compact dwarf galaxies, shedding light on their mysterious origins. About 15% of UCDs are surrounded by faint star halos, and they're highly correlated with strongly nucleated dwarf galaxies.
Researchers at Ruhr-University Bochum developed a method to increase oxygen stability of [FeFe] hydrogenase enzyme using site-directed mutagenesis, electrochemistry, X-ray crystallography and molecular dynamics simulations. Blockages in dynamic water channels near the H-cluster were found to improve oxygen resistance.
Astronomers detected two ice giant exoplanets colliding, creating a blaze of light and plumes of dust that moved in front of the parent star, dimming it over time. The study suggests the collision occurred three years before the star started to fade in visible light.
A young star cluster, IRS13, has been found to be significantly younger than expected, with stars only 100,000 years old, despite being near the supermassive black hole Sgr A*. The cluster's turbulent history suggests it was 'captured' by the black hole's gravity, leading to a bow shock and increased star formation.
The James Webb Space Telescope detected no significant atmosphere around TRAPPIST-1 b, a planet in the habitable zone of its cool star. The study highlights the impact of stellar activity on observations of exoplanets, which can create 'ghost signals' that affect data interpretation.
A team of astrophysicists used simulations to track the motion and evolution of stars in the Hyades cluster, finding that two or three black holes could be present at its center. The study suggests these black holes are still inside the cluster or very close to it, making them the closest ever detected.
Astronomers using NASA's Neil Gehrels Swift Observatory discovered a black hole repeatedly nibbling on a Sun-like star in a distant galaxy. The object was detected using a new method for analyzing data from the satellite's X-ray Telescope, enabling it to adapt to new areas of astrophysics.
Researchers have identified a cluster of neurons in the hypothalamus called GABRA5 that regulates energy expenditure. Astrocytes control this cluster, producing tonic GABA that inhibits it, leading to weight gain.
A study of a Wolf-Rayet star suggests it will form a magnetar upon explosion as a supernova, with strong magnetic fields predicted. The findings provide new insights into magnetar origins and suggest a possible pathway for their formation.
Researchers have uncovered a living star, HD 45166, that is likely to become a magnetar, marking the discovery of a new type of astronomical object - massive magnetic helium stars. The star has an incredibly strong magnetic field, 43,000 gauss, and will end its life as a compact core with a magnetic field of around 100 trillion gauss.
Researchers discovered a new type of astronomical object - a massive magnetic helium star that may evolve into a magnetar. The star has a phenomenally powerful magnetic field, about 43,000 gauss, and will eventually collapse into a neutron star with an even stronger magnetic field.
The James Webb Space Telescope has captured a new image of the 'El Gordo' galaxy cluster, revealing dusty objects and distorted background galaxies. Gravitational lensing provides a unique window into the distant universe, allowing scientists to study star formation history and assembly of galaxies.
The Hubble Space Telescope has observed extreme variability in the atmosphere of an exoplanet orbiting a young red dwarf star. The planet, AU Mic b, experiences unpredictable blasts of energy that evaporate its hydrogen atmosphere, but with varying success.
Astronomers have detected radio waves emitted by a Type Ia supernova for the first time, revealing clues about white dwarf explosions. The supernova was found to be surrounded by helium-rich circumstellar material, indicating mass accretion from a companion star triggered the explosion.
A recent study published in Science found that tidal shocks can occur when a star collides with itself as it orbits a black hole. This discovery contradicts the current understanding of stellar matter evolution during Tidal Disruption Events (TDEs), which typically produce X-ray bright accretion disks.
A team of scientists at MIT and elsewhere have observed a star engulfing a nearby planet, a phenomenon that will also befall Earth in 5 billion years. The star's outburst was followed by a colder, longer-lasting signal, indicating the presence of gas from the star condensing into dust.
Researchers have discovered a tiny galaxy with big star power using the James Webb Space Telescope, providing new insights into the universe's early stars. The galaxy is one of the smallest ever discovered at this distance—around 500 million years after the Big Bang—and generated new stars at an extremely high rate for its size.
A meta-analysis found strong links between cluster headache and migraine and the circadian system, with specific patterns of attacks and hormonal associations. The study suggests using circadian-based treatments as a potential new approach for headache disorders.
Researchers have discovered a large reservoir of hot gas in the Spiderweb galaxy cluster, which is believed to be on its way to becoming a massive galaxy cluster. The detection was made using ALMA and provides valuable information about the early Universe's structure formation.