Researchers at Nagoya University discovered that Cepheid variable stars in the Small Magellanic Cloud are moving in opposing directions along two distinct axes, indicating the galaxy is being stretched by multiple external gravitational forces. The findings challenge previous theories of the galaxy's structure and dynamics.
A team of Potsdam researchers has detected infrared signatures of stellar winds from massive stars in the Small Magellanic Cloud galaxy, a satellite of the Milky Way. The study, led by Armin Mang Román, uses James Webb Space Telescope data to analyze the young, massive star cluster NGC 346.
A massive family of over 1000 young stars in the Milky Way has been spotted behaving oddly, moving away from each other at a much faster rate than expected. Using Gaia's vast spectroscopic data, scientists developed a new model to explore and identify these young stars.
Astronomers have found the first strong evidence for a 'polar planet' orbiting a stellar pair, with the unprecedented exoplanet named 2M1510 (AB) b. The planet orbits at an angle of 90 degrees around two young brown dwarfs.
Research suggests that massive stars in the Small Magellanic Cloud are being pulled apart by the Large Magellanic Cloud. The discovery reveals a new pattern in stellar motion, which could transform our understanding of galaxy evolution and interactions.
A recent discovery reveals that massive quiescent galaxies formed even earlier and more rapidly than previously thought. The study found a galaxy named RUBIES-UDS-QG-z7, which formed a stellar mass of over 10 billion solar masses within the first 600 million years after the Big Bang before ceasing star formation.
A new study by UNSW Sydney researchers has discovered the sound frequencies of a cluster of stars 2700 light years away, allowing scientists to map the history of the Milky Way and other galaxies. The discovery uses oscillation frequencies to determine a star's age and mass, providing insights into galaxy formation and evolution.
Researchers developed an AI model that classifies variable stars from light curves with high accuracy, outperforming traditional approaches. The StarWhisper LightCurve series achieves near 90% accuracy with minimal manual intervention, paving the way for parallel data analysis and multi-modal AI applications in astronomy.
A team of researchers from Kyushu University discovered that about 60% of molecular clouds in the Small Magellanic Cloud had a filamentary structure, while 40% were 'fluffy' with higher temperatures. This finding provides new insights into star formation in early-universe-like environments.
The ESO's VISTA telescope captures the colourful extravaganza of RCW 38, a young star cluster located 5500 light-years away. The image reveals vibrant pink hues from gas clouds and multi-coloured dots representing young stars.
Researchers have discovered a strong connection between the long ringdown phase of post-merger gravitational waves and the properties of dense regions in neutron-star cores. Analyzing this phase can significantly reduce uncertainties in the equation of state at very high densities, shedding light on what neutron stars are made of.
The Hubble Space Telescope has discovered a rare blue lurker star in the open cluster M67, which is spinning much faster than expected. The star's unusual behavior suggests it siphoned material from a companion star, leading to its high spin rate and unique evolutionary history as part of a triple-star system.
Researchers observed a galaxy nearly 6.5 billion light-years away, revealing a large number of individual stars made visible through gravitational lensing. The discovery provides new insights into the universe's greatest mysteries, including dark matter and stellar populations.
A study by McGill University researchers has provided the clearest evidence yet that some fast radio bursts originate from neutron stars. The analysis of a single FRB signal showed striking similarities with pulsars, a well-studied class of radio-emitting neutron stars.
A study of over 26,000 white dwarf stars confirmed that hotter stars are slightly larger due to higher temperatures. This finding brings scientists closer to understanding the effects of extreme gravity and potentially detecting dark matter particles.
An international team of researchers has found the first binary star in the immediate vicinity of Sgr A* by analyzing individual observations of dust sources. The discovery provides new clues to how young stars form close to the supermassive black hole, solving a long-standing mystery.
Researchers used NASA's James Webb Space Telescope to study stars in a nearby galaxy with limited heavy elements. They found that some star-forming disks persist longer than predicted, allowing planets to form and grow bigger.
Researchers used pulsar accelerations and stellar velocities to determine the presence of a cluster of stellar mass black holes at the centre of Omega Centauri. The study refines understanding of the formation of these intermediate-mass black holes, which could bridge the gap between stellar and supermassive black holes.
The discovery provides a unique way to investigate the extreme phase of stellar evolution, bridging the gap between the earliest and final stages of binary star systems. This breakthrough could help explain cosmic events like supernova explosions and gravitational waves.
Astronomers have discovered a galaxy with an unusual light signature, suggesting it may be a missing link between the universe's first stars and familiar galaxies. The galaxy's gas is outshining its stars, indicating extreme conditions that could provide insights into early galaxy evolution.
Researchers from University of Texas at Arlington have identified 206 systems of interest for potential habitability, including one system where the planet is always situated in the HZ. The team analyzed data from NASA Exoplanet Archive and found F-type stars to be a promising case for life beyond Earth.
Astronomers have discovered a 'weird' and unprecedented galaxy in the early Universe, with its gas outshining its stars. This phenomenon could provide clues about how galaxies evolved between the Big Bang and familiar galaxies.
Astronomers discovered that super-Earths cannot form near low-metallicity stars due to a strict cut-off in conditions. The study provides an upper limit on the number and distribution of small planets in the galaxy.
Researchers unveil previously unseen properties of neutron stars through gravitational wave analysis, providing insight into internal composition and dynamic material properties. The study places observational constraints on viscosity within neutron stars.
Researchers at Georgia State University have developed a new approach to finding life beyond Earth by focusing on the most abundant type of star in the universe: M dwarfs. With their vast resources and potential for habitable planets, M dwarfs offer the best chance for scientists to discover life-supporting exoplanets.
Researchers have discovered that far-ultraviolet radiation from stellar flares on red dwarf stars can be three times more energetic than previously thought. This finding challenges existing models of exoplanet habitability and suggests that many stars may pose a risk to the potential for life on planets around them.
The European Space Agency's PLATO mission aims to find nearby potentially habitable worlds around Sun-like stars. The space telescope will blast into orbit in December 2026 and study the stars using a range of techniques, including asteroseismology, to work out their masses, radii, and ages.
Astronomers have uncovered 21 neutron stars in wide orbits around stars like our Sun, revealing the first dark neutron star population. The discovery was made possible by the European Space Agency's Gaia mission, which scanned the sky and measured wobbles of over a billion stars.
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.
Researchers have proposed a new model explaining neutron star glitches, suggesting that the power-law behavior of glitch energies is due to the formation of twisted clusters of superfluid vortices. The study found that the exponent for the power-law behavior closely matched the observed data.
New simulations show that neutrinos created during neutron star collisions can be trapped at the interface of merging stars and interact with matter for 2-3 milliseconds. This brief out-of-equilibrium phase is crucial in understanding the physics of these extreme events.
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.
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.
Researchers have discovered three of the oldest stars in the universe, forming between 12 and 13 billion years ago. The team believes these 'Small Accreted Stellar System' (SASS) stars originated from small primitive galaxies absorbed by the Milky Way.
Astronomers confirm that chemical composition differences in binary stars can be traced back to the earliest stages of their formation. The study used precise spectrographic measurements to rule out two explanations and confirmed primordial inhomogeneities within the molecular cloud as the origin of the discrepancies.
A team of astrophysicists has directly detected stellar winds from three Sun-like stars, providing constraints on their mass loss rates. The study used XMM-Newton space telescope observations and estimated mass loss rates up to 66.5 times the solar mass rate.
Megan Reiter, assistant professor of physics and astronomy at Rice University, has received a $951,446 NSF grant to study the influence of neighboring stars on planet formation. Her research aims to clarify key forces shaping planet formation by exploring interplay between stars, planets, and environments.
Researchers have discovered a magnetic massive star that was produced by a stellar merger, offering new insights into the formation of these stars. The study, which monitored a binary system for nine years, found that one of the stars had a magnetic field and appeared younger than its companion.
Physicists calculated that neutron stars can heat up quickly due to energy transfer from dark matter particles, providing a potential way to detect dark matter. This process could reveal the nature of dark matter and its interactions with regular matter.
Astrophysicists simulated 1,000 stars orbiting the galaxy's central supermassive black hole and found that collision survivors can lose mass to become stripped down low-mass stars or merge with other stars. The likelihood of collision increases for stars closer to the supermassive black hole.
Astronomers Khyati Malhan and Hans-Walter Rix identified two proto-galactic fragments, Shakti and Shiva, that merged with an early Milky Way between 12-13 billion years ago. These remnants share low metal content and unusual energy and angular momentum values, making them potential ancestors of the galaxy.
A team of astrophysicists simulated models of stellar mergers and analyzed 59 early B-type blue supergiants in the Large Magellanic Cloud. The study found that mergers can reproduce the surface composition of a large fraction of the sample, suggesting they may be the dominant channel to produce blue supergiants.
Astronomers have found a second-generation star in the Large Magellanic Cloud that formed in a different galaxy, offering clues about how elements were enriched in the universe. This discovery provides new hints about the early element-forming process and suggests that conditions may not be the same across all galaxies.
Researchers discovered that twin stars differ in composition due to one star devouring planets or planetary material. The study used high-precision analysis and found the phenomenon in about eight percent of 91 pairs of twin stars, shedding light on planet evolution theorists.
A team of researchers discovered that some white dwarf stars stopped cooling due to the formation of floating crystals, which displace heavier material and release gravitational energy. This phenomenon challenges the traditional view of white dwarfs as 'dead stars' and requires a revision of astronomy textbooks.
Astronomers have spotted a galaxy that stopped forming new stars over 13 billion years ago, when the universe was just 700 million years old. The 'dead' galaxy experienced a short and intense period of star formation, followed by rapid quenching.
A team of astronomers has shed new light on the process of planet formation through a groundbreaking survey of over 80 young stars. The research provides a wealth of data and unique insights into how planets arise in different regions of our galaxy, revealing diverse patterns of planet-forming discs.
A study of the Orion Nebula reveals that massive stars play a crucial role in shaping planetary systems. The intense ultraviolet radiation from these stars can either facilitate or hinder planet formation, depending on the mass of the star at the system's center.
Researchers have directly detected the feeble glow of cannibalized stars, revealing a key stage in the lives of close stellar pairs. The study identifies new orbits of stripped subdwarf stars around fast-spinning massive stars, shedding light on star formation and evolution.
A team of MIT physicists analyzed Gaia and APOGEE data to find stars farther out in the galactic disk are rotating more slowly than expected. This flat rotation curve indicates a lower mass galactic core, potentially containing less dark matter than previously estimated.
A team of international scientists has spotted a new type of elderly giant star, nicknamed 'old smokers,' which emits clouds of smoke over decades. These stars, hidden from view in visible light, were discovered using infrared light and have significant implications for the spread of heavy elements in space.
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.
A new study places the likelihood of massive neutron stars having deconfined quark matter at 80-90%. This is made possible through Bayesian statistical inference and massive supercomputer runs. The research has implications for our understanding of particle and nuclear physics, as well as astrophysics.
Researchers from EPFL and University of Bologna used asteroseismology to calculate star distances, providing accurate measurements and validating Gaia's parallax data. The study analyzed over 12,000 oscillating red giant stars, measuring their vibrations and oscillations to determine stellar properties.
Researchers have uncovered a population of 25 intermediate-mass helium stars that bridge the gap in knowledge about hydrogen-poor supernovae. These stars were found using UV photometry and optical spectroscopy, with strong spectral signatures of ionized helium confirming their composition.
Researchers have identified a population of massive stars stripped of their hydrogen envelopes by their companions in binary systems. These hot helium stars are believed to be the origins of hydrogen-poor core-collapse supernovae and neutron star mergers, shedding new light on a long-theorized phenomenon.
The EXPLORE toolkit offers interactive visual analytics and machine learning to analyze galaxy data, identify unusual stars, and visualize the lunar surface. Users can create immersive experiences, including 3D models of the Moon and interactive sky maps.
Researchers found that ancient stars created elements with atomic masses greater than 260, challenging current knowledge. This discovery provides insight into the process of heavy element formation in stars and could help explain the diversity of elements on Earth.
Researchers at Lund University have determined the age of three mysterious baby stars at the heart of the Milky Way, finding them to be 100 million to 1 billion years old. The stars' unusual chemical composition also surprised the team, indicating that the galaxy's center may be inhomogeneous.
Astronomers discover star S0-6 with chemical composition similar to small galaxies outside Milky Way, suggesting extragalactic origin. The star, 10 billion years old, has traveled over 50,000 light-years from its birthplace to reach vicinity of Sagittarius A*, raising questions about its past and possible companions.