Astronomers have discovered that the number of newly formed stars is higher than initially calculated, with heavy stars forming in clusters near the center of galaxies. The study found that these clusters are more common in the core regions of galaxies, leading to a different ratio of heavy to light stars.
A recent INFORMS study suggests that hiring top talent from competitors may not lead to improved performance. Instead, the performance of stars depends on firm-specific human capital and colleague relationships. The study's findings warn managers against expecting significant gains from hiring stars.
Astronomers have discovered identical twin stars that formed at different times, challenging current star-formation theories. The analysis reveals significant differences in brightness, surface temperature, and possibly size between the two stars, with one being about 2x brighter and 300 degrees hotter than its twin.
A team of researchers, led by Stephanie Wachter and Vikram Dwarkadas, investigated the mysterious ring surrounding magnetar SGR 1900+14. They concluded that a powerful flare from the magnetar formed the ring, which measures seven light-years across.
Case Western Reserve University astronomers have upgraded their telescope to detect intracluster light, a type of starlight formed during galaxy collisions. The new camera system allows them to measure the color of these stars, which can indicate the age of the Virgo cluster.
A team of astronomers from Queen's University Belfast have discovered the nature of five supernova precursor stars using Hubble images. The study reveals that stars with masses as low as seven times the mass of the Sun can explode as supernovae, challenging current understanding of massive star collapse.
Researchers have found evidence of small, sandy particles orbiting a newborn solar system at a distance similar to the Earth's orbit around the sun. The discovery sheds light on how Earth-like planets may form and offers new opportunities for studying the chemical composition of these particles.
Researchers at the University of Rochester found that planets or low-mass stars orbiting dying stars create breathtaking objects in the sky. The study explores how these companions shape planetary nebulae through spiral waves and magnetic fields, producing striking shapes like the Dumbbell Nebula.
The Large Binocular Telescope on Mount Graham achieved its first binocular light using twin side-by-side 8.4-meter primary mirrors, showcasing the telescope's power and clarity. The images reveal details of the spiral galaxy NGC 2770, including newly formed hot stars and older, cooler stars.
Astronomers have discovered that many nearby sun-like stars may form rocky planets, with potential for life being more common than thought. The study suggests that at least 20 percent to 60 percent of stars similar to the sun are candidates for forming terrestrial worlds.
New research by Arecibo Observatory increases the mass limit for neutron star formation into black holes, suggesting they may be more rare. Neutron stars are found to remain stable between 1.9 and 2.7 sun masses, contradicting previous thought.
Astronomers at Rutgers and Penn State universities discovered galaxies in the distant universe that are ancestors of spiral galaxies like our Milky Way. The newly discovered galaxies are small and have fewer stars, but were fertile breeding grounds for new stars that ionized hydrogen atoms and emitted Lyman alpha light.
Researchers found blue clusters of stars, nicknamed 'blue blobs', in a structure called Arp's Loop between M81 and M82 galaxies. The stars are less than 200 million years old and contain the equivalent of five Orion Nebulae.
A new study suggests that the universe's first stars were dark, invisible 'dark stars' powered by dark matter. These massive stars could be billions of years old and would generate gamma rays, neutrinos, and antimatter.
Researchers at the University of Michigan have found two young stars with gaps in their protoplanetary disks, suggesting infant planets cleared debris. The study provides new insights into solar system formation and history.
Researchers have found eight white dwarf stars with pure carbon atmospheres, challenging existing theories on stellar evolution. The discovery may provide a unique view into the hearts of dying stars, shedding light on their evolutionary sequences.
Researchers at University of Bonn use computer simulations to understand how star clusters are formed from interstellar gas clouds and evolve over time. The study finds that small clusters are easily destroyed by radiation from stars, while heavy clusters survive longer.
Researchers found a strong correlation between black hole presence and reduced star formation in heavy galaxies. The energy generated by massive black holes may heat up gas, preventing new stars from forming.
A groundbreaking study reveals that the first stars formed at the start of the Universe depend on dark matter's nature. The research suggests that some of these primordial stars can still be found in the Milky Way galaxy today.
The universe's earliest stars, formed in warm dark matter strings, could help clarify whether the universe is made of warm or cold dark matter. These ancient stars would have formed in long filaments and could provide new insights into dark matter's energy and its impact on galaxy formation.
A study of over 1050 North American and European musicians found that they are more than twice as likely to die an early death compared to the general population. Long-term drug or alcohol problems accounted for nearly one in four deaths, with some stars continuing to experience higher death rates even 25 years after achieving fame.
Researchers have observed the properties of neutron stars, including their sizes and masses, using a new technique that exploits Einstein's general theory of relativity. The study provides insights into the extreme conditions within these ultradense objects.
Astronomers have used XMM-Newton and Suzaku to measure the diameters and masses of neutron stars, confirming Einstein's predicted distortion of space-time. The technique involves observing the iron lines produced by hot atoms swirling around neutron stars.
Astronomers have pioneered a new technique to measure the properties of neutron stars, allowing them to study the extreme conditions under which matter is packed. Using XMM-Newton and Suzaku satellites, scientists observed distorted space-time around three neutron stars, confirming predictions by Einstein's theory of general relativity.
In the circumstellar environment, newly formed elements make compounds and life takes off for the first time. The shells around dying stars enable a chemistry that produced grains older than our sun itself.
Astronomers used powerful telescopes to detect giant Jupiter-like planets in the outer regions of nearby solar systems, but found none beyond 5 astronomical units from their stars. The survey, which was conducted over three years, aimed to determine what the average planetary system looks like and whether ours is typical.
Researchers have captured an image of Altair, a hydrogen-burning star like our own sun, for the first time. The image was made possible by a novel system to clean up distortions from Earth's atmosphere and a multi-telescope system that combines information from small, distantly spaced telescopes.
The Hubble Space Telescope provides a detailed view of Messier 81, revealing young blue stars and glowing regions of fluorescent gas. The galaxy's central black hole is 15 times the mass of the Milky Way's black hole.
Astronomers have determined the properties of a rare binary star system using NASA's FUSE satellite and ground-based telescopes. The system, LH54-425, consists of two massive O-stars with combined mass of about 100 suns, orbiting each other every 2.25 days.
Researchers found evidence of three distinct star populations born within 200 million years in the massive globular cluster NGC 2808. This discovery challenges the long-held assumption that all stars originated at the same time and place, shedding new light on stellar formation in distant galaxies.
New observations by the Hubble Space Telescope reveal that a massive globular cluster can go through several periods of intense stellar formation, contradicting the previous accepted single burst theory. The analysis shows three distinct populations of stars, each with a slightly different mix of chemical elements.
Astronomers have identified an X-ray-emitting binary star system in the Small Magellanic Cloud, 170,000 light-years from Earth. The system, HD 5980, features two stars with intense winds that collide and produce multimillion-degree gas radiating brilliantly in X-rays.
The NARVAL observatory, installed at the Bernard Lyot Telescope, allows scientists to study magnetic fields of stars and their impact on planetary formation. SU Aurigae's complex magnetic 'web' was observed using NARVAL and ESPaDOnS, revealing new insights into stellar evolution.
Researchers at the University of Illinois at Urbana-Champaign have observed a superbubble forming in the Small Magellanic Cloud, a galactic neighbor of the Milky Way. The study reveals that multiple massive stars are blowing bubbles and overlapping supernova remnants, which may eventually merge into one enormous cavity.
Astronomer Nathan Smith proposes a new theory for the origin of the 1987 supernova's triple-ring nebula, suggesting that unstable blue supergiant stars, called luminous blue variables, may be responsible. Three nearby stars with similar nebulae have been discovered, contradicting the prevailing merger and red-to-blue transition explana...
Astronomers have discovered a population of small newborn stars in N90, a fascinating star-forming region located in the Small Magellanic Cloud. The high-energy radiation from these young stars is eroding the surrounding nebula, revealing the early stages of star formation processes.
Astronomers have discovered an enormous halo of red giant stars surrounding the Andromeda galaxy, extending beyond its visible disk and indicating that it may be five times larger than previously believed. The discovery is based on observations of over 500,000 light-years of starry space using advanced telescopes.
Scientists have identified a new type of massive stellar death, where stars may collapse into black holes without exploding in supernova explosions. This discovery was made using data from two long-duration Gamma-ray bursts detected by NASA's Swift satellite.
Researchers created a mathematical code that describes how low-mass stars destroy helium-3 during evolution. This process resolves the discrepancy between helium-3 abundance and the Big Bang theory, providing insights into the universe's early stages.
Astrophysicists have resolved a long-standing issue with the Big Bang theory by studying gas movements in stars. Computer models revealed that low mass stars destroy helium 3 before it can be released into space, resolving the discrepancy.
Astronomers discover sun was born in a massive star cluster, challenging current theories on planetary formation. The researchers used radioactive isotopes from meteorites to calculate the distance and time of a nearby supernova, suggesting that hundreds or thousands of solar siblings may exist.
A team of astronomers discovered that many large galaxies in the early universe had a low stellar birth rate, suggesting a cosmic 'birth control' mechanism that prevented excessive star formation. The study found that these galaxies formed stars when the universe was just 20% of its current age.
Two new planets have been discovered by astronomers, both extremely close to their stars and estimated to be around 3,272 degrees Fahrenheit. The discovery is made possible by the transit method, which detects slight dimming of starlight as planets pass in front of their stars.
Researchers found that at least two objects in the Quintuplet Cluster are binary pairs forming pinwheel stars that live fast and die young. These 'Wolf-Rayet colliding-wind binaries' emit enormous amounts of radiation, with each quintuplet outshining the Sun by 10,000 to 100,000 times.
An international team of astronomers has identified the dimmest stars in globular star cluster NGC 6397 using NASA's Hubble Space Telescope. The discovery provides clues to the age of the Universe and the formation time of one of its earliest generations of stars.
Astronomers use Hubble Space Telescope to image two mysterious star types, including tiny, slow-burning stars and ancient, giant white dwarfs. The research pushes limits of observatory's capabilities, gathering data that will help refine theories about low-mass stars and the universe's age.
Researchers have found evidence of a binary system in the Quintuplet cluster, where two massive stars are orbiting each other. The discovery of 'pinwheel-shaped' dust spirals around these stars provides further proof of their dual nature and corrects previous estimates of their sizes.
Researchers have solved the mystery of Quintuplet stars by identifying them as young massive binary stars producing large amounts of dust. The study captures the stars just before disintegrating in supernovae explosions, revealing a unique pinwheel nebulae around each star.
Astronomers have discovered the faintest stars in a globular star cluster using Hubble's Advanced Camera for Surveys. The study reveals insights into the age, origin, and evolution of NGC 6397, which is estimated to be nearly 12 billion years old.
Researchers studied globular star cluster NGC 6397, capturing high-resolution images of faint stars. They identified two fundamental transitions in star physics related to age, which may refine the Milky Way's age. The findings provide insights into the physics of low mass stars and white dwarfs.
A new, detailed view of a star-forming association in the Large Magellanic Cloud provides a rich sample of newly formed low-mass stars, allowing for accurate age and mass calculations. The image reveals small compact clusters hosting hundreds of infant low-mass stars, as well as distant galaxies decorating the background.
Astronomers propose that super-Earths can form around red dwarf stars via ultraviolet stripping, a process previously thought to only create gas giant planets. The new theory suggests that the mass of the central star determines whether a planet forms as a gas giant or a super-Earth.
Researchers have discovered the Universe's strongest magnetic field, generated by violent collisions between neutron stars. The discovery sheds light on the mysterious short Gamma-ray bursts, which are the most powerful explosions in the universe. Scientists believe that strong magnetic fields play a crucial role in their formation.
Astronomers have discovered an eclipsing pair of brown dwarfs in the Orion Nebula, providing the first direct measurement of their mass, size, and surface temperature. This discovery sheds light on the dynamic processes that produce stars and helps estimate the masses of faint objects.
Margaret Turnbull has shortlisted five stars for radio signal detection and five for direct imaging of Earth-like planets. Her criteria include age, metallicity, and residency on the main sequence, favoring Sun-like stars with stable orbits.
Researchers have discovered young, massive stars in ultra-luminous infrared galaxies, surrounded by delicate crystalline silicates called Forsterite. This finding provides new insights into the formation and evolution of these violent cosmic environments.
The RAVE survey has released its first dataset, containing information from 25,000 stars born when the Milky Way was in its infancy. The data will allow astronomers to test ideas of the galaxy's origins laid out by various cosmological theories.
Astronomers discovered dusty disks around two massive stars, suggesting that planets might form and survive in hostile environments. The discovery expands the range of known conditions for complex dust grain formation and potentially indicates that these stars are forming planets.
Researchers at the University of Illinois created composite images of optical, radio, infrared, ultraviolet and X-ray wavelengths to understand massive stars' impact on their galactic surroundings. The study reveals that massive stars energize and enrich the interstellar medium with strong ultraviolet radiation and fast stellar winds.
The Hubble Space Telescope has captured the sharpest view ever taken of the Orion Nebula, revealing a tapestry of star formation and large-scale structures. The image showcases over 3,000 stars of various sizes, including possible young brown dwarfs and binary brown dwarfs.