Articles tagged with Stars
Researchers at Georgia Institute of Technology have developed a new skin treatment using microscopic STAR particles that can deliver drugs directly to affected areas. The treatment, which involves rubbing the particles on the skin, has shown promising results in inhibiting tumor growth in mice.
Researchers at the University of Washington and Lowell Observatory found that Betelgeuse's surface temperature remains relatively stable despite recent dimming. The team calculated the average surface temperature of the star using a filter to 'dampen' its light, revealing a surface temperature of around 3,325 degrees Celsius.
New research suggests that some 'cotton candy' exoplanets could have rings, challenging current ideas about their low densities. The discovery proposal, led by Anthony Piro and Shreyas Vissapragada, simulates how ringed exoplanets would appear to astronomers using high-precision instruments.
The Sombrero galaxy's halo is home to an unexpected abundance of metal-rich stars, defying conventional theory. Researchers attribute this finding to major mergers in the galaxy's past, which are puzzling given the galaxy's smooth disk structure.
A sub-Neptune sized planet, G 9-40b, has been validated as an exoplanet using the HPF at the Hobby-Eberly Telescope. The discovery confirms the planet's mass and orbits its low-mass host star 100 light years from Earth.
Laura Sales, an assistant professor at UC Riverside, has received a $720,000 NSF CAREER Award to study dark matter content in dwarf galaxies. Her research aims to refine the Lambda Cold Dark Matter model and address questions about galaxy formation and evolution.
A team of researchers discovered a massive galaxy dying 1.5 billion years after the Big Bang, with its core already fully formed at that time. This finding challenges previous measurements and adds to our understanding of the universe's formation.
Astronomers have discovered a flock of young stars on the outskirts of the Milky Way, suggesting that material from nearby dwarf galaxies, the Magellanic Clouds, is forming new stars. The discovery implies that a stream of gas extending from the galaxies is closer to crashing into the Milky Way than previously thought.
The telescope will image large areas of the sky 1,000 times faster than Hubble, surveying as much of the sky in near-infrared light -- in just as much detail -- as Hubble has over its entire three decades. WFIRST will provide a broad and detailed view of the sky to answer fundamental questions about the universe.
PPPL made significant strides in fusion energy development, including the creation of a supersonic plasma jet that could study stellar bodies light years away. The Laboratory also partnered with Princeton University to study low-temperature plasma and developed an award-winning apprenticeship program for early career technicians.
Astronomers using the GMRT have discovered a massive ring of hydrogen gas surrounding a galaxy, with a diameter of 380,000 light-years. The origin and formation mechanism of such rings remain unknown, despite previous thought that they are associated with galaxy-galaxy collisions.
Researchers found a massive gas disk around the 40-million-year-old star 49 Ceti, contradicting conventional planet formation predictions. The discovery raises questions about the origin of the gas and its impact on planetary composition.
Researchers analyzed rotation curves of low-surface-brightness galaxies to discover a universal relationship describing dark matter's distribution. This result consolidates clues on dark matter's presence and behavior, opening up new scenarios for interactions with bright matter.
A distant galaxy with over a trillion stars showed that the 'cores' of massive galaxies formed 1.5 billion years after the Big Bang, about 1 billion years earlier than previously thought. Researchers used telescopes to observe the quenching galaxy and found suppressed star formation.
Researchers are exploring how cover crops can enhance the sustainability of star fruit farms in Florida. By incorporating cover crops like sunn hemp and velvet bean into their practices, farmers can improve soil organic matter and reduce the need for synthetic inputs.
Researchers find no correlation between a gas giant planet's composition and its host star's heavy element content, contradicting previous theories on planetary formation. The authors suggest other factors, such as location in the disk or distance from neighbors, may be contributing to this discrepancy.
Researchers detected tera-electron volt radiation in the afterglow of GRB 190114C, a gamma-ray burst from a dying star. This validated their predictions and provided new insights into the extreme environment of gamma-ray bursts.
A team of astronomers used ALMA to study the structure of dense gas in N159, a bustling star formation region in the LMC. The observations found fan-shaped filaments of gas extending to the north with pivots in the southernmost points, similar shapes and ages of baby stars in two regions separated by 150 light-years.
A Northwestern University study combines 3D climate modeling with chemistry to explore the habitability of planets around M dwarf stars. The research finds that only planets orbiting active stars lose significant water to vaporization, making them less likely to sustain life.
A new cosmological simulation, TNG50, has revealed that the geometry of cosmic gas flows determines galaxies' structures. The study finds that galaxies form into disc-like shapes with rapid rotation, eventually becoming spiral galaxies through a process known as galactic fountains.
The satellite discovered 29 exoplanets and over 1,000 candidate planets in the southern sky. The mosaic also reveals celestial events such as comets, supernovae, and a black hole flare.
A study published in Nature Astronomy reveals thousands of new globular clusters have formed over the last billion years, primarily from a cool gas network surrounding giant galaxies. These clusters are thought to be the result of precipitation from hot gas and aging of stars.
Physicists propose detecting wormholes by searching for small deviations in the orbit of stars near Sagittarius A*, a supermassive black hole. The technique could reveal the presence of traversable or non-traversable wormholes.
Astronomers have found a massive monster galaxy in the early universe, hidden in dust, which has never been seen before. The discovery provides new insights into the first growing steps of some of the biggest galaxies in the universe.
Researchers used simulations to show how supermassive black holes' powerful jets are disrupted by hot gas and galaxies, preventing gas from cooling and forming stars. The team found that this 'weather' mechanism may solve the long-standing 'cooling flow' puzzle plaguing astrophysicists.
Researchers have successfully used a massive galaxy cluster as an X-ray magnifying glass to detect a tiny dwarf galaxy in its first, high-energy stages of star formation. The technique allows for the zooming in on extreme, distant X-ray-emitting phenomena and could be used to age-date different parts of a galaxy.
Researchers at UC Riverside discover large-scale winds associated with active black holes in small galaxies suppress star formation, impacting galaxy evolution. The team used the Sloan Digital Sky Survey data to identify 50 dwarf galaxies and found six of them showing signs of winds emanating from their active black holes.
The DUST experiment aims to shed light on cosmic dust formation and its impact on planet growth. By launching lab equipment into space, scientists can study the complex process of dust grain growth and aggregation.
Researchers have discovered that the galaxy Andromeda has eaten several smaller galaxies over the last few billion years, leaving behind remnants in large streams of stars. The study found faint traces of even earlier consumed galaxies, possibly dating back to 10 billion years ago.
The University of Massachusetts Lowell's PICTURE-C telescope was launched via a football field-sized helium balloon to study objects hidden by stars' glare. The instrument boasts an optical control system and can block out direct light from stars, allowing for the detailed study of nearby planets.
A new Yale University study reveals that supermassive black holes grow in tandem with their host galaxies, influenced by the rate of star formation. The research provides a sharper understanding of the intricate relationship between these cosmic entities.
A giant exoplanet has been found orbiting a small star, GJ 3512, which is unusual because low-mass stars should have less material to form planets. The discovery was made using the Doppler technique and suggests the presence of another massive planet that may have been ejected from the system.
Scientists at Hokkaido University detected nucleobases in a simulated interstellar cloud environment, essential building blocks of DNA. The findings suggest that the processes could lead to the formation of molecular precursors of life.
Molecular clouds in distant galaxies have higher mass, density, and internal turbulence than those in nearby galaxies, producing more stars. The international team used ALMA to detect clouds in a Milky Way progenitor 8 billion light-years away.
Researchers analyze data from Gaia satellite and spectroscopy to find that older stars move more rapidly in and out of the Galaxy's disk. The findings provide insights into the history of our Galaxy and inform theories about star formation and evolution.
New study reveals that the temperatures on the dark sides of hot Jupiters are remarkably uniform, suggesting the presence of clouds made of minerals and rocks. This discovery could provide insights into cloud formation elsewhere in the universe, including on Earth.
Astronomers have discovered a massive planet three times the size of Jupiter that orbits its star on an egg-shaped path. The planet's unique orbit takes it from within our asteroid belt to beyond Neptune, providing a rare opportunity for scientists to study extreme planetary configurations.
The TEMPLATES team will study four galaxies using gravitational lensing to magnify light and gain insights into star formation. They aim to measure star-formation rates, map galaxy distributions, compare young and old stellar populations, and reveal how galaxies grow over time.
A University of Arizona-led team used supercomputer simulations to generate millions of virtual universes, challenging fundamental ideas about galaxy formation and the role of dark matter. The findings suggest galaxies formed stars more efficiently in the early universe than previously thought.
Astronomers have found a treasure trove of previously unknown ancient massive galaxies, defying current models of the universe. These galaxies are connected to supermassive black holes and dark matter, providing new insights into cosmic evolution.
Astronomers observe WASP-121b, a scorching hot exoplanet losing its atmosphere and emitting heavy metals like iron and magnesium. The planet's extreme conditions make it an ideal target for studying the physics of ultra-hot Jupiters.
Researchers have charted the Milky Way in three dimensions using thousands of pulsating stars, revealing a warped and twisted stellar disc. The new map provides a broad view of our place among the stars and constrains the previously observed shape of the Galaxy's disk.
The Transiting Exoplanet Survey Satellite (TESS) has discovered three new exoplanets, including one rocky planet in the habitable zone, which could potentially support liquid water and life. The newly found planets, TOI-270, are unique in that they occupy a 'missing link' between rocky Earth-like planets and gas-dominant mini-Neptunes.
Researchers detected gravitational redshift in star orbiting Sagittarius A* black hole, consistent with general relativity. The findings provide a 'transformational change' in understanding supermassive blackholes and their physics.
Astronomers have discovered that high-density gas, the material for stars, accounts for only 3% of the total mass of gas distributed in the Milky Way. This finding implies a small number of opportunities to form stars and will be investigated further using Fugin data.
A study led by the Instituto de Astrofísica de Canarias reveals the early days of the Milky Way's formation, identifying two distinct stellar components that merged to create our galaxy. The research uses accurate stellar ages and Gaia space telescope data to uncover the birth of the Milky Way with unprecedented detail.
A new method using red giant stars has measured the universe's expansion rate at 69.8 kilometers per second per megaparsec, settling between previous values of 74.0 km/s/Mpc and 67.4 km/s/Mpc. The result may indicate that the standard model of the universe is not yet complete.
Astronomers have made a new measurement of the Hubble constant using red giant stars, indicating an expansion rate of around 70 km/sec/Mpc. This measurement falls in the center of a hotly debated question and may lead to a new interpretation of the universe's fundamental properties.
A team of researchers has found a balance between hot gas, stars, and other materials in galaxy clusters. The study validates the prevailing cold dark matter theory and provides insight into the relationship between ordinary matter and dark matter.
A supermassive black hole at the centre of jellyfish galaxy JO201 is stripping away gas and throwing it out into space, accelerating the suppression of star formation. This process, known as ram-pressure stripping, has caused a brief increase in star formation due to the compression of clouds of gas.
Researchers from the University of Leeds have developed 3D holograms to share their work on massive star cluster formation with the general public. The holograms allow people to watch millions of years of stellar evolution in 3D, making it easier for non-experts to understand complex topics.
Astronomers have discovered a large amount of warm gas ejected in the Great Eruption of Eta Carinae, revealing an astonishingly different ultraviolet-light image. The newly revealed gas is important for understanding how the eruption began and could be used to study other stars and gaseous nebulas.
A mechanism for bicyclic silicon tricarbide formation has been identified in the circumstellar envelopes of carbon stars. Electronically excited silicon atoms react with allene and methylacetylene to form SiC3H2, which is then converted into c-SiC3 via stellar wind and UV light
A new study using the Keck Cosmic Web Imager has provided the clearest evidence yet that filaments of cool gas spiral into young galaxies, explaining how they can make stars on fast timescales. The observations suggest a cold-flow model of galaxy formation, where cool gas flows directly into forming galaxies and is converted into stars.
Scientists confirm electrically-charged molecules shaped like soccer balls in space, shedding light on the mysterious contents of interstellar medium. The discovery points toward a strong likelihood for other complex carbon-bearing molecules arising spontaneously in space.
IC 10 is the closest-known starburst galaxy, with ample supplies of cool hydrogen gas fueling its furious star formation. The faint object, located 2.2 million light-years from Earth, remains difficult to study due to cosmic dust and stars blocking our view.
Astrophysicist Allison Kirkpatrick announces the discovery of cold quasars, galaxies with abundant cold gas that can still form new stars despite having a quasar at the center. This breakthrough finding overturns assumptions about galaxy maturation and may represent a previously unknown phase in every galaxy's lifecycle.
A new method allows researchers to map magnetic field orientations in space using ground-based telescopes, revolutionizing studies of star formation and cosmic rays. The 'Wisconsin technique' generates high-resolution maps comparable to those obtained with the Planck mission.
The Hubble Space Telescope's Wide Field Camera 3 has captured a breathtaking image of NGC 7773, a mature barred spiral galaxy. The galaxy features a luminous bar-shaped structure, thought to be a sign of galactic maturity and stellar nursery.
Researchers used chemical composition of stars to determine Gaia Sausage's age, estimating it formed around 12.5 billion years ago. The study suggests a collision with the Milky Way disrupted star formation in our galaxy.