Researchers observed four colliding galaxies and found a lag between dark matter and its associated galaxy, suggesting that dark matter interacts with forces other than gravity. This discovery could be the first evidence for rich physics in the dark sector, helping scientists better understand dark matter's nature.
A recent study published in Science reveals that dark matter particles do not interact with themselves when galaxy clusters collide, contradicting the view that they consist of proton-like particles. This finding challenges a major theory and raises new questions about the nature of dark matter.
A study by University of Maryland scientists has found a functional link between supermassive black holes and molecular outflows in galaxies. The research suggests that the black holes' winds are powerful enough to drive these massive outflows, which remove star-making gas and shape the galaxy's fate.
Researchers connect a black hole's 'wind' to an outward torrent of cold gas in a galaxy, validating feedback mechanisms that influence galaxy evolution. The discovery resolves a long-standing puzzle and sheds light on the relationship between supermassive black holes and their host galaxies.
Researchers found two ancient stars in Sculptor dwarf galaxy with unusual chemical content, suggesting a single supernova explosion may have seeded the gas cloud. This discovery provides an unprecedented view of the earliest history of another galaxy.
An international team of astronomers has discovered a hot, dusty cloud of molecular gases in a dwarf galaxy near our own, where over 1 million young stars are forming. The star cluster is buried within a supernebula and contains massive 'O' stars that are a million times brighter than the sun.
Astronomers spotted a distant supernova split into four images due to the gravity of a massive elliptical galaxy embedded in a cluster. The unique observation will help refine dark matter estimates and study the mass of the lensing galaxy and cluster.
Researchers observed a rare phenomenon where the light from a distant supernova is deflected by a massive galaxy, creating four separate images. The discovery provides insights into dark matter, which makes up about 95% of the universe's mass.
A team of astronomers has discovered a distant star exploding as a supernova, with four images captured by NASA's Hubble Space Telescope. The unique alignment is due to the powerful gravity of a foreground galaxy embedded in a massive cluster, providing a rare opportunity to study dark matter.
Astronomers spot four images of a distant supernova in a massive galaxy cluster, bending light due to gravitational lensing. The discovery provides insights into dark matter's distribution and helps refine estimates of its amount.
A team of astronomers discovered a young and remote galaxy with dust levels similar to mature galaxies like the Milky Way, defying expectations. The galaxy, A1689-zD1, was observed using ALMA and VLT instruments and found to be emitting radiation in the far infrared, indicating significant star formation.
Astronomers found a supermassive black hole actively heating and blasting gas in the galaxy J1430+1339, transforming it into an elliptical-type galaxy devoid of gas. The VLA observations revealed powerful jets and winds that remove or destroy raw material needed for star formation.
A new study confirms dark matter's presence in the inner part of the Milky Way, including at our own cosmic neighborhood. Scientists created a comprehensive compilation of published measurements to observe rotation speeds and found that dark matter is needed to explain observed speeds.
Astronomers validate earlier prediction of dark-matter dominated dwarf galaxy's location by discovering young Cepheid variables in the Norma constellation. The discovery sheds light on the nature of dark matter and confirms Newton's theory of gravity.
A team of researchers from Case Western Reserve University has discovered new features of the 'Whirlpool Galaxy', M51a, using a 20-hour exposure photograph. The image reveals faint plumes extending from the galaxy's northeast and south, providing valuable insights into its history and interaction with neighboring galaxies.
The discovery of enormous radiation bubbles in the Milky Way's center may hold clues to understanding the galaxy's past and potentially revealing dark matter. Studies of these Fermi bubbles could offer insight into the history of our galaxy, including the activity of its black hole.
Researchers propose that the Milky Way galaxy may contain a space-time tunnel, also known as a wormhole, which could be navigable. The study combined dark matter maps with general relativity equations to suggest this possibility.
Researchers have created a unique map of enigmatic molecules in our galaxy, revealing their locations and environments. The study, led by Johns Hopkins astronomers, analyzed light from hundreds of thousands of celestial objects to detect the features of these mysterious molecules.
A study of Andromeda's stellar disk reveals a more disordered population than the Milky Way's, suggesting recent mergers with smaller galaxies. The researchers found that younger stars have relatively ordered rotational motion, while older stars display much more disordered motion.
Astronomers witness billowing clouds of gas towering above and below the plane of our galaxy, driven by a titanic eruption in the galactic core. The Hubble Space Telescope measures velocity and composition of the mystery lobes, revealing unique information about the expanding gas.
The Hubble Space Telescope has captured the sharpest large composite image of the Andromeda galaxy, revealing over 100 million stars in a 61,000-light-year-long stretch. This panoramic view provides unprecedented insights into the galaxy's structure and evolution.
A team of astronomers has discovered a rare type of galaxy, named J1649+2635, that has prominent 'jets' of subatomic particles propelled outward from its core at nearly the speed of light. The unusual feature is unexpected in spiral galaxies.
Researchers analyzing decades of observations detect an unusual source of light in a galaxy, with properties suggesting it could be a supermassive black hole ejected from its home galaxy. Alternatively, the object might have been a rare type of star known as a Luminous Blue Variable that underwent prolonged eruptions.
Astronomers have discovered a galaxy, AzTEC-3, that gives birth to 1,100 suns annually, creating about three suns each day. This ancient galaxy is one of the earliest examples of a starburst galaxy, fuelled by massive material and galactic mergers.
The Hubble Space Telescope has observed the faint glow of stars ejected from ancient galaxies torn apart within the Pandora's Cluster. The scattered stars are estimated to contribute approximately 10% of the cluster's brightness and are rich in heavier elements.
Researchers at the University of Bonn and Cardiff develop a new observational strategy for imaging extremely distant galaxies, using ALMA radio telescope data. This method improves upon previous efforts by accurately estimating molecular hydrogen presence in these galaxies, providing insights into galaxy formation and star creation.
Astronomers have combined traditional method with reverse engineering to improve accuracy in measuring distant galaxies. They calculated a robust distance measurement using near-infrared and visible-light photos, estimating a redshift of 10 for the galaxy.
Astronomers use a cosmic magnifying glass to spot a tiny, faint galaxy more than 13 billion light-years away. The discovery provides insight into the early universe and suggests that small, faint galaxies existed about 500 million years after the big bang.
Astronomers discovered that nearby dwarf spheroidal galaxies lack star-forming gas, while those beyond a certain distance have abundant hydrogen. The Milky Way's gravity affects the composition of its smallest neighbors, shutting down star formation.
Astronomers used Hubble and ground observations to find the M60-UCD1 dwarf galaxy containing a massive black hole. The discovery suggests compact galaxies may be remnants of larger galaxies torn apart during collisions.
Researchers found a tiny galaxy, M60-UCD1, hosting a supermassive black hole with a mass of 21 million suns. The discovery suggests many ultracompact dwarf galaxies may contain huge black holes. The team used Gemini North and Hubble Space Telescope observations to estimate the black hole's mass.
Astronomers using Hubble have found the smallest known galaxy with a supermassive black hole at its center. The galaxy, M60-UCD1, has a diameter of just 300 light-years and contains 140 million stars, yet it harbors a massive black hole weighing five times that of the Milky Way's central black hole.
Researchers have found a supermassive black hole at the center of an ultra-compact galaxy, M60-UCD1, with a mass of 21 million suns. This discovery suggests that these massive black holes are more common in less-massive galaxies than previously thought.
The Milky Way galaxy is part of a new, massive galactic supercluster called Laniakea, which spans 500 million light-years and contains 100,000 galaxies. The discovery clarifies the boundaries of our local Universe and provides new insights into the motion of galaxies.
Astronomers have discovered a compact galactic core, nicknamed Sparky, which is seen as it appeared 11 billion years ago. The infant galaxy contains twice as much mass as the Milky Way and is producing 300 stars per year, a rate three times faster than our galaxy.
Case Western Reserve University astronomers will study the outskirts of spiral galaxy M101 using Hubble Space Telescope data. The research aims to determine how galaxies form over time, with findings that could challenge current understanding of galaxy formation.
Astronomers have observed the earliest stages of massive galaxy construction, dubbed 'Sparky', which contains about twice as many stars as our Milky Way. The discovery was made possible through combined observations from NASA's Hubble and Spitzer space telescopes.
Astronomers have discovered the most distant galaxy that acts as a cosmic magnifying glass, with a massive elliptical galaxy weighing 180 billion times more than our sun. The lensing effect offers insight into how young galaxies build themselves up into today's massive dark-matter-dominated galaxies.
Astronomers have mapped the mass within a galaxy cluster, MCS J0416.1-2403, more precisely than ever before using unprecedented depth of data from Hubble's Frontier Fields programme. The team identified 51 new multiply imaged galaxies around the cluster, quadrupling the number found in previous surveys.
A team of astronomers from RIT helped analyze data showing two elliptical galaxies coalescing in a dense galaxy cluster. The study reveals rare insights into elliptical galaxy mergers and finds a string-of-pearl star formation structure with 19 young blue clusters.
Astronomers have discovered that ALESS65 galaxy is running out of gas at an alarming rate, with only tens of millions of years left, much faster than the Milky Way's 5 billion years. The team found similar characteristics to nearby 'starbursting' galaxies in terms of UV radiation, suggesting a unique star formation process.
Academics from the University of Sheffield have solved a long-standing mystery surrounding galaxy evolution by discovering that supermassive black holes accelerate molecular gas outflows at incredible speeds. This finding deepens our understanding of the future of the Milky Way and its impending collision with Andromeda.
Researchers have discovered a rapidly moving gas streamer blocking X-rays from the galaxy's nucleus, indicating a significant decrease in radiation. This phenomenon may regulate the growth of both the supermassive black hole and its host galaxy.
A new study questions the accepted model of galaxy formation, suggesting that dwarf galaxies may have formed from another galaxy through a tidal interaction. The research criticizes three recent papers that found satellite galaxies to support the standard model, instead finding 'serious issues' with their methods.
Researchers believe a high-velocity hydrogen cloud, known as the Smith Cloud, contains and is wrapped in a substantial halo of dark matter, allowing it to survive a collision with the Milky Way. The discovery could provide insights into the formation of galaxies and the earliest star formation in our galaxy.
Astronomers have found the closest, second-brightest hypervelocity star, speeding at 1 million mph. The star probes the supermassive black hole at the galaxy's center and the halo of mysterious dark matter, providing insights into the galaxy's structure.
Researchers found a runaway star cluster named HVGC-1 in the M87 galaxy, moving at over two million miles per hour. The cluster was likely flung out of the galaxy by supermassive black holes at its core.
The spiral galaxy ESO 137-001 is zooming through the Norma cluster at nearly 4.5 million miles per hour, stripping gas from its home and forming new stars in intergalactic space. Astronomers hope that studying this galaxy can help them understand how galaxies form stars and evolve over time.
Astronomers have found a new superpowered small black hole named MQ1 in galaxy M83, which is classed as a microquasar with jets that heat and sweep away surrounding gas. The discovery sheds light on early universe evolution and provides insight into the growth of quasars.
The Hubble Space Telescope has captured an image of SN 2014J, a Type Ia supernova discovered in the galaxy M82. The observations will help refine distance measurements to these explosions, which are essential for understanding the accelerating expansion of the universe.
Researchers from the Niels Bohr Institute detected a stream of stars in Andromeda II, revealing a remnant of a merged dwarf galaxy. The findings provide insight into the rare event of low-mass galaxy mergers, which are expected during galaxy formation.
A team of astronomers has discovered four new galaxy clusters, each containing thousands of individual galaxies, some 10 billion light years away. The clusters are seen as they existed 3 billion years ago, providing insights into the formation of giant elliptical galaxies.
A team of scientists has detected for the first time in an individual object the kinetic Sunyaev-Zel'dovich effect, a change in the cosmic microwave background caused by massive moving objects. The observation was made using the Caltech Submillimeter Observatory and confirms predictions of cosmological theory.
A team of astronomers discovered a primordial galaxy, Himiko, seen at 800 million years after the Big Bang. The observations using Hubble and ALMA revealed intense star formation, but puzzlingly low metal content, challenging current star formation theories.
An international team of astronomers has discovered a surprising new class of hypervelocity stars moving fast enough to escape the gravitational grasp of the Milky Way galaxy. The new stars are relatively small and have different ejection mechanisms than previously discovered hypervelocity stars.
A study of massive stars confirms the Milky Way has four spiral arms, contradicting previous findings from NASA's Spitzer Space Telescope. The researchers used data from radio telescopes in Australia, USA and China to analyze the distribution of massive stars across the galaxy.
The Green Bank Telescope has captured detailed images of M82, highlighting streamers of material and dense molecular gas surrounding areas of intense star formation. Astronomers hope to understand the connection between dense gas and star formation by creating wide-angle maps of galaxy gas.
Astronomers Alice Quillen and her team developed a mathematical model to understand the movement of stars in the galactic bulge, finding that peanut-shell shaped orbits are consistent with observed effects. The new research aims to improve our understanding of galaxy formation and evolution.
A massive gas cloud called the Smith Cloud is hurtling towards our Galaxy, and may be a key source of fuel for star formation. The cloud has been found to have a magnetic field that helps keep it intact, protecting it from disintegrating as it approaches the Galaxy's disk.
Astronomers observed a spiral galaxy with a strongly-emitting background galaxy nearly directly behind it. The alignment provides valuable data about the nearer galaxy, revealing it is not forming stars as rapidly as thought. Additional analysis also revealed detailed features of the galaxy's gas halo.