//www.koonmotors.com/news/space_time/cosmology/ Cosmology news. From deep observations of the far reaches of space and time to spectroscopic analysis and more. Read cosmology articles and consider how astronomers view the origin of the universe. en-us Mon, 16 Oct 2023 11:50:14 EDT Mon, 16 Oct 2023 11:50:14 EDT 60 //www.koonmotors.com/images/scidaily-logo-rss.png//www.koonmotors.com/news/space_time/cosmology/ For more science news, visit ScienceDaily. //www.koonmotors.com/releases/2023/10/231011182251.htm One of the greatest strengths of NASA's James Webb Space Telescope is its ability to give astronomers detailed views of areas where new stars are being born. The latest example, showcased here in a new image from Webb's Mid-Infrared Instrument (MIRI), is NGC 346 -- the brightest and largest star-forming region in the Small Magellanic Cloud. Wed, 11 Oct 2023 18:22:51 EDT //www.koonmotors.com/releases/2023/10/231011182251.htm //www.koonmotors.com/releases/2023/10/231006104524.htm The central question in the ongoing hunt for dark matter is: what is it made of? One possible answer is that dark matter consists of particles known as axions. A team of astrophysicists has now shown that if dark matter consists of axions, it may reveal itself in the form of a subtle additional glow coming from pulsating stars. Fri, 06 Oct 2023 10:45:24 EDT //www.koonmotors.com/releases/2023/10/231006104524.htm //www.koonmotors.com/releases/2023/10/231004132440.htm An international team of researchers has developed a new theoretical framework that bridges physics and biology to provide a unified approach for understanding how complexity and evolution emerge in nature. This new work on 'Assembly Theory' represents a major advance in our fundamental comprehension of biological evolution and how it is governed by the physical laws of the universe. Wed, 04 Oct 2023 13:24:40 EDT //www.koonmotors.com/releases/2023/10/231004132440.htm //www.koonmotors.com/releases/2023/10/231003104735.htm In the James Webb Space Telescope’s (JWST) first images of the universe’s earliest galaxies, the young galaxies appear too bright, too massive and too mature to have formed so soon after the Big Bang. Using new simulations, a team of astrophysicists now has discovered that these galaxies likely are not so massive after all. Although a galaxy’s brightness is typically determined by its mass, the new findings suggest that less massive galaxies can glow just as brightly from irregular, brilliant bursts of star formation. Tue, 03 Oct 2023 10:47:35 EDT //www.koonmotors.com/releases/2023/10/231003104735.htm //www.koonmotors.com/releases/2023/10/231002124300.htm 近年来,天文学在bi爱博网站t of crisis: Although we know that the Universe expands, and although we know approximately how fast, the two primary ways to measure this expansion do not agree. Now astrophysicists suggest a novel method which may help resolve this tension. Mon, 02 Oct 2023 12:43:00 EDT //www.koonmotors.com/releases/2023/10/231002124300.htm //www.koonmotors.com/releases/2023/09/230927154838.htm For the first time, in a unique laboratory experiment at CERN, researchers have observed individual atoms of antihydrogen fall under the effects of gravity. In confirming antimatter and regular matter are gravitationally attracted, the finding rules out gravitational repulsion as the reason why antimatter is largely missing from the observable universe. Wed, 27 Sep 2023 15:48:38 EDT //www.koonmotors.com/releases/2023/09/230927154838.htm //www.koonmotors.com/releases/2023/09/230925124831.htm Astronomers have found a striking link between the amount of dust surrounding a supermassive black hole and the strength of the radio emission produced in extremely bright galaxies. Mon, 25 Sep 2023 12:48:31 EDT //www.koonmotors.com/releases/2023/09/230925124831.htm //www.koonmotors.com/releases/2023/09/230922110809.htm With the launch of the James Webb Space Telescope, astronomers are now able to peer so far back in time that we are approaching the epoch where we think that the first galaxies were created. Throughout most of the history of the Universe, galaxies seemingly tend to follow a tight relation between how many stars they have formed, and how many heavy elements they have formed. But for the first time we now see signs that this relation between the amount of stars and elements does not hold for the earliest galaxies. The reason is likely that these galaxies simply are in the process of being created, and have not yet had the time to create the heavy elements. Fri, 22 Sep 2023 11:08:09 EDT //www.koonmotors.com/releases/2023/09/230922110809.htm //www.koonmotors.com/releases/2023/09/230922110758.htm Galaxies from the early Universe are more like our own Milky Way than previously thought, flipping the entire narrative of how scientists think about structure formation in the Universe, according to new research. Fri, 22 Sep 2023 11:07:58 EDT //www.koonmotors.com/releases/2023/09/230922110758.htm //www.koonmotors.com/releases/2023/09/230921154505.htm Newly developed ultra-low radiation cables reduce background noise for neutrino and dark matter detectors. Thu, 21 Sep 2023 15:45:05 EDT //www.koonmotors.com/releases/2023/09/230921154505.htm //www.koonmotors.com/releases/2023/09/230920111229.htm An international research team has used the James Webb Space Telescope and the Atacama Large Millimeter/submillimeter Array to observe the most distant galaxy protocluster to date, 13.14 billion light-years away. The team has successfully captured the 'core region' of the galaxy protocluster, which corresponds to a metropolitan area with a particularly high number density of galaxies. The team has revealed that many galaxies are concentrated in a small area and that the growth of galaxies is accelerated. Furthermore, the team used simulations to predict the future of the metropolitan area and found that the region will merge into one larger galaxy within tens of millions of years. These results are expected to provide important clues regarding the birth and growth of galaxies. Wed, 20 Sep 2023 11:12:29 EDT //www.koonmotors.com/releases/2023/09/230920111229.htm //www.koonmotors.com/releases/2023/09/230919155043.htm 生活在一个遥远的星球——如果这是might not look anything like life on Earth. But there are only so many chemical ingredients in the universe's pantry, and only so many ways to mix them. Scientists have now exploited those limitations to write a cookbook of hundreds of chemical recipes with the potential to give rise to life. Their ingredient list could focus the search for life elsewhere in the universe by pointing out the most likely conditions -- planetary versions of mixing techniques, oven temperatures and baking times -- for the recipes to come together. Tue, 19 Sep 2023 15:50:43 EDT //www.koonmotors.com/releases/2023/09/230919155043.htm //www.koonmotors.com/releases/2023/09/230915163319.htm Scientists have used data from the James Webb Space Telescope (JWST) as part of the Cosmic Evolution Early Release Science (CEERS) Survey to change the way we think about the universe and its distant galaxies. Astronomers authored a paper confirming very bright galaxies in the early universe, while also disproving the identification of what would have been the most distant galaxy ever found. Fri, 15 Sep 2023 16:33:19 EDT //www.koonmotors.com/releases/2023/09/230915163319.htm //www.koonmotors.com/releases/2023/09/230914114713.htm Lab-based studies reveal how carbon atoms diffuse on the surface of interstellar ice grains to form complex organic compounds, crucial to reveal the chemical complexity in the universe. Thu, 14 Sep 2023 11:47:13 EDT //www.koonmotors.com/releases/2023/09/230914114713.htm //www.koonmotors.com/releases/2023/09/230913122704.htm One of the most interesting and important questions in cosmology is, 'How much matter exists in the universe?' An international team has now succeeded in measuring the total amount of matter for the second time. The team determined that matter makes up 31% of the total amount of matter and energy in the universe, with the remainder consisting of dark energy. Wed, 13 Sep 2023 12:27:04 EDT //www.koonmotors.com/releases/2023/09/230913122704.htm //www.koonmotors.com/releases/2023/09/230913003300.htm These new detections suggest polar ring galaxies might be more common than previously believed. Wed, 13 Sep 2023 00:33:00 EDT //www.koonmotors.com/releases/2023/09/230913003300.htm //www.koonmotors.com/releases/2023/09/230912110158.htm At the center of every galaxy is a supermassive black hole. Beyond a certain size, these become active, emitting huge amounts of radiation, and are then called quasars. It is thought these are activated by the presence of massive dark matter halos (DMH) surrounding the galaxy, directing matter towards the center, feeding the black hole. A team has now surveyed hundreds of ancient quasars and found this behavior is very consistent throughout history. This is surprising, as many large-scale processes show variation throughout the life of the universe, so the mechanism of quasar activation could have implications for the evolution of the entire universe. Tue, 12 Sep 2023 11:01:58 EDT //www.koonmotors.com/releases/2023/09/230912110158.htm //www.koonmotors.com/releases/2023/09/230911141121.htm As the universe evolves, scientists expect large cosmic structures to grow at a certain rate: dense regions such as galaxy clusters would grow denser, while the void of space would grow emptier. Mon, 11 Sep 2023 14:11:21 EDT //www.koonmotors.com/releases/2023/09/230911141121.htm //www.koonmotors.com/releases/2023/09/230907105909.htm New research has revealed the distribution of dark matter in never before seen detail, down to a scale of 30,000 light-years. The observed distribution fluctuations provide better constraints on the nature of dark matter. Thu, 07 Sep 2023 10:59:09 EDT //www.koonmotors.com/releases/2023/09/230907105909.htm //www.koonmotors.com/releases/2023/09/230906112346.htm Astronomers have detected the magnetic field of a galaxy so far away that its light has taken more than 11 billion years to reach us: we see it as it was when the Universe was just 2.5 billion years old. The result provides astronomers with vital clues about how the magnetic fields of galaxies like our own Milky Way came to be. Wed, 06 Sep 2023 11:23:46 EDT //www.koonmotors.com/releases/2023/09/230906112346.htm //www.koonmotors.com/releases/2023/09/230905202510.htm The immense bubble is 820 million light years from Earth and believed to be a fossil-like remnant of the birth of the universe. Tue, 05 Sep 2023 20:25:10 EDT //www.koonmotors.com/releases/2023/09/230905202510.htm //www.koonmotors.com/releases/2023/08/230823165413.htm 研究人员做了一个discovery that could change our understanding of the universe. He reveals that there is a range in which fundamental constants can vary, allowing for the viscosity needed for life processes to occur within and between living cells. This is an important piece of the puzzle in determining where these constants come from and how they impact life as we know it. Wed, 23 Aug 2023 16:54:13 EDT //www.koonmotors.com/releases/2023/08/230823165413.htm //www.koonmotors.com/releases/2023/08/230821114341.htm New research has improved the accuracy of the parameters governing the expansion of the Universe. More accurate parameters will help astronomers determine how the Universe grew to its current state, and how it will evolve in the future. Mon, 21 Aug 2023 11:43:41 EDT //www.koonmotors.com/releases/2023/08/230821114341.htm //www.koonmotors.com/releases/2023/08/230817163841.htm Magnetars are the strongest magnets in the Universe. These super-dense dead stars with ultra-strong magnetic fields can be found all over our galaxy but astronomers don't know exactly how they form. Now, using multiple telescopes around the world, researchers have uncovered a living star that is likely to become a magnetar. This finding marks the discovery of a new type of astronomical object -- massive magnetic helium stars -- and sheds light on the origin of magnetars. Thu, 17 Aug 2023 16:38:41 EDT //www.koonmotors.com/releases/2023/08/230817163841.htm //www.koonmotors.com/releases/2023/08/230815151134.htm In a new study, researchers have taken an important step toward understanding how exploding stars can help reveal how neutrinos, mysterious subatomic particles, secretly interact with themselves. Tue, 15 Aug 2023 15:11:34 EDT //www.koonmotors.com/releases/2023/08/230815151134.htm //www.koonmotors.com/releases/2023/08/230809130728.htm 美国宇航局的詹姆斯韦伯太空望远镜已经跟进on observations by the Hubble Space Telescope of the farthest star ever detected in the very distant universe, within the first billion years after the big bang. Webb's NIRCam (Near-Infrared Camera) instrument reveals the star to be a massive B-type star more than twice as hot as our Sun, and about a million times more luminous. Wed, 09 Aug 2023 13:07:28 EDT //www.koonmotors.com/releases/2023/08/230809130728.htm //www.koonmotors.com/releases/2023/08/230802132033.htm A new image of the galaxy cluster known as 'El Gordo' is revealing distant and dusty objects never seen before, and providing a bounty of fresh science. The infrared image displays a variety of unusual, distorted background galaxies that were only hinted at in previous Hubble Space Telescope images. Wed, 02 Aug 2023 13:20:33 EDT //www.koonmotors.com/releases/2023/08/230802132033.htm //www.koonmotors.com/releases/2023/07/230731122305.htm Researchers offer insight into the source of cosmic magnetic fields. The research team used models to show that magnetic fields may spontaneously arise in turbulent plasma. Their simulations showed that, in addition to generating new magnetic fields, the turbulence of those plasmas can also amplify magnetic fields once they've been generated, which helps explain how magnetic fields that originate on small scales can sometimes eventually reach to stretch across vast distances. 星期一,2023年7月31日12:23:05美国东部时间 //www.koonmotors.com/releases/2023/07/230731122305.htm //www.koonmotors.com/releases/2023/07/230720124717.htm Researchers look at water in galaxies, its distribution and in particular its changes of state from ice to vapor, as important markers indicating areas of increased energy, in which black holes and stars are formed. A new study has now revealed the distribution of water within the J1135 galaxy, which is 12 billion light years away and formed when the Universe was a 'teenager', 1.8 billion years after the Big Bang . This water map, with unprecedented resolution, is the first ever to be obtained for such a remote galaxy. The map can help scientists to understand the physical processes taking place within J1135 and shed light on the dynamics, still partially unclear, surrounding the formation of stars, black holes and galaxies themselves. Thu, 20 Jul 2023 12:47:17 EDT //www.koonmotors.com/releases/2023/07/230720124717.htm //www.koonmotors.com/releases/2023/07/230719112630.htm New research has found the first evidence of a massive galaxy with no dark matter. The result is a challenge to the current standard model of cosmology. Wed, 19 Jul 2023 11:26:30 EDT //www.koonmotors.com/releases/2023/07/230719112630.htm //www.koonmotors.com/releases/2023/07/230717143208.htm A team has found that NASA's Juno spacecraft orbiting Jupiter frequently encounters giant swirling waves at the boundary between the solar wind and Jupiter's magnetosphere. The waves are an important process for transferring energy and mass from the solar wind, a stream of charged particles emitted by the Sun, to planetary space environments. Mon, 17 Jul 2023 14:32:08 EDT //www.koonmotors.com/releases/2023/07/230717143208.htm //www.koonmotors.com/releases/2023/07/230713192847.htm Three bright objects initially identified as galaxies in observations from the James Webb Space Telescope might actually represent an exotic new form of star. If confirmed, the discovery would also shed light on the nature of dark matter. Thu, 13 Jul 2023 19:28:47 EDT //www.koonmotors.com/releases/2023/07/230713192847.htm //www.koonmotors.com/releases/2023/07/230712124750.htm From our cosmic backyard in the solar system to distant galaxies near the dawn of time, NASA's James Webb Space Telescope has delivered on its promise of revealing the universe like never before in its first year of science operations. To celebrate the completion of a successful first year, NASA has released Webb's image of a small star-forming region in the Rho Ophiuchi cloud complex. Wed, 12 Jul 2023 12:47:50 EDT //www.koonmotors.com/releases/2023/07/230712124750.htm //www.koonmotors.com/releases/2023/07/230711133118.htm Our universe could be twice as old as current estimates, according to a new study that challenges the dominant cosmological model and sheds new light on the so-called 'impossible early galaxy problem.' Tue, 11 Jul 2023 13:31:18 EDT //www.koonmotors.com/releases/2023/07/230711133118.htm //www.koonmotors.com/releases/2023/07/230706124536.htm Researchers have discovered the most distant active supermassive black hole to date with the James Webb Space Telescope (JWST). The galaxy, CEERS 1019, existed about 570 million years after the big bang, and its black hole is less massive than any other yet identified in the early universe. Thu, 06 Jul 2023 12:45:36 EDT //www.koonmotors.com/releases/2023/07/230706124536.htm //www.koonmotors.com/releases/2023/07/230705143005.htm Researchers have made major strides in confirming the source of dust in early galaxies. Observations of two Type II supernovae, Supernova 2004et (SN 2004et) and Supernova 2017eaw (SN 2017eaw), have revealed large amounts of dust within the ejecta of each of these objects. The mass found by researchers supports the theory that supernovae played a key role in supplying dust to the early universe. Wed, 05 Jul 2023 14:30:05 EDT //www.koonmotors.com/releases/2023/07/230705143005.htm //www.koonmotors.com/releases/2023/07/230703133103.htm Quasars are the supermassive black holes at the centres of early galaxies. Scientists have unlocked their secrets to use them as 'clocks' to measure time near the beginning of the universe. Mon, 03 Jul 2023 13:31:03 EDT //www.koonmotors.com/releases/2023/07/230703133103.htm //www.koonmotors.com/releases/2023/07/230701135624.htm The universe is expanding; we've had evidence of that for about a century. But just how quickly celestial objects are receding from each other is still up for debate. Sat, 01 Jul 2023 13:56:24 EDT //www.koonmotors.com/releases/2023/07/230701135624.htm //www.koonmotors.com/releases/2023/06/230629193240.htm Scientists have revealed a uniquely different image of our galaxy by determining the galactic origin of thousands of neutrinos -- invisible 'ghost particles' which exist in great quantities but normally pass straight through Earth undetected. The neutrino-based image of the Milky Way is the first of its kind: a galactic portrait made with particles of matter rather than electromagnetic energy. Thu, 29 Jun 2023 19:32:40 EDT //www.koonmotors.com/releases/2023/06/230629193240.htm //www.koonmotors.com/releases/2023/06/230629173611.htm Galaxies are not scattered randomly across the universe. They gather together not only into clusters, but into vast interconnected filamentary structures with gigantic barren voids in between. This 'cosmic web' started out tenuous and became more distinct over time as gravity drew matter together. Thu, 29 Jun 2023 17:36:11 EDT //www.koonmotors.com/releases/2023/06/230629173611.htm //www.koonmotors.com/releases/2023/06/230629125650.htm 你不能看到或感觉到它,但你周围的一切u -- including your own body -- is slowly shrinking and expanding. It's the weird, spacetime-warping effect of gravitational waves passing through our galaxy. New results are the first evidence of the gravitational wave background -- a sort of soup of spacetime distortions pervading the entire universe and long predicted to exist by scientists. Thu, 29 Jun 2023 12:56:50 EDT //www.koonmotors.com/releases/2023/06/230629125650.htm //www.koonmotors.com/releases/2023/06/230628125125.htm For the first time, the James Webb Space Telescope has revealed starlight from two massive galaxies hosting actively growing black holes -- quasars -- seen less than a billion years after the Big Bang. Wed, 28 Jun 2023 12:51:25 EDT //www.koonmotors.com/releases/2023/06/230628125125.htm //www.koonmotors.com/releases/2023/06/230622120924.htm The cosmos is a unique laboratory for testing the laws of physics, in particular those of Euler and Einstein. Euler described the movements of celestial objects, while Einstein described the way in which celestial objects distort the Universe. Since the discovery of dark matter and the acceleration of the Universe's expansion, the validity of their equations has been put to the test: are they capable of explaining these mysterious phenomena? A team has developed the first method to find out. It considers a never-before-used measure: time distortion. Thu, 22 Jun 2023 12:09:24 EDT //www.koonmotors.com/releases/2023/06/230622120924.htm //www.koonmotors.com/releases/2023/06/230622120817.htm Astronomers studying a powerful gamma-ray burst, may have detected a never-before-seen way to destroy a star. Unlike most GRBs, which are caused by exploding massive stars or the chance mergers of neutron stars, astronomers have concluded that this GRB came instead from the collision of stars or stellar remnants in the jam-packed environment surrounding a supermassive black hole at the core of an ancient galaxy. Thu, 22 Jun 2023 12:08:17 EDT //www.koonmotors.com/releases/2023/06/230622120817.htm //www.koonmotors.com/releases/2023/06/230614220651.htm Researchers reveal a theoretical breakthrough that may explain both the nature of invisible dark matter and the large-scale structure of the universe known as the cosmic web. The result establishes a new link between these two longstanding problems in astronomy, opening new possibilities for understanding the cosmos. The research suggests that the 'clumpiness problem,' which centres on the unexpectedly even distribution of matter on large scales throughout the cosmos, may be a sign that dark matter is composed of hypothetical, ultra-light particles called axions. The implications of proving the existence of hard-to-detect axions extend beyond understanding dark matter and could address fundamental questions about the nature of the universe itself. Wed, 14 Jun 2023 22:06:51 EDT //www.koonmotors.com/releases/2023/06/230614220651.htm //www.koonmotors.com/releases/2023/06/230613110102.htm The first batch of data from the Dark Energy Spectroscopic Instrument is now available for researchers to explore. Taken during the experiment's 'survey validation' phase, the data include distant galaxies and quasars as well as stars in our own Milky Way. Tue, 13 Jun 2023 11:01:02 EDT //www.koonmotors.com/releases/2023/06/230613110102.htm //www.koonmotors.com/releases/2023/06/230612114635.htm An international team of scientists recently discovered an exceptionally rare gravitationally lensed supernova, which the team named 'SN Zwicky.' Located more than 4 billion light years away, the supernova was magnified nearly 25 times by a foreground galaxy acting as a lens. The discovery presents a unique opportunity for astronomers to learn more about the inner cores of galaxies, dark matter and the mechanics behind universe expansion. Mon, 12 Jun 2023 11:46:35 EDT //www.koonmotors.com/releases/2023/06/230612114635.htm //www.koonmotors.com/releases/2023/06/230605181233.htm Researchers have detected complex organic molecules in a galaxy more than 12 billion light-years away from Earth -- the most distant galaxy in which these molecules are now known to exist. Thanks to the capabilities of the recently launched James Webb Space Telescope and careful analyses from the research team, a new study lends critical insight into the complex chemical interactions that occur in the first galaxies in the early universe. Mon, 05 Jun 2023 18:12:33 EDT //www.koonmotors.com/releases/2023/06/230605181233.htm //www.koonmotors.com/releases/2023/06/230605181111.htm Among the most fundamental questions in astronomy is: How did the first stars and galaxies form? NASA's James Webb Space Telescope is already providing new insights into this question. One of the largest programs in Webb's first year of science is the JWST Advanced Deep Extragalactic Survey, or JADES, which will devote about 32 days of telescope time to uncover and characterize faint, distant galaxies. While the data is still coming in, JADES already has discovered hundreds of galaxies that existed when the universe was less than 600 million years old. The team also has identified galaxies sparkling with a multitude of young, hot stars. Mon, 05 Jun 2023 18:11:11 EDT //www.koonmotors.com/releases/2023/06/230605181111.htm //www.koonmotors.com/releases/2023/06/230603220820.htm Scientists have managed to weigh -- more precisely than any other technique -- a galaxy hosting a quasar, thanks to the fact that it acts as a gravitational lens. Detection of strong gravitational lensing quasars is expected to multiply with the launch of Euclid this summer. Sat, 03 Jun 2023 22:08:20 EDT //www.koonmotors.com/releases/2023/06/230603220820.htm //www.koonmotors.com/releases/2023/06/230602115051.htm New theoretical research has shown that Stephen Hawking was likely right about black holes, although not completely. Due to Hawking radiation, black holes will eventually evaporate, but the event horizon is not as crucial as had been believed. Gravity and the curvature of spacetime cause this radiation too. This means that all large objects in the universe, like the remnants of stars, will eventually evaporate. Fri, 02 Jun 2023 11:50:51 EDT //www.koonmotors.com/releases/2023/06/230602115051.htm //www.koonmotors.com/releases/2023/06/230601155742.htm After the Big Bang, the universe expanded and cooled sufficiently for hydrogen atoms to form. In the absence of light from the first stars and galaxies, the universe entered a period known as the cosmic dark ages. The first stars and galaxies appeared several hundred million years later and began burning away the hydrogen fog left over from the Big Bang, rendering the universe transparent, like it is today. Researchers have now confirmed the existence of a distant, faint galaxy typical of those whose light burned through the hydrogen atoms; the finding should help them understand how the cosmic dark ages ended. Thu, 01 Jun 2023 15:57:42 EDT //www.koonmotors.com/releases/2023/06/230601155742.htm //www.koonmotors.com/releases/2023/05/230529171520.htm 黑洞喷射已知发射x射线,但如何they accelerate particles to this high-energy state is still a mystery. Surprising new findings appear to rule out a leading theory, opening the door to reimagining how particle acceleration works. One model of how jets generate x-rays expects the jets' x-ray emissions to remain stable over long time scales. However, the new paper found that the x-ray emissions of a statistically significant number of jets varied over just a few years. Mon, 29 May 2023 17:15:20 EDT //www.koonmotors.com/releases/2023/05/230529171520.htm //www.koonmotors.com/releases/2023/05/230525141326.htm The latest observations from Low Earth Orbit with the International Space Station provide further evidence of spectral hardening and softening of cosmic ray particles. Thu, 25 May 2023 14:13:26 EDT //www.koonmotors.com/releases/2023/05/230525141326.htm //www.koonmotors.com/releases/2023/05/230519104549.htm Researchers have observed the X-ray emission of the most luminous quasar seen in the last 9 billion years of cosmic history, known as SMSS J114447.77-430859.3, or J1144 for short. The new perspective sheds light on the inner workings of quasars and how they interact with their environment. Fri, 19 May 2023 10:45:49 EDT //www.koonmotors.com/releases/2023/05/230519104549.htm //www.koonmotors.com/releases/2023/05/230517122109.htm Astronomers reveal the origin of a thermonuclear supernova explosion. Strong emission lines of helium and the first detection of such a supernova in radio waves show that the exploding white dwarf star had a helium-rich companion. Wed, 17 May 2023 12:21:09 EDT //www.koonmotors.com/releases/2023/05/230517122109.htm //www.koonmotors.com/releases/2023/05/230512110231.htm Astronomers have uncovered the largest cosmic explosion ever witnessed. The explosion is more than ten times brighter than any known supernova and three times brighter than the brightest tidal disruption event, where a star falls into a supermassive black hole. Fri, 12 May 2023 11:02:31 EDT //www.koonmotors.com/releases/2023/05/230512110231.htm //www.koonmotors.com/releases/2023/05/230511164623.htm Researchers have discovered a new generic production mechanism of gravitational waves generated by a phenomenon known as oscillons. Thu, 11 May 2023 16:46:23 EDT //www.koonmotors.com/releases/2023/05/230511164623.htm //www.koonmotors.com/releases/2023/05/230511164613.htm 天文学家已经发现超大质量的假日es obscured by dust are more likely to grow and release tremendous amounts of energy when they are inside galaxies that are expected to collide with a neighbouring galaxy. Thu, 11 May 2023 16:46:13 EDT //www.koonmotors.com/releases/2023/05/230511164613.htm //www.koonmotors.com/releases/2023/05/230511164559.htm Globular clusters are the most massive and oldest star clusters in the Universe. They can contain up to 1 million of them. The chemical composition of these stars, born at the same time, shows anomalies that are not found in any other population of stars. Explaining this specificity is one of the great challenges of astronomy. After having imagined that supermassive stars could be at the origin, a team believes it has discovered the first chemical trace attesting to their presence in globular proto-clusters, born about 440 million years after the Big Bang. Thu, 11 May 2023 16:45:59 EDT //www.koonmotors.com/releases/2023/05/230511164559.htm