Articles tagged with Universe
Researchers detected gas containing oxygen in a galaxy 13.1 billion light years away, providing insight into ancient times. The discovery helps scientists understand the universe's reionization and the nature of its first stars.
The detection confirms the existence of binary black holes with a range of masses, forming from different stars. The event provides valuable data on gravitational waves and the nature of gravity, shedding light on the universe's most violent cosmic events.
A Johns Hopkins team proposes a solution to the dark matter mystery by suggesting that black hole binaries detected by LIGO may be a signature of primordial black holes. The team's calculations match the predicted mass range for these mysterious objects, making them a plausible candidate for dark matter.
Astronomers using OISTER telescope consortium in Japan have discovered the origin of 'extraordinary supernovae', which are brighter than normal ones. The 'accretion' scenario supports the discovery, where material ejected from a white dwarf is responsible for the emission.
A team of researchers has created a 3D map of 3000 galaxies 13 billion light years away, finding that Einstein's general theory of relativity is still accurate. The study suggests the expansion of the universe could be explained by a cosmological constant.
Researchers found that hot dust in the distant universe is often caused by three or four galaxies instead of a single one. This study applied statistical methods to data from the Herschel Space Observatory and dropped the number of stars these galaxies have to be producing by a third.
A research team at Stockholm University used NASA's Fermi satellite to study light from the Perseus galaxy cluster, finding no traces of axion-like particles. The observations excluded certain types of ALPs that could explain a small amount of dark matter, advancing sensitivity for future experiments.
Scientists found that magnetars could boost the energy source of super-luminous supernovae, which are 10-100 times brighter than normal supernovae. Calculations suggest that rapidly spinning magnetars could power these extreme events.
A team of astronomers has found evidence that quasars' energy feedback may have slowed down star formation in the universe about 11 billion years ago. The study used data from multiple telescopes to detect the Sunyaev-Zel'dovich Effect, a phenomenon caused by high-energy electrons disturbing the Cosmic Microwave Background.
A research team using ALMA detected the faintest millimeter-wave source ever observed and found that they are responsible for 100% of the enigmatic infrared background light. 60% of these objects are faint galaxies, while the rest remain unknown.
A team of astronomers has found evidence of repeated fast radio bursts (FRBs) originating from the same location in the sky, contradicting the long-held assumption that these bursts are isolated events. This discovery rules out entire classes of theoretical models and suggests that the burst source can recharge in minutes.
Researchers propose that a universe with diverse body sizes reduces gravitational tension faster due to the natural tendency of systems to evolve toward reduced tension. This phenomenon is a manifestation of the Constructal Law, which states that natural systems facilitate flow.
A team of scientists identified a fast radio burst and pinpointed its location, confirming the current cosmological model of the universe's distribution of matter. The discovery measured the density of material between the FRB source and Earth, allowing for a more accurate understanding of the universe's composition.
A team of scientists has confirmed that a 'fast radio burst' originates in the distant universe, using CSIRO radio telescopes and the National Astronomical Observatory's Subaru telescope. The breakthrough allows researchers to weigh the normal matter in the universe, confirming the presence of missing ordinary matter.
The Wide Field Infrared Survey Telescope (WFIRST) will aid researchers in unraveling the secrets of the universe by studying dark energy and dark matter. The observatory will discover new worlds outside our solar system and advance the search for life-suitable planets.
Researchers simulated a thin ring-shaped black hole in five dimensions, which breaks down Einstein's general theory of relativity if it exists outside an event horizon. The simulation revealed the formation of a 'naked singularity', causing laws of physics to break down and potentially rendering general relativity ineffective.
Recent improvements in experiments like Large Underground Xenon have increased the chances of detecting WIMPs, believed to be the main component of dark matter. Dark matter scientists are on the brink of a discovery that could fundamentally change our understanding of the physical universe.
The final primary mirror segment was installed on the telescope structure using a robotic arm, completing a decade-long design and manufacturing process. Once deployed, the 18 segments will form a single large 21.3-foot diameter mirror to study planetary atmospheres, star-forming regions, and the universe's beginnings.
Two studies find gamma ray signals in the galactic center are unlikely caused by dark matter collisions. Instead, they could be attributed to fast-rotating stars called millisecond pulsars. Researchers used statistical analysis methods to analyze images of gamma rays captured by NASA's Fermi Gamma-ray Space Telescope.
Physicists have made a groundbreaking discovery in the field of dark matter research. The CRESST-II detector has achieved unprecedented sensitivity levels, allowing scientists to detect even the lightest dark matter particles for the first time.
Researchers have developed a new quantum approach to analyze connections in complex networks, such as brain wiring and the global internet, using topological systems. This method can exponentially speed up calculations compared to conventional computers.
Astronomers have discovered a highly turbulent galaxy that may soon lose its supply of star-forming gas due to violent motion. The galaxy, W2246-0526, is an obscured quasar with a supermassive black hole at its center, causing intense radiation that exerts pressure on the entire galaxy.
Researchers used ALMA to study W2246-0526, the most luminous galaxy known, finding it's ejecting its star-forming gas due to intense infrared radiation. This turbulence could lead to the galaxy evolving into a traditional quasar.
NASA's Hubble Space Telescope has photographed a newborn star with twin jets, reminiscent of a Star Wars lightsaber, in the Orion B molecular cloud complex. The protostar is feeding on surrounding material and shooting gas into space, creating shock fronts that heat up the surrounding gas.
The VERITAS telescope detected powerful gamma rays from a distant galaxy, PKS 1441+25, revealing details about the black hole engine at its center. The gamma-ray emission was found to be located within the relativistic jet, but surprisingly far from the black hole, and is estimated to be around 5 light-years away.
Astronomers discovered nine monstrous baby galaxies 11.5 billion light-years away, pinpointed by ALMA's high resolution. These young galaxies reside at the intersection of massive filaments in dark matter, supporting a model for their formation.
Researchers analyzed 700 hours of archival data to discover a burst of radio waves from six billion light years away. The region of space it came from was highly magnetized, suggesting it could be related to a supernova or nebula forming new stars.
A team of international researchers employed powerful computer simulations to study the creation of jets in dying stars. Their work sheds light on an explosive chain reaction that helps form the structure of the universe. The simulations revealed a highly turbulent place, where magnetorotational instability drives the formation of jets.
A new type-II Weyl fermion has been predicted to exist in metallic materials, exhibiting unique responses to electromagnetic fields. The discovery could lead to potential applications in low-energy devices and efficient transistors.
A team of physicists has made a groundbreaking calculation on the decay of subatomic particles called kaons, which could change how scientists understand the formation of the universe. The research finds that the behavior of kaons differs when matter is swapped out for antimatter, challenging current understanding of the Standard Model.
Researchers have discovered thousands of stellar pulses in the galaxy Messier 87 (M87), providing a new method for calculating a galaxy's age. The pulsations are caused by bright, pulsating stars that were previously unknown to affect distant galaxies' light.
A doctoral student at the University of Kansas has been awarded a yearlong Fermilab Graduate Student Fellowship in Theoretical Physics to work on dark matter research. He aims to investigate the universe's deepest riddles, including its place in the cosmos and the history of human existence.
Physicist Sampa Bhadra's T2K team made a groundbreaking discovery of neutrino oscillations, revealing a new frontier in particle physics. The team's measurement of the last unknown quantity dictating rules for oscillations has shed light on the universe's origins.
Physicists at PPPL found a clue to forming large-scale magnetic fields by analyzing small magnetic disturbances that combine under certain conditions. Small velocity shear creates the necessary environment for these disturbances to form one large disturbance, which can persist over billions of years.
A Chinese research team led by Prof. Qing-Guo Huang accurately determined the Hubble constant using Baryon Acoustic Oscillation datasets, achieving a precision of around 1.3%. This result questions the measurement accuracy of Nobel laureate Adam Riess' team.
Researchers have run the largest cosmological simulation to date, modeling the universe's evolution from 50 million years after the Big Bang to the present day. The Q Continuum simulation provides new insights into dark energy and galaxy formation, with data analysis ongoing for several years.
A new survey using Japan's Suzaku X-ray satellite reveals that the elements necessary for stars, planets, and people were evenly distributed across the Virgo galaxy cluster at a scale of millions of light-years. This discovery suggests that the chemical makeup of the universe is well mixed, with little variation on the largest scales.
A Pew Research Center survey found that people's perceptions of a conflict between religion and science are influenced by their views on other people's beliefs, rather than their own. Most Americans believe science and religion are mostly compatible, with 30% saying their personal beliefs conflict with science.
A new hydrodynamical simulation of the universe's visible structure, Magneticum Pathfinder, provides unparalleled insights into the cosmic landscape. The simulation covers a vast area of 12.5 billion light years, featuring unprecedented resolution and detail.
The Delft experiment disproves Einstein's local realism principle by entangling electrons across 1.3 km, measuring their orientations individually and agreeing well. The rapid random number generation used in the experiment closes a loophole, proving that God may indeed play 'dice' with the universe
The researchers calculated the new measurement for a critical characteristic -- mass -- of the top quark, opening the door to better understanding some of the deepest mysteries of our universe. The newly calculated measurement will help guide physicists in formulating new theories about quantum interactions and the nature of matter.
A team of researchers used an online classification system, Space Warps, to identify 29 new gravitational lens candidates. The citizen scientists analyzed 430,000 images and helped the researchers uncover potential lenses that algorithms may have missed.
A new study suggests that the universe was 'cooked' at just the right speeds to generate a rich and complex structure. The findings contradict the widespread belief that faster quantum phase transitions generate more structure.
The DESI Collaboration, led by the U.S. Department of Energy, has achieved a major milestone in its dark energy research project. Using the Dark Energy Spectroscopic Instrument, DESI will measure the redshifts of over 30 million galaxies and quasars with unprecedented precision.
UBC researchers propose a new way to calculate cosmological distances using fast radio bursts, allowing the positioning of distant galaxies in three dimensions and mapping out the cosmos. The method uses the delay between arrival times of different frequencies to create a catalogue of galaxies.
Researchers found a distant galaxy cluster producing over 800 solar masses of new stars annually, significantly higher than our Milky Way. The discovery reveals a rare 'wet merger' event where a gas-rich spiral galaxy collides with the massive cluster's central galaxy.
The deployable tower assembly (DTA) is a crucial component of the James Webb Space Telescope, enabling its instruments to be separated from the spacecraft bus and sunshield after launch. This allows the sunshield to unfurl and shade the telescope and instruments from radiant heat and stray light.
Researchers at the Large Hadron Collider investigate the properties of particles and their antiparticles to understand the universe's matter-antimatter asymmetry. The ALICE experiment confirms the CPT theorem with the most accurate measurements to date.
Researchers have observed a massive transformation in galaxy structure, with disc-shaped galaxies becoming oval-shaped galaxies. The study provides the first direct evidence of this 'metamorphosis' and sheds light on the processes that caused it.
Researchers from the XENON Collaboration report on a search for dark matter using an underground detector in Italy. The results set limits on several types of dark matter candidates and provide new insights into the nature of dark energy.
Researchers measured energy generated within space more precisely than ever before, discovering the Universe is slowly dying. The Galaxy and Mass Assembly project used seven powerful telescopes to observe 200,000 galaxies at 21 wavelengths.
Astronomers have detected a self-regulating cycle of star births within elliptical galaxies, with black holes controlling the rate of gas cooling and star formation. The unique capabilities of space telescopes like Hubble allowed researchers to directly observe 'showers' of star formation linked to galaxy jets.
A new stellar model developed by researchers at SISSA reveals that cosmological 'lost' lithium in metal-poor stars was not destroyed, but rather accreted from the surrounding environment. The model, which agrees with observations, provides a plausible explanation for the low abundance of lithium-7 in ancient stars.
Researchers have discovered a unique binary star system, Gaia14aae, where one star eclipses the other. The system is an important laboratory for studying ultra-bright supernova explosions, which help measure the expansion of the Universe.
Researchers developed a new map of dark matter distribution using DES data, providing valuable tool for cosmology to answer questions about dark energy and dark matter. The mass map allows scientists to check their work and verify the relationship between galaxy distribution and dark matter density.
Astronomers detected high-energy x-rays from five previously clouded supermassive black holes, supporting the theory of millions more existing but hidden from view. The research uses NuSTAR to study nine candidate black holes, confirming five were obscured by dust and gas.
A new study using high-resolution simulations suggests that there are far fewer faint galaxies than previously thought. The Renaissance Simulations, conducted on the Blue Waters supercomputer, show hundreds of well-resolved galaxies and provide novel predictions for the James Webb Space Telescope.
A new mathematical formulation of cosmic viscosity bridges the gap between thermodynamics and Einstein's general theory of relativity, favoring the 'Big Rip' scenario. The model also sheds light on dark energy, suggesting it may account for the universe's accelerating expansion.
A collaborative project between Caltech and the Weizmann Institute of Science observed a unique radiation spike in ultraviolet range, supporting a giant companion model for white dwarf explosions. The findings highlight the importance of ultraviolet-range observations in understanding type Ia supernovae.
A team of European scientists has discovered a unique region of extreme star formation, known as the 'Eye of Medusa', using the powerful NOEMA radio telescope. The discovery reveals a giant region of recently formed massive stars at the center of the galaxy collision.