Articles tagged with Universe
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.
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.
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.
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.
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
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 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 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.
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.
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 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 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 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.
The Large Synoptic Survey Telescope (LSST) will survey the entire Southern Hemisphere's sky, collecting 30 terabytes of data nightly. The telescope aims to map 20 billion galaxies and observe supernovae, offering stringent tests on dark matter and dark energy.
Using supercomputer simulations, astronomers observed a flash of light caused by a supernova slamming into a nearby star, determining the stellar system from which it was born. This finding confirms one of two competing theories about the birth of Type Ia supernovae and suggests two distinct populations of these objects.
Two Large Hadron Collider experiments have combined their results to observe a previously unseen subatomic process, establishing a new and extremely rare decay of the Bs particle into two muons. This discovery helps scientists study the properties of particles to search for cracks in the Standard Model, potentially revealing new physics.
Researchers at TU Wien found that the holographic principle can hold true even in flat spacetime, confirming its validity in our own universe. This validation suggests that the universe may be a hologram, with three-dimensional space being an image of two-dimensional processes on a cosmic horizon.
Researchers discovered a massive supervoid, 1.8 billion light-years across, that could explain the unusual Cold Spot in cosmic microwave background radiation. The void's effect on light traveling through it results in colder temperatures, potentially revealing exotic physics beyond standard cosmology.
Astronomers observed 22 massive elliptical galaxies using the VLT and Hubble Space Telescope, revealing that star formation in their centers stopped around three billion years ago. The newly discovered inside-out nature of this shutdown may be due to a galaxy's central supermassive black hole or lack of fresh gas.
Researchers at the South Pole have discovered 35 high-energy neutrinos originating from distant regions of space, offering insights into the universe's most abundant particles. The IceCube detector has analyzed 5,200 interactions between atmospheric neutrinos and ice atoms, confirming quantum fluctuations that change neutrino types.
A team of students and professors is launching rockets to develop technologies that can detect the missing normal matter in space. The project aims to confirm current models of the universe by observing the absorption caused by the intergalactic medium.
Researchers at MIT and Michigan State University have developed a theory explaining how galaxy clusters regulate star formation. The study found that hot intracluster gas cools rapidly, condenses, and collapses to form new stars, but also triggers conduction and precipitation-driven feedback, which prevent excessive star birth.
Researchers suggest the Higgs field's motion may have created a temporary imbalance between particles and antiparticles, resulting in a small excess of matter. This asymmetry is believed to be responsible for the formation of stars and planets, making up most of the universe.
Scientists discuss alternative chemistries of life, exploring possibilities beyond Earth, at the AAAS 2015 Panel. Researchers aim to unravel complex interplay of planetary and biological evolutionary networks.
Researchers designed an X-ray polarimeter, X-Calibur, to study high-energy processes near black holes. The instrument measures X-ray polarization properties to study extreme objects in the Universe.
Recent developments in science suggest universes naturally produce complexity, leading to rational life and moral culture. Kelly Smith's work proposes a universal basis for morality, potentially establishing common ground with extraterrestrial life forms.
A new study by Professor Ulf-G Meißner finds that fundamental physics constants are fine-tuned to allow for the emergence of a life-enabling universe. The researcher used high-performance computers to simulate worlds with altered light quark masses and found that variations up to 2-3% do not prevent the formation of carbon and oxygen.
Researchers at Kavli IPMU revealed that considering environmental effects is crucial for explaining dark matter halo distribution and evolution around galaxies. They confirmed the importance of higher-order nonlocal terms in simulations, allowing for more accurate predictions of dark matter halos' distribution.
The new images show the pillars as eerie, wispy silhouettes against a background of stars, with newborn stars hidden within. The infrared view reveals dense knots of dust and gas at the pillar's ends, underscoring the dynamic and violent nature of star-forming regions.