Articles tagged with Universe
A new study detects ultra-high-energy neutrinos using radar echoes, a potential breakthrough in studying these elusive particles. Researchers at Ohio State University created an experiment that uses radio waves to detect the cascades of charged particles left by neutrino collisions.
Scientists at the University of Sussex have measured a neutron property more precisely than ever before, finding it smaller than predicted by some theories about matter in the universe. This discovery helps rule out these theories and pushes the limit on measuring the electric dipole moment of the neutron.
Theoretical physicists calculate the birth of baby universes 46 times, showing a link between gravity and soliton. The study uses the JT gravity model to demonstrate the unification of quantum mechanics and gravity.
Emerging technologies are opening a new era in SETI research, with innovative approaches expanding beyond traditional radio signal searches. New systems will detect technosignatures, such as laser emissions or atmospheric chemicals, indicating the presence of extraterrestrial technologies.
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 use NASA's Great Observatories to create a three-dimensional representation of the dynamic Crab Nebula, an exploding star. The visualization highlights the pulsar at the heart of the nebula and its intricate structures.
The IKBFU scientists proposed a new theory suggesting that the 'Dark Energy' is not a mysterious entity but rather a manifestation of the universe's boundaries. They draw an analogy with the Earth, where we experience attraction due to gravity but also have no physical boundaries.
A new image of the Milky Way's center captures a colorful composite of giant molecular clouds, with details on radio filaments and star factories. Scientists use GISMO data to observe microwaves at large scales, making detailed observations for the first time.
Researchers at Harvard University have achieved the coldest chemical reaction in history, slowing down molecules to capture the critical act of bond formation. By utilizing ultracold temperatures, they observed the intermediate stage of the reaction for microseconds, enabling direct measurement and validation of theories.
Researchers analyzed data from the Murchison Widefield Array radio telescope to set a new limit for the strength of neutral hydrogen's ultra-faint signature. The analysis may reveal critical information about the first stars and galaxies in the universe.
Scientists have detected gamma-rays from two gamma-ray bursts with ground-based telescopes, producing energies up to 100 billion times that of visible light. The observations provide insights into the gigantic explosions and their physical mechanisms.
Artyom Yurov's research suggests the Universe may have quantum properties due to decoherence theory. The phenomenon states objects exist in multiple places until interacting with their environment, causing 'collapse'. This theory challenges traditional understanding of large-scale quantum effects.
The Hubble Space Telescope reveals a remote galaxy split into multiple images by gravitational lensing, allowing astronomers to study its structure and environment. The Sunburst Arc, 11 billion light-years away, resembles galaxies from an earlier time in the universe's history.
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.
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.
A new measurement of the Hubble constant has been made using light from extremely distant galaxies, estimating a value of 76.8 kilometers per second per megaparsec. The result is comparable to previous estimates but differs significantly from other methods, sparking debate about potential new physics beyond our current understanding.
Researchers used supercomputer simulations to study magnetic reconnection, a process that releases kinetic energy in the universe. The simulations revealed a previously unknown role for the Biermann battery effect, which impacts magnetic reconnection in unexpected ways.
A German-British team used computer simulations to demonstrate how the merger of two stars creates strong magnetic fields. This process could result in the formation of magnetars, which are thought to have the strongest magnetic fields in the universe.
The EXO-200 collaboration has established some of the strongest limits yet for neutrinoless double beta decay and two-neutrino double beta decay of xenon-136. This research sets the stage for future experiments that will search for the hypothetical process, which would confirm that neutrinos are their own antiparticles.
Researchers used machine learning algorithms to analyze dark matter maps, achieving 30% more accurate results than traditional methods. The AI was trained on simulated data and applied to actual KiDS-450 dataset, showing promising potential for future cosmological applications.
A team at OIST Graduate University reports a new approach to quantum gravity using a model that more closely matches our reality, including accelerating expansion. The free S-matrix predicts interactions between particles in de Sitter space, which may help explain realistic scenarios.
New research by astrophysicists at the University of Kent reveals how matter discarded as stars die is recycled to form new stars and planets. The study found that elements such as carbon and oxygen are transferred through a process of fragmentation, providing vital clues about the emergence of life in our universe.
The KATRIN experiment has narrowed the estimated mass range of the elusive neutrino to 1 electron volt (eV), cutting it in half from a previous upper limit of 2 eV. This breakthrough allows scientists to answer fundamental questions about the universe's evolution and physics beyond the Standard Model.
Researchers have detected a 10-fold improvement in data gathered by the Murchison Widefield Array, bringing them closer to understanding the life and death of the earliest stars. The signal is more than 12 billion years old and was refined using new techniques to exclude sources of contamination.
Physicist Lucas Lombriser proposes a new mathematical manipulation of general relativity equations to harmonize theory and observation on the cosmological constant. Theoretical value is 0.704%, close to the best experimental estimate, resolving a 10121-year discrepancy.
The Harvard Museum of Natural History showcases an original lunar rock sample collected by Astronaut Alan L. Bean during the Apollo 12 mission, providing insights into the Moon's geology and formation. The exhibit highlights the importance of lunar samples in understanding the origins of our solar system.
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.
A new study has developed a method to measure the cosmic expansion with greater precision, utilizing galaxy voids and accounting for distortions caused by dark energy and curvature. The results agree with the simplest model of a flat universe and tighten constraints on alternative theories.
A team of astronomers has discovered a pair of titanic supermassive black holes on a collision course, which will soon emit powerful gravitational waves dwarfing those from smaller black hole mergers. The discovery can aid in estimating the number of nearby supermassive black holes emitting detectable gravitational waves.
Researchers pin down Hubble constant value between 65.3 and 75.6 km/s/Mpc using gravitational wave signals and radio images. This method relies on a single merger event, which is remarkable given the cosmological models' limitations.
Researchers at Durham University used supercomputer simulations to test Chameleon Theory, an alternative model for gravity. The findings suggest that galaxies like the Milky Way can form even with different laws of gravity, providing a new perspective on galaxy formation and dark energy.
Astronomers have developed a new method to measure the expansion of the Universe by analyzing neutron star mergers and gravitational waves. This technique uses the orientation of the gravitational wave signal to determine the distance, providing a new 'cosmic ruler' for measuring the Hubble Constant.
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 new AI model, D3M, generates complex 3D simulations of the universe in milliseconds, achieving accuracy comparable to high-accuracy models. The breakthrough enables researchers to explore various cosmic scenarios without sacrificing accuracy.
Cornell researchers develop algorithm to visualize models of the universe, unlocking secrets of cosmology and dark matter. The algorithm uses intensive principal component analysis to extract patterns from large datasets, providing new insights into the nature of our universe.
An international team of astronomers has captured the first-ever polarized radio waves from a distant cosmic explosion, known as gamma-ray burst GRB 190114C. The discovery provides new insights into how jets are formed in gamma-ray bursts and could shed light on the role of magnetic fields in powering these energetic events.
Scientists have detected the first polarized radio waves from a gamma ray burst jet, revealing that magnetic fields are more patchy and tangled than previously thought. The discovery was made possible by advanced radio telescopes and allows researchers to test theories about the structure of magnetic fields within jets.
The Five-hundred-meter Aperture Spherical radio Telescope (FAST) has enabled groundbreaking discoveries in pulsar and neutral hydrogen observations. With its ultra-wideband capabilities, FAST allows for the study of rotating radio transients in greater detail than ever before.
The 2019 APS April Meeting features talks on Event Horizon Telescope project's first results, nucleosynthesis in neutron star mergers, and the proposed AMEGO mission. These discoveries shed light on black holes, dark matter, and the universe's evolution.
Scientists from HSE and Yandex collaborate on LHCb experiment, discovering CP violation in charm meson decays with statistical significance of 5.3 standard deviations. AI tools improve data selection and analysis, enabling correct interpretation of physical results.
The ABRACADABRA experiment, led by MIT physicists, detected no evidence of axions within a specific mass range. The team reported that axions in this mass range do not exist or have an even smaller effect on electricity and magnetism than previously thought.
Tomasz Skwarnicki and his team have analyzed data from the Large Hadron Collider beauty experiment at CERN, discovering three never-before-seen pentaquarks. The findings suggest that pentaquarks are built in a similar way to protons and neutrons, potentially affecting models of matter in other parts of the universe.
Astronomers have uncovered one of the oldest star clusters in the Milky Way Galaxy using high-resolution adaptive optics imaging from the Gemini Observatory. The study reveals that the cluster is approximately 12.8 billion years old and provides new insights into galaxy formation.
Researchers employed high-speed lasers to study the mechanisms of H3+ creation and its unusual chemistry. They discovered six potential pathways for H3+ formation and found that certain laser pulses enhance or discourage formation.
A new platform called Riverbed ensures that web services adhere to users' preferences on how their data are stored and shared in the cloud. Users can select predefined restrictions on data storage and sharing, and the platform monitors server-side code to ensure compliance.
Astronomers have discovered evidence of a gigantic remnant surrounding an exploding star, indicating that it erupts regularly on a massive scale for millions of years. The team found a super-remnant measuring almost 400 light years across, which is unusually large compared to other known nova systems.
Measurements of gravitational waves from binary neutron stars will definitively resolve the debate on the universe's expansion rate. By observing 50 binary neutron stars over the next decade, scientists can calculate the Hubble constant accurately, resolving the conflict between conflicting measurements.
Researchers suggest that dark matter consists of axions, pseudo-Goldstone bosons capable of interacting with photons. The discovery could help identify the particles comprising dark matter and shed light on the nature of this mysterious component.
Researchers reveal how stars contribute to the creation of elements, from hydrogen to heavier elements like lawrencium. The study highlights the dynamic nature of the periodic table, which has grown as new elements have been discovered or created in laboratories.
A recent study using high-precision polarization measurements of five gamma-ray bursts has found that GRBs oscillate in the same direction within short time slices, with the oscillation direction changing over time. The results challenge previous theoretical models and provide new insights into the physics of GRB prompt emissions.
Researchers propose a new structural concept for the Universe, including dark energy, which rides on an expanding bubble in an additional dimension. This model may solve the enigma of dark energy and provide insight into the creation and future fate of the Universe.
Astrophysicist Wendy Panero proposes a new approach to determining a planet's habitability by analyzing its mass, radius, and star composition. This method could help scientists identify the most promising candidates for supporting life in the universe, saving time and resources.
Scientists used data from NASA's Fermi Gamma-ray Space Telescope to measure all starlight produced over 90% of the universe's history. This analysis provides a reference for future missions exploring stellar evolution and confirms previous measurements of star-formation rates.
Researchers have discovered a binary star system containing massive Wolf-Rayet stars that are spinning extremely fast, producing incredibly fast winds. The system's wind speeds are 100,000 times quicker than a hurricane on Earth, while the surrounding dust cloud moves at a much slower pace, suggesting unequal gas distribution.
A historian challenges the traditional view of the Domesday Book, a famous document created by William the Conqueror in 11th-century England. New research suggests that the final version of the book was compiled years after its initial publication, and that it was not the top-down, orderly bureaucratic enterprise previously thought to ...
The Microbiome Search Engine (MSE) enables fast comparison of microbiomes by searching for structurally or functionally similar microbes. MSE proposes innovative evaluation indices to measure microbiome novelty and impact, providing a bird's eye view of the microbiome data universe.
Researchers blast trapped electrons with laser pulses to generate a cascade of particles, shedding light on astrophysical plasmas and potential industrial applications.
Researchers from Lund University have developed a more effective technique to search for dark matter in the universe. By analyzing larger amounts of data generated at CERN, they hope to find signs of new particles that could connect visible and dark matter.
A new study predicts that gravitational wave readings from neutron star collisions can accurately measure the Hubble constant, improving current disputed results. With 25 readings, accuracy will reach 3%, narrowing to 1% with 200 readings.
Scientists from Samara University have discovered new chemical mechanisms for polycyclic aromatic hydrocarbon (PAH) synthesis at very low temperatures, including -183 C. These findings challenge the prevailing view that PAHs can only form at high temperatures and suggest a possible link to the origin of life in the universe.