Articles tagged with Universe
Astronomers have discovered a quasar harboring an 800 million solar mass black hole, located in a primarily neutral Universe at a redshift of 7.54. The finding challenges our understanding of the early growth of supermassive black holes and their host galaxies.
Brazilian researcher Juliano Cesar Silva Neves challenges the standard cosmological model by proposing the elimination of the spacetime singularity and the possibility of a prior contraction phase. The current expansion may be preceded by contraction, with potential vestiges still present in the universe.
The IceCube Collaboration reports a critical measurement that shows energized neutrinos can be stopped cold as they pass through the Earth, exceeding previous expectations. The new study confirms the Standard Model of particle physics but also suggests potential for new physics beyond previously unknown spatial dimensions.
A new paper by physicist Stephen Jordan explores whether the universe holds solutions to difficult computational problems, such as number partitioning. The universe's background energy density is found to be close to zero, implying a stable material universe and potentially offering insights into these problems.
Scientists at the University of Sussex have disproved the existence of a specific type of axion, an important candidate for 'dark matter', across a wide range of its possible masses. The study limits the characteristics that these particles could have, sending physicists back to the drawing board in their hunt for dark matter.
Astronomers have detected the second most distant star-forming galaxy in the universe, born 12.8 billion years ago, using the Large Millimeter Telescope (LMT). The galaxy is one of the first massive galaxies to form and was observed with high precision using millimeter waves.
A new cosmic picture of the universe's history shows a close agreement with previous findings, leaving little room for new physics that could reveal dark matter and dark energy. The results support the standard model of Big Bang cosmology, but scientists remain hopeful that new observations will offer clues about what lies beyond.
Scientists directly observed two neutron stars for the first time, detecting gravitational waves and a burst of gamma rays. The event allowed researchers to calculate the expansion rate of the universe and verify Einstein's prediction that gravitational waves travel at the speed of light.
Third-year physics graduate students Kaitlin Rasmussen and Devin Whitten witnessed the historic event using the 2.5-meter Irénée du Pont Telescope in Chile. The observation provided valuable insights into the rapid-neutron capture process, a key mechanism for forming heavy metals like gold, platinum, and uranium.
The detection of light from a neutron star merger reveals the formation of heavy elements like gold and platinum. The observations support theoretical predictions and provide new insights into astrophysics.
A team of scientists from around the world detected gravitational waves and visible light from the collision of two neutron stars. The discovery marks a new era in multimessenger astronomy, allowing researchers to learn more about the universe through different kinds of electromagnetic radiation and gravitational waves.
The University of Wisconsin-Madison has been awarded $12.5 million to develop a new laboratory that will research fundamental properties of plasma to better understand the universe. The lab, known as WiPPL, will combine expertise and equipment from two existing projects to simulate astrophysical phenomena on Earth.
RIT researchers, in collaboration with LIGO and Virgo, successfully triangulated the position of a 1.8 billion-year-old black hole merger. With three advanced detectors observing together, scientists can now pinpoint locations with higher precision, enabling more accurate electromagnetic counterparts searches.
The Canadian Hydrogen Intensity Mapping Experiment (CHIME) is a radio telescope that will survey more than half the sky each day, creating a three-dimensional map of the largest volume of space ever surveyed. This will help scientists better understand the history of the universe and the nature of dark energy.
The Canadian Hydrogen Intensity Mapping Experiment (CHIME) telescope is a revolutionary radio telescope that will create a three-dimensional map of the universe, extending deep into space and time. By measuring dark energy, scientists will better understand the shape, structure, and fate of the universe.
Claudia Ratti receives $475,000 NSF CAREER award to study quark-gluon plasma state and promote STEM education.
Astronomers have measured large, well-ordered magnetic fields in a galaxy 4.6 billion light-years away, providing clues about how magnetic fields formed and evolved over cosmic time. The new observations offer insights into the structure of galactic-sized magnetic fields since the beginning of the universe.
Astronomers observe magnetic field of a galaxy 5 billion light-years away, finding a similar strength and configuration to the Milky Way's. This suggests galactic magnetic fields form early in a galaxy's life and remain relatively stable.
Physicists at Johannes Gutenberg University Mainz introduce a new mechanism explaining dark matter's observed quantity, suggesting instability in its early universe phase. This alternative to the WIMP theory could be tested in future experiments on gravitational waves and CERN's LHC particle accelerator.
Researchers successfully performed thermonuclear measurements of nuclear reaction cross-sections in extreme plasma conditions, replicating previous accelerator experiments. This achievement lays groundwork for studying phenomena in stellar interiors, such as plasma electron screening.
Swansea University scientists have made a groundbreaking observation of spectral line shapes in antihydrogen, a key step towards understanding the origin of matter. The team has also precise determined the antihydrogen hyperfine splitting and measured its first transition line shape.
A study by MIT researchers found that delaying access to new technologies can stifle their spread, as seen in the case of cryptocurrency Bitcoin among incoming freshmen. The study showed that early adopters who received their allotment late cashed out at nearly twice the rate as those who received it earlier.
Researchers from IBS Center for Geometry and Physics introduce a new mathematical operation to catalog Legendrian singular knots, crucial for understanding complex 3D spaces like our universe. The study aims to explore the fascinating possibilities of 3D spaces and provide a tentative list of all possible shapes.
Using lasers, MSU scientists have replicated a mechanism forming H3+, the universe's most abundant ion, revealing 'phantom mechanisms' in astrochemistry. The team discovered roaming chemistry plays a crucial role in this process.
A new study reveals that the largest galaxies in the universe have been aligned with their surroundings for at least ten billion years. The discovery suggests that these galaxies are especially sensitive to their environment and were influenced by their surroundings from a young age.
Physicists from the University of Liverpool have made a significant breakthrough in probing the 'dark content' of the universe using a novel experiment based on quantum interferometry. The experiment relies on ultra-cold atoms and could have far-reaching applications in navigation, gravity scanning, and understanding dark energy.
UBC physicists Qingdi Wang and Bill Unruh propose a new theory that suggests the universe's expanding space-time is constantly fluctuating, leading to an accelerating expansion. This idea resolves a major incompatibility issue between quantum mechanics and general relativity.
A large, wispy shell of gas, Sh2-308, is blown out by intense radiation from the extreme Wolf-Rayet star EZ Canis Majoris. The star's ongoing activity pushes the bubble to grow bigger and farther apart.
An international team of physicists and astronomers has detected for the first time multiple images from a gravitationally lensed Type Ia supernova. The observations suggest that this phenomenon can be used to test key cosmological theories about the accelerating expansion of the universe and the distribution of dark matter. By analyzi...
A team of international astronomers has discovered a magnified Type Ia supernova, allowing for precise measurements of the universe's expansion rate and dark energy. The discovery uses gravitational lensing to amplify the light from a
Researchers have used archival data from NASA's New Horizons mission to measure visible light from other galaxies, giving an upper limit to the amount of light in the cosmic optical background. The findings offer promise for future astronomy measurements from the outer solar system.
Researchers have discovered that gravity disrupts the symmetry of electromagnetic fields, potentially impacting the study of the Big Bang and its effects on cosmic evolution. This new finding sheds light on the nature of magnetic monopoles and the behavior of photons in electromagnetic fields.
Scientists at IBS have proposed a hypothetical portal connecting two possible dark sector particles: dark photons and axions. This discovery could lead to reinterpretation of previous data and potentially breakthroughs in axion and dark photon searches.
Astronomers have developed a way to detect the ultraviolet (UV) background of the Universe, which could help explain why there are so few small galaxies in the cosmos. The UV radiation strips smaller galaxies of the gas needed to form stars, effectively stunting their growth.
An experiment aims to resolve divergence between special relativity and standard model of cosmology by precisely measuring particle mass. The results may indicate whether the universe has a resting frame.
A Yale-led team has created one of the highest-resolution maps of dark matter ever produced, providing a detailed case for its existence. The map, derived from Hubble Space Telescope Frontier Fields data, closely matches theoretical predictions and offers insights into the universe's structure and galaxy formation.
A team of scientists from Clemson University has discovered five ancient galaxies with extremely powerful supermassive black holes, emitting billions of times more energetic gamma rays than visible light. The oldest known gamma-ray blazars were previously thought to be over 2 billion years old.
A new study suggests that determining the speed of gravity in the cosmos from gravitational waves could resolve the puzzle. If gravitational waves are found to travel at the speed of light, it would rule out alternative gravity theories and support Einstein's Cosmological Constant.
New research suggests that pure iron grains are extremely rare in the universe, contrary to previously thought, and may be forming invisible metal particles. A study published in Science Advances used a rocket-based experiment to simulate the formation of pure iron grains in space, revealing grain formation is highly unlikely.
New measurements of neutrino oscillations have shed light on outstanding questions regarding fundamental properties of neutrinos. These findings may provide clues to the nature of dark matter and how the universe arose from the Big Bang.
A global team of researchers found that ram-pressure stripping is more prevalent than thought, driving gas from galaxies and preventing star formation. The study reveals that this process is potentially the dominant way galaxies are quenched by their surrounds, leading to an early death.
Researchers have developed a method to measure temperature and voltage in systems far from equilibrium, which could lead to the creation of more efficient microelectronic devices. This breakthrough has significant implications for advancing technology, particularly in the development of smaller, faster electronic components.
A team of astronomers from ANU has found a massive galaxy supercluster near the Milky Way, which influences the motion of our Galaxy. The Vela supercluster is one of the largest concentrations of galaxies in the Universe, and further studies will confirm its size.
Swansea University researchers have conducted the first precision study of antihydrogen, a key step towards understanding why matter and antimatter exist. By measuring the spectrum of light emitted from excited antihydrogen atoms, they hope to shed light on the Big Bang's central question: what led to the creation of our universe.
An international team of scientists has discovered that the biggest galaxies in the universe develop in cosmic clouds of cold gas. The study used radio telescopes to investigate an embryonic galaxy cluster, where they found a cloud of very cold gas where galaxies were merging.
Astronomers detected carbon monoxide gas indicating large quantity of molecular hydrogen, suggesting formation of a single, gigantic galaxy. The cloud of cold gas is estimated to be three times the size of the Milky Way Galaxy.
A team of UCLA astronomers observed a galaxy and found that stars are responsible for producing dust, a key component of rocky planets. The researchers focused on a galaxy with two young clusters of stars and constructed a map tracing the dust in the galaxy.
Researchers used brightness and simultaneous detection to pinpoint FRB source, measuring galaxy's magnetic field for better cosmology models. The findings shed light on the origins of powerful radio flashes, offering insights into stellar evolution and the Universe's larger-scale structure.
Theoretical physicists suggest creating a ring of ultracold atoms to measure gravity at short distances, potentially clarifying the universe's accelerating expansion. This concept has practical applications in motion sensors and quantum computing.
Researchers used a German-Hungarian team to extend the Standard Model and predict axion mass range for dark matter detection. The results suggest that axions could make up 85% of the universe's mass, with masses between 50-1500 micro-electronvolts.
Leading ethics journals urge stricter protections for patients from doctors' personal values and conscientious objection. Bioethicists advocate prioritizing patient needs over clinicians' subjective moral opinions.
The GaLactic and Extragalactic All-sky MWA survey has produced a catalogue of 300,000 galaxies observed by the Murchison Widefield Array, revealing unprecedented radio technicolour views of the sky.
A team of astronomers charted the rise and fall of galaxies over 90 percent of cosmic history using the FourStar Galaxy Evolution Survey. They discovered young galaxies that existed as early as 12.5 billion years ago, with diverse structures and star formation patterns.
Researchers from Johns Hopkins University suggest that fast radio bursts could provide clues to dark matter by detecting black holes of a specific mass. The team argues that the brief flashes of radio-frequency radiation can detect black holes with masses predicted for dark matter, offering a direct probe of this phenomenon.
A team of researchers from the University of Oxford suggests that life on Earth is more likely to exist in the future than it is now. This is because the necessary elements for life, such as carbon and oxygen, took tens of millions of years to develop following the Big Bang.
Associate Professor Dr Joan Vaccaro's research resolves an anomaly in conventional physics by introducing 'T violation', forcing the universe and us into the future. This breakthrough reveals how time evolution and conservation laws emerged, allowing for aging and a flow of time.
Researchers have developed a new strategy to probe the nature of gravity and dark energy by studying the empty spaces in between galaxies. The study found that analyzing cosmic voids improves measurements of how visible matter clusters together, bringing astronomers closer to testing Einstein's general theory of relativity.
Researchers from the Niels Bohr Institute analyzed thousands of neutrinos in the IceCube Neutrino Observatory at the South Pole. They could not find any signs of a sterile neutrino, which would help explain dark matter and the imbalance of matter over antimatter in the universe.
Recent neutrino discoveries by T2K and NOvA experiments at Colorado State University provide evidence of oscillations between neutrinos and antineutrinos, violating a longstanding physics principle. The findings hint at the universe's matter-antimatter imbalance and offer opportunities to study the weak nuclear force.
Researchers used the Gran Telescopio CANARIAS to observe a superluminous supernova almost from its occurrence, revealing surprising behavior including an initial increase in brightness followed by a decline and later stronger increase. The study sheds new light on these rare events, which are up to 100 times more energetic than Type 1a's.