Articles tagged with Big Bang Theory
New Planck analysis confirms Viatcheslav Mukhanov's theory on quantum origin of universe's structure, supporting the idea that quantum fluctuations gave rise to galaxies and clusters. The study also rules out primordial gravitational waves, suggesting that instruments may not be sensitive enough to detect them yet.
A recent study confirms that galactic contaminants are too intense to distinguish cosmological gravitational waves, casting doubt on the detection. The Planck-BICEP2 collaboration used multiple instruments to rule out contamination, but acknowledge the need for sharper eyes to detect the signal.
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.
A team from Imperial College London and University of Barcelona used astronomical surveys to measure the baryon acoustic oscillation scale, a standard distance central to the universe's expansion. The study suggests current methods for measuring distance are more complicated than needed, offering a data-driven approach to cosmology.
Steven Blusk's groundbreaking discovery of Xi_b'- and Xi_b*- particles has major implications for the study of quark dynamics. The unique mass of each particle is attributed to a heavyweight b quark and angular momentum, with the Xi_b*- state being slightly heavier due to its aligned spins.
Researchers from Imperial College London propose that spacetime curvature provided stability for the universe to survive expansion after the Big Bang. The team investigated the interaction between Higgs particles and gravity, finding even a small interaction could stabilize the universe.
Researchers confirm lithium-6 production in Big Bang energy range, contradicting observed lithium concentrations in stars. The study resolves the 'lithium problem,' a stubborn issue in astrophysics.
The Planck Telescope's most detailed map of the cosmic microwave background contains features that challenge the standard model of cosmology. By processing the data differently and including other effects, scientists have found that several anomalies disappear, but others may still persist.
Researchers say they've collected the first direct evidence for cosmic inflation, a cataclysmic event that marked the universe's birth. The team observed strong B-mode polarization signals in the cosmic microwave background, a signature of gravitational waves, confirming a deep connection between quantum mechanics and general relativity.
Researchers from BICEP2 collaboration announce groundbreaking discovery of cosmic inflation, providing first direct image of gravitational waves. The data also confirm a deep connection between quantum mechanics and general relativity.
Scientists discovered that massive galaxies in the early universe were formed by explosive star formation triggered by galaxy collisions. This theory contradicts the traditional view that galaxies grew larger over time through constant star formation and mergers.
A team of astronomers discovered a primordial galaxy, Himiko, seen at 800 million years after the Big Bang. The observations using Hubble and ALMA revealed intense star formation, but puzzlingly low metal content, challenging current star formation theories.
Researchers detected twisting patterns in polarization of oldest light in the universe, hinting at complex processes and properties of the earliest moments in the universe's formation. The discovery could help physicists better understand the distribution of mass and define cosmologically important properties.
Physicists have successfully simulated the evolution of the early universe using ultracold cesium atoms. The experiment replicated patterns resembling the cosmic microwave background radiation, shedding light on the universe's origins. By studying these patterns, researchers can better understand the universe's structure and properties.
Scientists at PTB successfully generated and investigated symmetry-breaking in ion Coulomb crystals, mirroring the early universe. The research enables the study of quantum phase transitions and complex system dynamics.
A new analysis of cosmic microwave background radiation data has taken the furthest look back in time, revealing an excess of radiation that may indicate the presence of primordial neutrinos or dark energy. The findings challenge current theories on the universe's early expansion history.
Researchers used a CSIRO radio telescope to measure the temperature of an unnamed galaxy 7.2 billion light-years away, finding it was 5.08 Kelvin (-267.92 degrees Celsius). This confirms the Big Bang theory's prediction that the Universe's temperature drops smoothly as it expands.
Astronomers have discovered a previously unseen population of seven primitive galaxies that formed more than 13 billion years ago. The galaxies were observed using Hubble's Wide Field Camera 3 in near-infrared light, allowing researchers to study the early universe.
Researchers measured lithium in Small Magellanic Cloud gas, finding more than predicted by Big Bang models. The discrepancy could indicate novel physics or dark matter particles.
Researchers from the University of Calgary found that even with complete information, predicting certain experiment outcomes in quantum physics can't be done perfectly beforehand. Quantum theory appears to be close to optimal in terms of its predictive power, according to a new study.
Researchers searched for 'knots' in space using WMAP data, finding no signs of cosmic textures. The study places limits on theories producing textures, ruling out most models at 95% confidence.
Researchers have developed an algorithm that can simulate particle collisions on a quantum computer, a feat currently beyond conventional supercomputers. This breakthrough could enable quantum computers to tackle challenging problems like breaking complex codes and studying the early universe.
Avi Loeb's new calculations suggest the ideal time to observe cosmic perturbations was 500 million years after the Big Bang, when the first stars and galaxies began to form. This era offers a window into the early universe before information is lost to the formation of gravitationally bound objects.
The Kavli Institute aims to crack the puzzles of cosmological theory, including dark energy's repulsive gravity, dark matter's composition, and cosmic inflation's rapid expansion. New simulations and detectors will help scientists uncover new physics beyond current theories.
Researchers recreated universe's first billion years using largest cosmological simulation to date. Thin streams of cold gas flowed into early black holes, causing rapid growth and challenging astrophysical theory.
Researchers found two clouds of primordial gas that match theoretical predictions, with a composition of mostly hydrogen and helium. This discovery challenges our understanding of how metals are distributed in the universe and provides new constraints on the modern cosmological explanation for element origins.
Researchers have measured the electron's shape for the first time, finding it to be almost perfectly spherical. This breakthrough could help explain the universe's lack of antimatter and refine fundamental theories of physics.
The Milky Way belongs to a rare subset of galaxies with two satellites as bright and close by as the Large and Small Magellanic Clouds. Researchers analyzed over 20,000 galaxies similar to the Milky Way using the Sloan Digital Sky Survey data.
Researchers found that just four percent of galaxies are similar to the Milky Way, with two satellites as bright and close by as the Magellanic Clouds. The study used data from the Sloan Digital Sky Survey and computer simulations to understand how the Milky Way fits into the broader context of the universe.
NC State physicist Dean Lee and colleagues create simulations using effective field theory to calculate low-lying states of carbon-12, confirming the Hoyle state's existence. The research provides a better understanding of 'fine-tuning' in stellar processes that produce essential elements for life.
Scientists led by Syracuse University physicist Sheldon Stone observed the decay of a rare B meson particle, which may hold clues about the universe's matter-antimatter imbalance and the nature of fundamental forces. The discovery is part of ongoing efforts to understand why the universe evolved with more matter than antimatter.
Researchers at the University of Innsbruck have successfully produced controlled strong interactions between two fermionic elements, exhibiting analogies to the Big Bang's primordial substance. The experiment opens new avenues for investigating cosmic phenomena and novel states of matter in solid-state physics.
Astronomers have found the most distant galaxy candidate yet seen, about 13.2 billion light-years away, in ultra-deep imaging data from the Hubble Space Telescope. The study reveals a rapid build-up of early galaxies around 480 million years after the Big Bang, with a tenfold increase in star birth rate over 170 million years.
The Hubble Space Telescope has detected a compact galaxy made of blue stars 480 million years after the Big Bang, providing best insights yet into the universe's birth and evolution.
Researchers found evidence of universal ubiquitous magnetic fields in deep space between galaxies with an average strength of femto-Gauss. These findings suggest that the magnetic fields may have formed shortly after the Big Bang, long before stars and galaxies formed.
Researchers explore cosmic microwave radiation as favored method to detect primordial gravitational waves, offering a potentially new probe of early universe cosmology. The discovery could provide a dramatic new window on the origin and evolution of the universe.
A team of researchers created a particle believed to have existed immediately after the Big Bang, producing a new form of matter. This discovery expands our understanding of the universe's fundamental laws and raises new questions about the balance between matter and anti-matter.
A team of researchers has resolved a long-standing conflict in the theory of galaxy formation, using millions of hours of supercomputer simulations. The study reveals that cosmic explosions, such as supernovas, play a key role in preventing the formation of stars and dark matter at the centers of dwarf galaxies.
Researchers investigate how our bodies function, including why we chew food to create a firm blob for safe swallowing. Fingerprints are also examined, with tests suggesting they may aid grip and skin flexibility, but the true purpose remains unknown.
Astronomers using Hubble Ultra Deep Field have discovered the most distant galaxies in the universe, dating back 13 billion years. The findings provide key insights into the formation of galaxies and the early universe.
The Louisiana Tech team is part of the ATLAS collaboration for the Large Hadron Collider, investigating new physics beyond the Standard Model. They have directly contributed to data quality software development and will analyze the data to make important discoveries.
Researchers used a custom-made filter to find 22 early galaxies and confirmed the age of one at 787 million years post-Big Bang. The findings suggest that reionization likely began during this era, with star-formation rates significantly lower than expected.
Researchers used AdS/CFT correspondence in string theory to describe electrons' quantum-critical state, which plays a role in high-temperature superconductivity. The discovery bridges the gap between macroscopic and microscopic worlds.
The NIST super-sensors will look for subtle fingerprints in the cosmic microwave background from primordial gravitational waves, potentially detectable today. A detection would provide clear evidence for the inflation theory and insights into string theory models.
A team of Caltech researchers proposes a mathematical model explaining an anomaly in the universe's radiation and matter distribution. The model predicts more cold than hot spots in the Cosmic Microwave Background radiation, which could offer insights into what happened during inflation and potentially even what came before the Big Bang.
Researchers found that using science or God to explain ultimate questions can manipulate people's attitudes towards the other. Those who use God as an explanation display a more positive association with God and a negative association with science.
Astronomers have discovered that the number of newly formed stars is higher than initially calculated, with heavy stars forming in clusters near the center of galaxies. The study found that these clusters are more common in the core regions of galaxies, leading to a different ratio of heavy to light stars.
J. Richard Bond is honored for his theoretical framework to interpret the observed inhomogeneities in the Big Bang's fossil radiation and understand galaxy evolution. His research has helped us transition from a nearly featureless early Universe to the structured world of galaxies, stars, and planets.
Case Western Reserve University researchers discover that gravitational radiation can be produced by a mechanism other than inflation, which could redefine the concept of a 'smoking gun' for early universe theories. This finding strengthens motivation for detecting primordial gravitational radiation, which is crucial for understanding ...
Researchers investigated B-meson decays to understand the origin of matter's dominance over antimatter in the universe. The study reveals a significant discrepancy between theoretical models and observations, suggesting the presence of a new principle of physics.
Astronomers have detected a record-breaking short gamma-ray burst (GRB) 7.4 billion years ago, revealing new insights into their formation mechanisms.
A new study suggests that the universe's first stars were dark, invisible 'dark stars' powered by dark matter. These massive stars could be billions of years old and would generate gamma rays, neutrinos, and antimatter.
Researchers have found an unusual cold spot in the cosmic microwave background that could be caused by a cosmic defect created just after the Big Bang. The discovery provides a potential window into understanding the fundamental nature of elementary particles and forces.
Researchers at University of Cambridge and Institute of Physics of Cantabria propose existence of cosmic defects called textures, predicted by particle physics theories. Textures are defects in vacuum left over from hot early universe, observed as hot and cold spots in cosmic microwave background radiation.
Researchers using Loop Quantum Gravity theory find a contracting universe before the Big Bounce, with space-time geometry similar to today's. A new mathematical model allows for precise analytical solutions and reveals a 'cosmic forgetfulness' due to extreme quantum forces during the Big Bounce.
Astrophysicists at the University of Illinois propose a new method to measure the fine-structure constant using relic radiation from the birth of the universe. This technique could help explain dark energy and constrain a
According to physicist Andrei Linde, recent developments in cosmology have changed our understanding of the structure and fate of the universe. Inflationary theory suggests that our universe could emerge from as little as a milligram of matter or even nothing, with quantum fluctuations creating galaxies along the way.
Physicist Cheng Chin creates a vacuum chamber in his laboratory that can reach billionths of a degree above absolute zero, simulating the conditions after the big bang. The experiment aims to explore the formation of galaxies and understand the origin of complex structures in the universe.
The James Webb Space Telescope's mirror blanks have been constructed, forming a mirror over seven times larger than the Hubble Telescope's mirror. The larger mirror enables excellent resolution and sensitivity, allowing scientists to see back to the formation of the first galaxies after the Big Bang.
Astrophysicists have resolved a long-standing issue with the Big Bang theory by studying gas movements in stars. Computer models revealed that low mass stars destroy helium 3 before it can be released into space, resolving the discrepancy.