Theoretical results suggest that small blocks of matter on a desktop could reveal elusive properties of dark matter particles. Researchers propose using topological insulators to detect the axion, a theoretical particle thought to make up a quarter of the universe.
A team of researchers has analyzed over 70,000 galaxies to test two modified gravity theories that aim to explain dark matter's effects on the universe. The study found that one theory, TeVeS, can be excluded due to large uncertainty in measurements, while another theory, f(R), still allows for exclusion of dark energy with current data.
A new study reveals that Arctic reindeer have evolved to bypass their internal biological rhythms, relying instead on light and dark cycles to regulate hormone levels. This adaptation allows them to thrive in environments with no reliable light-dark cycle.
A galaxy study confirms the validity of general relativity on a cosmic scale, with the existence of dark matter as the most likely explanation for observed phenomena. The study rules out alternative theories of gravity, including tensor-vector-scalar gravity and f(R), which fail to predict the observed galaxy clustering and distortion.
A new study led by Alexander Kashlinsky at NASA's Goddard Space Flight Center reveals that a collective motion dubbed the 'dark flow' persists to much greater distances -- as far as 2.5 billion light-years away.
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.
Researchers will present their findings on the latest dark matter detection experiments and detectors, shedding light on one of science's last great frontiers. The UCLA symposium aims to advance our understanding of dark matter, a mysterious substance thought to make up almost 25% of the universe.
Researchers from Queen's University are making progress in detecting dark matter using the Cryogenic Dark Matter Search experiment. The team, led by Professor Wolfgang Rau, has observed two events with characteristics of an interaction involving a dark matter particle, but further analysis is needed to confirm the results.
A new study extends gravitational lensing to smaller, older structures, improving understanding of dark matter distribution. Researchers use x-ray emissions to pinpoint galaxy cluster centers and measure total masses.
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 at Brandeis will explore the behavior of active matter using interdisciplinary approaches, aiming to shed light on biological structures like flagella beating. The project seeks to elucidate the properties of active matter at length scales ranging from microscopic to macroscopic.
A clinical trial found that eating about an ounce and a half of dark chocolate daily for two weeks reduced stress hormone levels and corrected other stress-related biochemical imbalances. This study provides strong evidence for the potential benefits of dark chocolate in reducing emotional stress.
A team led by Case Western Reserve University physicist Tom Shutt is planning the world's largest WIMP catcher, a 20-ton liquid xenon detector that could increase detection chances by 30,000 times. The experiment aims to confirm the dark matter theory and understand the universe's composition.
Vanderbilt University astronomers participate in the Baryon Oscillation Spectroscopic Survey (BOSS) to measure the distance of galaxies and quasars. The team uses 400 simulated universes to test data analysis methods and interpret BOSS's measurements of dark energy.
A team of researchers has developed a scintillating bolometer, a device that detects light and heat produced by dark matter particles. The device was tested at the Canfranc Underground Laboratory in Spain and performed excellently, proving its viability as a detector for dark matter.
Researchers found that galaxy collisions 'puff up' a galactic disk, producing stellar rings and flared edges. The Milky Way's puffy appearance is likely due to interactions with satellite galaxies and dark matter.
A new study suggests that adolescents who engage in high-risk activities have more adult-like white matter tracts than their peers. This finding challenges the assumption that delayed brain maturation is the cause of impulsive and dangerous decisions during adolescence.
Scientists from the University of Gothenburg found that a mysterious flux of electrons and positrons originates from supernova remnants, not dark matter. The study shows that a star 15 times more massive than the sun exploded in the Milky Way, creating a shock-wave that accelerated particles.
The Joint Dark Energy Mission aims to determine the nature of dark energy using three techniques: supernovae, weak gravitational lensing, and baryon acoustic oscillation. A new satellite design could revolutionize these methods, enabling precise measurements of expansion history.
The study found that intense heat from early stars and black holes evaporated gas from small clumps of dark matter, rendering them barren. This natural explanation for galaxy formation supports the view that cold dark matter is the best candidate for the mysterious material believed to make up most of the universe.
Researchers will explore dark matter particles and neutrinos at the SNOLAB facility, seeking answers about the universe's building blocks and evolution. The studies aim to make new discoveries, including a rare nuclear decay related to unique neutrino properties.
Most dark gamma-ray bursts are found in normal galaxies that can be detected by large ground-based optical telescopes, contradicting previous theories. The study suggests that dark bursts may represent stars that never drifted far from the dusty clouds that formed them.
A team of astronomers has directly measured the distance to a galaxy, providing a precise tool for unraveling the mystery of Dark Energy. The technique uses water molecules in disks orbiting central black holes to amplify radio waves, enabling measurements up to 160 million light-years away.
A new dark energy model proposes a cosmological phase transition, where the universe 'froze' about 11.5 billion years ago, causing it to expand at an ever-increasing rate. This theory attributes dark energy to a field dubbed quintessence, which acts as an antigravity agent and is spread uniformly throughout space.
A study found that adolescent binge drinkers have lower coherence of white matter fibers, suggesting poorer white matter health. This compromise can lead to difficulties in processing information and emotional functioning.
Research identifies genetic variants in MC1R as associated with increased melanoma risk in people with dark hair. The study found that these variants were more common in those who did not typically burn easily from the sun, suggesting a complex relationship between genetics and melanoma risk.
Scientists have identified the two neural centers responsible for regulating sleep patterns, revealing that disruptions to these centers can cause jet lag. The study found that deep sleep is more closely tied to light-dark cycles, while REM sleep follows a separate internal clock, leading to a delay in adaptation to new schedules.
Researchers have imaged the nearly invisible layer of retinal pigment epithelial cells in a living eye, which could help diagnose macular degeneration at an early stage. This breakthrough technique uses fluorescent chemicals produced by the cells to detect potential disease before symptoms appear.
Sandra Faber is being honored for her extraordinary advances in understanding the properties of distant galaxies, dark matter, large-scale structure, and black holes. Her innovative leadership has driven significant discoveries in modern cosmology, including the role of dark matter in galaxy formation.
Astronomers have discovered star birth within a cloud of primordial gas, known as the Leo Ring, which lacks dark matter and heavy elements. This finding suggests that new galaxies may have formed through a distinct process, potentially providing insight into the early Universe.
Dan Akerib, Chair of the Case Western Reserve University Physics Department, has been elected an American Physical Society (APS) Fellow for his significant contributions to direct dark matter detection experiments. He will discuss current and planned research in 'The Search for Dark Matter' at the AAAS conference on February 16.
Astronomers are studying a mysterious gamma-ray emission from the center of the Milky Way galaxy, which is surprising given the presence of massive stars and black holes. The emission is thought to be caused by exotic particles such as dark matter or the decay of radioactive elements.
Researchers at Durham University's Institute for Computational Cosmology created simulations to predict galaxy formation and dark matter effects. The work aims to improve understanding of dark matter, a mysterious substance making up 80% of the Universe's mass.
Scientists at Fermilab will present talks on the proposed Project X accelerator, the latest Higgs search results from the Tevatron collider experiments, and an update on the search for dark matter using a bubble chamber. The conference features expert discussions on high-intensity accelerators and their applications in particle physics.
A recent study used Diffusion Tensor Imaging (DTI) to assess white-matter microstructure in youth with and without histories of heavy prenatal alcohol exposure. The findings show that alcohol can damage the microstructural integrity of fetal cerebral white matter, particularly in the frontal and occipital lobes, which are relevant for ...
A new detector built by MIT physicist Jocelyn Monroe and her students will aid in the search for dark matter by distinguishing between ordinary and dark-matter particles. The device's ability to identify ordinary neutrons will increase its sensitivity to dark matter, a key step towards detecting the mysterious particles.
Scientists study Venus' atmosphere using instruments on board ESA's Venus Express, discovering high-contrast zones created by a mysterious chemical that absorbs ultraviolet light. Clouds are found at similar heights across dark and bright regions, with temperature variations influencing atmospheric dynamics.
A team of Iowa State physicists, including Soeren Prell, are part of an international research team testing the Kobayashi-Maskawa theory, which explains the difference between matter and antimatter. The BaBar experiment has confirmed the theory's predictions and provided insights into the universe's origins.
Researchers used a massive computer simulation to 'see' gamma-rays given off by dark matter in the Milky Way galaxy. They predict that these gamma-rays should glow in a characteristic pattern near the Sun, which could help detect invisible clumps of dark matter.
A team of researchers in Canada has made a breakthrough in detecting dark matter by identifying a significant difference between acoustic signals induced by neutrons and alpha particles. This discovery could lead to improved background suppression in dark matter searches using this type of detector.
A study by The Hershey Company reveals resveratrol, a compound found in red wine, is also present in cocoa and dark chocolate products. These foods contain significant levels of resveratrol, an antioxidant with potential health benefits.
Physicists have made groundbreaking discoveries in various fields of research. Researchers created an 'invisibility cloak' for ocean-based structures to withstand tsunamis. Meanwhile, a team at Oxford University proposed that dark energy may be an illusion and instead, we live in a unique void in the universe. Additionally, scientists ...
Researchers identified an unexpected motion in distant galaxy clusters, suggesting gravitational attraction beyond the observable universe. The 'dark flow' is constant out to a billion light-years and flies in the face of predictions from standard cosmological models.
The survey uses baryon acoustic oscillations to measure the expansion of the universe. It will double the volume of space in which red luminous galaxies are studied, observing 10,000 square degrees of sky out to redshifts of z = 0.7.
Researchers analyzed light from small galaxies to determine their masses, finding all dwarf galaxies had the same mass - 10 million times the mass of the sun. This discovery reveals a fundamental property of dark matter, a key component of the universe.
Researchers used a supercomputer to simulate the halo of dark matter surrounding the Milky Way, finding dense clumps and streams in the inner region. The study may help scientists understand what dark matter is and could detect evidence of its particles through gamma-ray signals.
A computer simulation reveals the formation of the first stars in the universe, showing how dark matter and gas interacted to create these ancient celestial bodies. The study provides insight into the origins of life and planets, highlighting the importance of stellar elements in our bodies.
A new study has identified several specific white matter regions and deep gray matter areas of the brain sensitive to prenatal alcohol exposure in children with Fetal Alcohol Spectrum Disorder (FASD). Diffusion tensor imaging (DTI) was used to map brain structure, revealing widespread diffusion abnormalities beyond the corpus callosum.
Researchers at University of Missouri use tree rings to determine that massive wildfires in Canada caused the infamous 'New England Dark Day' in 1780. The study combines written accounts and fire scar evidence to provide a scientific explanation for this mysterious event.
The EuroQUAM inauguration conference in Barcelona showcased cutting-edge results in cold quantum matter, a field with applications in high-precision measurement and quantum information. The conference aimed to stimulate collaborations between experiment and theory, highlighting the high quality of research in Europe.
LUX detector, funded by NSF and DOE, searches for WIMPs in 4,800ft underground South Dakota mine, aiming to detect rare dark matter particles, the largest discovery since antimatter in the 1930s.
A recent study at the University of Illinois found that increased carbon dioxide in the atmosphere leads to decreased soil organic matter, contradicting expectations. The researchers attribute this finding to increased moisture in the soil, which accelerates decomposition and reduces soil productivity.
The Naval Research Laboratory will design a lunar telescope, the Dark Ages Lunar Interferometer (DALI), to study the last unexplored epoch in the Universe's history. The telescope aims to detect signals from hydrogen atoms in the Dark Ages, which can provide insights into the first stars, galaxies, and modern Universe.
Researchers detected no WIMPs, but the null result is valuable as it informs future detector designs. The Cryogenic Dark Matter Search will move to a deeper site at Snolab in Canada with larger detectors to increase chances of finding dark matter.
The COUPP experiment has set a new limit on the spin-dependent properties of WIMPs, contradicting previous claims. By using a glass jar filled with CF3I, scientists study statistical variations between bubble photographs to detect dark matter particles.
Astronomers have measured the distribution and motions of thousands of galaxies in the distant Universe using ESO's VLT. This study provides a powerful way to tackle the mystery of dark energy, with results supporting the simplest form of dark energy.
Researchers developed a novel method to produce dark-field x-ray images using nanostructured gratings, enabling diagnosis of osteoporosis, breast cancer, and Alzheimer's disease. This technology can be adapted to existing medical equipment, improving image clarity and sensitivity.
Researchers found that dark coat color is linked to genes reducing fitness, contradicting Darwin's theory. The study reveals that light-coated sheep have higher reproductive success despite being smaller.
Researchers used supercomputing power to simulate the early Universe and identify potential methods for measuring dark energy. The study's findings will help design a proposed satellite mission called SPACE, which aims to unveil the nature of dark energy and its role in the Universe's accelerating expansion.
Galaxies in crowded environments, like superclusters, experience violent lives due to high-speed collisions and stripping away of gas. The Hubble Space Telescope's Advanced Camera for Surveys mapped dark matter scaffolding, revealing dense clumps that match the location of old galaxies.