The Hubble Space Telescope has discovered a double Einstein ring, caused by the bending of light from two distant galaxies behind a massive foreground galaxy. The discovery offers insights into dark matter and the nature of distant galaxies.
For the first time, astronomers have directly visualized the distribution of dark matter in a supercluster, allowing for the detection of irregular clumps and detailed shapes. This breakthrough study, led by UBC researcher Catherine Heymans, uses NASA's Hubble Space Telescope to map the Abell 901/902 supercluster.
While flavanol-rich dark chocolate offers cardiovascular benefits, manufacturers often remove these compounds to balance calorie content, rendering the product less healthy than claimed. Flavanols have antioxidant properties but are not a guarantee of healthiness.
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.
Three quarters of the universe is dark energy, a mysterious substance that repels gravity. New space missions and improved observation methods will help uncover its secrets.
Researchers solved a longstanding problem of the Cold Dark Matter cosmology model by exposing a critical relationship between interstellar gas and dark matter in galaxy birth. The study showed that dense gas clouds in galaxies form massive stars, which drive 'sloshing' effects that kick dark matter out of the galaxy's center.
Astronomers analyze galaxy clusters and discover that dark matter, a mysterious invisible force, has an incredibly long lifetime. The research suggests that axions, a type of particle with extra dimensions, could be the culprit behind this prolonged existence.
Research suggests that dilaton effects could reduce the abundance of stable dark matter particles like neutralinos by a factor of ten. This finding has implications for supersymmetric searches in colliders and challenges standard cosmology theories.
A groundbreaking study reveals that the first stars formed at the start of the Universe depend on dark matter's nature. The research suggests that some of these primordial stars can still be found in the Milky Way galaxy today.
The universe's earliest stars, formed in warm dark matter strings, could help clarify whether the universe is made of warm or cold dark matter. These ancient stars would have formed in long filaments and could provide new insights into dark matter's energy and its impact on galaxy formation.
The National Research Council recommends pursuing the Joint Dark Energy Mission as the first mission in the 'Beyond Einstein' program, which aims to study dark energy. The report also suggests investing additional funds in technology development of the Laser Interferometer Space Antenna (LISA) program.
The National Research Council recommends the Joint Dark Energy Mission, supported by NASA and DOE, to study dark energy's role in the universe's expansion. The mission aims to map the sky with unprecedented resolution and study Type Ia supernovae to shed light on this mysterious entity.
The W.M. Keck Foundation has pledged $1.5 million to support the final phase of research and development for the Large Synoptic Survey Telescope's (LSST) three-billion pixel digital camera. The LSST will survey the entire visible sky deeply in multiple colors every few nights, probing dark matter and dark energy.
The Gruber Cosmology Prize has been awarded to Saul Perlmutter, Brian Schmidt, and their teams for discovering the accelerating expansion of the universe, dominated by mysterious dark energy. The breakthrough was made possible through innovative techniques using distant Type Ia supernovae as standard candles.
A study found that consuming small amounts of dark chocolate daily reduced systolic and diastolic blood pressure without adverse effects. The findings suggest that adopting flavanol-rich cocoa into one's diet may be a promising approach to lower blood pressure in individuals with above-optimal blood pressure levels.
Researchers employed a new technique to estimate dark matter location and calculate its mass, shedding light on the galactic halo's composition. The method revealed two massive dark objects, one with 7 times the sun's mass, in the Milky Way's outer reaches.
A team of astronomers has discovered a unique structure of dark matter in the galaxy cluster Cl 0024+17, with a ring shape unlike that of galaxies and hot gas. The discovery is among the strongest evidence for dark matter's existence, supporting theoretical models of its behavior under gravity.
In a groundbreaking discovery, Johns Hopkins scientists found that brain cells in the white matter communicate through electrical signals similar to those used by gray matter cells. This process allows 'naked' nerve cells to signal nearby oligodendrocyte precursor cells, potentially aiding in the repair of damaged myelin coats.
The new VERITAS telescope array will enable the detection of an increased number of gamma ray sources, potentially including indirect dark matter detection. The instrument's sensitive instrumentation has an energy threshold of about 100 GeV and can identify sources with an intensity of about 1 photon per minute.
A paper by Lawrence Krauss and Robert Scherrer suggests that matter will dominate over radiation in an ever-expanding universe dominated by dark energy. This means that ordinary matter particles, such as protons and neutrons, will remain stable for trillions of years, potentially allowing life to endure forever.
Researchers used COSMOS field data to measure large-scale distribution of matter, revealing concentration of luminous and dark matter. The 3D map provides insight into the formation and evolution of galaxies and may shed light on dark energy.
Physicist Burton Richter says new experiments will answer some questions but raise others about the universe's composition and expansion. He emphasizes the need for prioritizing crucial research to advance our understanding of dark matter, dark energy, and the Standard Model.
Researchers propose explanation for formation of dwarf spheroidals, faint galaxies composed almost entirely of dark matter. Simulations suggest environmental effects, including ram pressure and tidal shocking, strip away luminous matter, leaving behind dark-matter shadow.
Researchers at Ohio State University have discovered a new high-energy state in DNA that helps dissipate UV energy. The 'dark state', which can last for 10-150 picoseconds, is found in single nucleotides and dissolves energy through 10-50% of the time. This discovery may provide insights into DNA damage and repair mechanisms.
Astronomers have created the first 3D map of the universe's dark matter distribution, revealing a web-like structure that confirms conventional theories on how galaxies formed. The map was derived from the Cosmic Evolution Survey and offers unprecedented detail on the large-scale filamentary structure of dark matter.
Complex organic molecules from natural organic matter fouls water purification and desalination facilities, creating bio-fouling layers. Researchers found that certain ions like calcium interact strongly with natural organic matter.
Researchers using NASA's Hubble Space Telescope found dark energy was present and accelerating the universe's expansion at least 9 billion years ago. This discovery provides a crucial clue to understanding dark energy's strength and permanence.
Researchers have found direct proof of dark matter's existence in a study using state-of-the-art telescopes. The team observed two merging galaxy clusters, revealing massive amounts of non-luminous matter that don't interact with normal matter.
SNAP, a NASA-supported mission, aims to measure the expansion history of the universe and investigate dark energy. Using two independent techniques, it will analyze thousands of Type Ia supernovae and independently probe the growth structure of the universe.
A new study by the University of Cincinnati finds that dark-skinned individuals are at a higher risk of dying from skin cancer due to its aggressive nature and delayed diagnosis. Despite having lower incidence rates, dark-skinned people are more likely to die from skin cancer, highlighting the need for increased awareness and preventio...
Soft Matter will separate from its host journal in January 2007, becoming an independent publication with a focus on interdisciplinary research. The move is expected to have far-reaching effects for the soft matter community.
Researchers have discovered the importance of white matter in the human brain using a new tool called Diffusion Tensor Imaging (DTI). This breakthrough has the potential to reveal the role of white matter connections in various neurological conditions. The findings may also raise ethical concerns about how this information is used.
Researchers found that caterpillars respond to variations in plant volatile production to reduce encounters with parasitic wasps. The study demonstrates that plant volatiles, rather than light, control the daily behavior of caterpillars.
A Cornell University study reveals that galaxies in the early universe tend to cluster near large clumps of dark matter. The research uses data from the Spitzer Wide-area InfraRed Extragalactic survey and confirms that ultraluminous infrared galaxies are precursors to galaxy clusters.
A study by the University of Texas Health Science Center at Houston has identified 5'-AMP as a key molecular mediator that switches mice from burning glucose to burning fat in response to darkness. This switch is also observed in active mammals, such as bears and humans, and may lead to new therapies for obesity and type 2 diabetes.
Researchers have charted a warp in the Milky Way's hydrogen gas layer, finding it vibrates like a drum due to interaction with dark matter. The Magellanic Clouds' passage through the dark matter halo creates a wake that enhances their gravitational influence on the disk.
Researchers found that dark chocolate improved arterial flow and reduced platelet activity, benefiting vascular health in smokers. A daily treat of 40g dark chocolate improved smoothness of arterial flow for eight hours.
Astronomers have created detailed maps of invisible dark matter in two young galaxy clusters, lending credence to the theory that galaxies form at dense regions of cosmic webs. The study used the Hubble Space Telescope's Advanced Camera for Surveys to overcome atmospheric turbulence and measure subtle gravitational lensing effects.
Researchers confirm that Einstein's cosmological constant behaves like dark energy, driving the acceleration of the universe. The study uses innovative imaging data from the Supernova Legacy Survey, which reveals a precision of 10% and challenges theoretical ideas about dark energy.
A team of researchers discovered that dark energy behaves similarly to Einstein's cosmological constant with a precision of 10%, contradicting several theoretical predictions. The study uses innovative camera technology and observations from multiple telescopes worldwide.
Researchers at UC Santa Barbara have successfully detected and studied 'dark' spins in diamond, a significant breakthrough in the development of room temperature quantum computing. The discovery could enable networks of spins to process information at the atomic level.
A recent study published in Nature refutes previous claims of missing dark matter in elliptical galaxies, suggesting that massive dark-matter halos are present around these galaxies as well. The research uses simulations of galaxy mergers to explain the observations made by earlier studies.
Researchers used simulations to show that dark matter halos are detectable in disk galaxies, but their absence in elliptical galaxies can be explained by the merger process. The study provides new insights into the formation and evolution of elliptical galaxies.
Physicists Eric Linder and Robert Caldwell separate dark energy scenarios through satellite searches, offering a way to distinguish among dark energy possibilities. The Joint Dark Energy Mission experiments may be able to determine which scenario is correct.
Researchers have created a method to monitor RNA synthesis and promoter activity in real-time within a single living cell. This breakthrough could help understand the role of RNA molecules in controlling gene expression and may lead to new discoveries in drug development and biology.
The Millennium Simulation uses sophisticated modeling techniques to recreate evolutionary histories for 20 million galaxies and supermassive black holes. The simulation demonstrates that a few massive black holes can form early enough to account for rare quasars, and provides a new tool for understanding the nature of dark energy.
A new study found that altering food schedules and light/dark exposure in mice modified the expression of circadian clock genes and genes involved in carcinogenesis and tumor progression. The authors conclude that the altered light/dark or feeding schedules may slow tumor growth in chronic jet-lagged mice.
Cosmologists propose that the universe's acceleration can be explained by inflationary theory, which generates cosmic ripples that drive expansion. This solution relies on Einstein's General Relativity and doesn't require new ingredients like dark energy.
A team of researchers has found evidence of dark energy in the universe's cosmic neighborhood, with billions of galaxies emerging from a sea of dark energy. The findings provide supporting evidence for the presence of dark energy, which is causing the universe to accelerate in expansion.
Astronomers have detected an invisible galaxy made mostly of dark matter for the first time using radio telescopes. The discovery was made by a British-led team and confirmed with the Arecibo telescope in Puerto Rico.
Researchers are exploring alternative explanations for dark energy, including the possibility of modified gravity laws and a multiverse. String theory suggests that the value of the cosmological constant may be very small, while another speaker proposes using
Dark energy drives universe expansion, but its effects are complex and not fully understood. String theory offers a potential explanation, suggesting the existence of 'pocket universes' with distinct physical laws.
University of Pennsylvania astrophysicist Licia Verde outlines a multi-disciplinary approach to studying dark energy. The investigation draws on data from galaxy surveys, supernovae, and the Cosmic Microwave Background, providing clues about this enigmatic component.
A new UCI study finds that men and women use different brain areas to achieve similar IQ results, with women having more white matter and men having more gray matter related to intellectual skill. The study suggests that human evolution has created two different types of brains designed for equally intelligent behavior.
The SDSS team detected ripples in the galaxy distribution made by sound waves, providing evidence that galaxies grew via gravity. The findings support the standard cosmological model and provide insights into dark matter and dark energy's properties.
A Yale astronomer and her colleagues used gravitational lensing techniques to create a spatial map demonstrating the clumped substructure of dark matter inside galaxy clusters. The study found an excellent agreement between observations and theoretical predictions, supporting the concordance model.
Astronomers have detected high-energy gamma rays emanating from the center of the Milky Way galaxy, sparking debate about the nature of these mysterious emissions. The observation suggests a giant supernova explosion as the possible source, which could accelerate cosmic gamma rays to unprecedented energies.
Researchers used NASA's MODIS instruments to study dark water patches off the Florida coast, detecting glowing phytoplankton blooms. The findings suggest a connection between rivers and the ocean ecosystem, highlighting the need for coordinated efforts to mitigate black water events.
The Quantum Universe report outlines nine fundamental questions in response to research funding agency requests, focusing on particle physics' role in understanding dark matter, dark energy, and more. The report emphasizes new knowledge from particle physics is needed to answer exciting scientific questions of this century.
Researchers propose a new theory linking neutrinos' slight mass to the accelerating universe expansion through dark energy and accelerons. The theory suggests that neutrinos interact with accelerons, resulting in a force that fuels the expansion of the universe.