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UrduNear-Earth asteroid data helps probe possible fifth force of the universe
Tag: dark matter
A model of holographic dark energy is no longer unstable
Scientists at BFU named after Kant Immanuel, doctor of Physics and Mathematics Artyom V. Astashenok and Alexander S. Tepliakov have proved the viability of a holographic dark energy model. Such model was considered unstable and therefore wasn’t widely used for describing the acceleration in the expansion of the Universe. The results of the research have been published in the Physics Letters B magazine.
‘Nowhere Near Done’ — UAlbany Physicists Hail Latest in Dark Matter Hunt
Physicists at the University at Albany hail the latest progress in the hunt for direct evidence of dark matter — believed to be a massive-but-so-far-invisible building block to the universe.
NASA’s Roman Space Telescope to Investigate Galactic Fossils
The universe may seem static, only capable of being captured in still frames, but that is far from the truth. It is actually ever-changing, just not on timescales clearly visible to humans. NASA’s upcoming Roman Space Telescope will bridge this gap in time, opening the way to the dynamic universe.
LZ Experiment Sets New Record in Search for Dark Matter
New results from the world’s most sensitive dark matter detector put the best-ever limits on particles called WIMPs, a leading candidate for what makes up our universe’s invisible mass.
Cerro Tololo captura deslumbrante cúmulo galáctico en Chile
La Cámara de Energía Oscura obtuvo esta increíble imagen del deslumbrante cúmulo de Coma Berenice, que en la antigüedad se le asoció a la historia del cabello perdido que la Reina Berenice II de Egipto ofreció a los dioses griegos como ofrenda por el retorno de su esposo de la guerra. Se trata de un conjunto de galaxias que no sólo es significativo para la mitología griega, sino también fue fundamental para el descubrimiento de la existencia de la materia oscura, cuando en 1937 el astrónomo suizo Fritz Zwicky, notó que las galaxias de este cúmulo se comportaban como si estuviesen bajo la influencia de enormes cantidades de materia invisible imposible de observar.
Queen Berenice II’s Hair Tied Together by Dark Matter
The Dark Energy Camera captures an image of the dazzling Coma Cluster, named after the hair of Queen Berenice II of Egypt. Not only significant in Greek mythology, this collection of galaxies was also fundamental to the discovery of the existence of dark matter. The theory emerged in 1937 when Swiss astronomer Fritz Zwicky noticed that the Coma Cluster galaxies behaved as if they were under the influence of vast amounts of unobservable ‘dark’ matter.
UAH researcher wins $750K EPSCoR grant to support STROBE-X explorations of gravitational wave sources, black holes and dark matter
Dr. Sukanya Chakrabarti at The University of Alabama in Huntsville (UAH) has won a $750,000 Established Program to Stimulate Competitive Research (EPSCoR) award to support STROBE-X, a planned $1 billion probe-class NASA observatory that aims to unlock the secrets of some of the most extreme conditions in the universe.
A million light years and still going
In a breakthrough discovery that challenges the conventional understanding of cosmology, scientists at Case Western Reserve University have unearthed new evidence that could reshape our perception of the cosmos.
Expanding the Hunt for Hidden Dark Matter Particles
Theoretical models of dark matter predict that its signals can be detected using low-background radiation detectors. By looking for specific types of dark matter and finding no signal, scientists operating the Majorana Demonstrator experiment have significantly narrowed the characteristics of potential dark matter particles. The results will help design future experiments.
Rubin Observatory Achieves Another Major Milestone: Reflective Coating of the 8.4-meter Primary/Tertiary Mirror
Vera C. Rubin Observatory’s successfully coats 8.4-meter primary/tertiary mirror in on-site coating chamber
UC Irvine astronomers’ simulations support dark matter theory
Computer simulations by astronomers support the idea that dark matter – matter that no one has yet directly detected but which many physicists think must be there to explain several aspects of the observable universe – exists, according to the researchers, who include those at the University of California, Irvine.
Observatorio Rubin revelará las huellas de la materia oscura en nuestra galaxia
Gracias a las imágenes que podrán ser obtenidas con seis filtros distintos montados en la cámara más grande construida para la astronomía, el Observatorio Vera C. Rubin estará en condiciones de descubrir los efectos de la interacción de la materia oscura con corrientes estelares nunca antes vistos en la Vía Láctea.
Rubin Observatory will Reveal Dark Matter’s Ghostly Disruptions of Stellar Streams
Glittering threads of stars around the Milky Way may hold answers to one of our biggest questions about the Universe: what is dark matter?
Charting the Night Sky with Exascale Computers
Creating multiple universes to see how they run might be tempting to scientists, but it’s obviously not possible. That is, as long as you need physical universes. If you can make do with virtual ones, there are far more options.
The Largest Digital Camera Ever Built for Astronomy Makes Its Debut
On screensaver mode, smart TVs often rotate through photos of natural wonders, from waterfalls to canyons. Now imagine hundreds of those televisions, with one single image spread out among them.
Scientists propose a new way to search for dark matter
In a new study, SLAC researchers suggest a small-scale solution could be the key to solving a large-scale mystery.
‘Junk DNA’ No More: Johns Hopkins Investigators Develop Method of Identifying Cancers from Repeat Elements of Genetic Code
Repeats of DNA sequences, often referred to as “junk DNA” or “dark matter,” that are found in chromosomes and could contribute to cancer or other diseases have been challenging to identify and characterize. Now, investigators at the Johns Hopkins Kimmel Cancer Center have developed a novel approach that uses machine learning to identify these elements in cancerous tissue, as well as in cell-free DNA (cfDNA) — fragments that are shed from tumors and float in the bloodstream. This new method could provide a noninvasive means of detecting cancers or monitoring response to therapy. Machine learning is a type of artificial intelligence that uses data and computer algorithms to perform complex tasks and accelerate research.
Testing the Evolution of the Universe with Galaxy Clusters
100 billion – there are at least that many stars in our Milky Way. It seems like an unimaginable number. Yet astrophysicists study structures in our universe that are far bigger than galaxies alone.
Physicists embark on six-year hunt for dark matter particle
This DarkQuantum consortium was awarded €12.9 million on October 26 by the European Research Council, of which roughly €2 million is set aside for Aalto University researchers.
Department of Energy Announces $137 Million for Research on High Energy Physics
Today, the U.S. Department of Energy (DOE) announced $137 million in funding for 80 projects in high energy physics. The scope of the research spans the full gamut of topics in experimental and theoretical high energy physics.
Finding explanation for Milky Way’s warp
The Milky Way is often depicted as a flat, spinning disk of dust, gas, and stars. But if you could zoom out and take an edge-on photo, it actually has a distinctive warp — as if you tried to twist and bend a vinyl LP.
Pulsars may make dark matter glow
The central question in the ongoing hunt for dark matter is: what is it made of? One possible answer is that dark matter consists of particles known as axions.
New cosmological constraints on the nature of dark matter
New research has revealed the distribution of dark matter in never before seen detail, down to a scale of 30,000 light-years. The observed distribution fluctuations provide better constraints on the nature of dark matter.
Direct evidence for modified gravity at low acceleration from Gaia observations of wide binary stars
A new study reports conclusive evidence for the breakdown of standard gravity in the low acceleration limit from a verifiable analysis of the orbital motions of long-period, widely separated, binary stars, usually referred to as wide binaries in astronomy and astrophysics.
Dark SRF experiment at Fermilab demonstrates ultra-sensitivity for dark photon searches
Scientists working on the Dark SRF experiment at the U.S. Department of Energy’s Fermi National Accelerator Laboratory have demonstrated unprecedented sensitivity in an experimental setup used to search for theorized particles called dark photons.
Exploring dark matter and the first bright galaxies simultaneously: 21-cm forest probe may unlock secrets of early universe
The mystery of the first galaxies of the universe is an indomitable urge of human beings.
El Estudio de la Energía Oscura: Revelando lo invisible
El Estudio de la Energía Oscura (también conocido en inglés como Dark Energy Survey) fue un programa de observación de seis años diseñado para explorar el cosmos con el fin de comprender mejor la energía oscura, un concepto complejo que se desarrolló cuando los científicos se dieron cuenta de que el Universo parecía estar rompiendo sus propias leyes de la física –supuestamente inmutables. Pero, ¿cómo se observa algo que no se ve? ¿Y por qué los científicos están tan convencidos de que realmente hay algo que buscar?
The Dark Energy Survey: Uncovering the Invisible
The Dark Energy Survey was a six-year observing program designed to survey the skies in order to better understand dark energy — a complex concept that developed when scientists realized that the Universe seemed to be breaking its own supposedly immutable laws of physics. But how do you observe something that cannot be seen? And why are scientists so convinced that there is really something to search for?
Einstein and Euler put to the test at the edge of the Universe
The cosmos is a unique laboratory for testing the laws of physics, in particular those of Euler and Einstein. Euler described the movements of celestial objects, while Einstein described the way in which celestial objects distort the Universe.
First SuperCDMS detector towers journey from SLAC to SNOLAB
After years of pioneering work, researchers at the Department of Energy’s SLAC National Accelerator Laboratory have completed the detector towers that will soon sit at the heart of the SuperCDMS SNOLAB dark matter detection experiment.
First-of-its-kind measurement of the Universe’s expansion rate weighs in on a longstanding debate in physics and astronomy
A University of Minnesota Twin Cities-led team used a first-of-its-kind technique to measure the expansion rate of the Universe, providing insight that could help more accurately determine the Universe’s age and help physicists and astronomers better understand the cosmos.
Mapping Dark Matter Like Never Before
A new groundbreaking image from one of the world’s most powerful telescopes that reveals the most detailed map of dark matter distributed across one quarter of the sky, and deep into the cosmos, offers scientists a perspective that may lead to new methods to demystify dark matter. The research that led to the image, completed by the Atacama Cosmology Telescope (ACT) collaboration, also provides further support to Einstein’s theory of general relativity, which has been the foundation of the standard model of cosmology for more than a century.
Rachel Mandelbaum: Then and Now / 2012 Early Career Award Winner
Rachel Mandelbaum prepares to measure weak gravitational lensing, the tiny deflections of light from distant galaxies due to the gravitational influence of dark matter and visible matter that the light rays pass by on their way to Earth. Those measurements can help answer fundamental questions.
Unusual atom helps in search for Universe’s building blocks
An unusual form of caesium atom is helping a University of Queensland-led research team unmask unknown particles that make up the Universe.
Space and time: Clocks to detect dark matter
Researchers have proposed a plan to send two atomic clocks deep into space to search for ultralight dark matter, with the goal of better understanding the universe.
The Most Precise Accounting Yet of Dark Energy and Dark Matter
Analyzing more than two decades’ worth of supernova explosions convincingly bolsters modern cosmological theories and reinvigorates efforts to answer fundamental questions.
Astronomers create new technique to assist in search for dark matter
Meteors may help astronomers devise a new way to locate dark matter – mysterious and invisible particles that have so far only been discerned by the effect they have on the natural world.
New Superconducting Qubit Testbed Benefits Quantum Information Science Development
A new testbed facility capable of testing superconducting qubit fidelity in a controlled environment free of stray background radiation will benefit quantum information sciences and the development of quantum computing.
Researchers at SLAC use purified liquid xenon to search for mysterious dark matter particles
An enormous vat of pure liquid xenon will help scientists at SLAC and around the globe learn more about the universe.
Scientists Take Another Theoretical Step to Uncovering the Mystery of Dark Matter, Black Holes
A study by a team of scientists including three from Stony Brook University proposes a novel method to search for new particles not currently contained in the standard model of particle physics. Their method, published in Nature Communications, could shed light on the nature of dark matter.
No Trace of Dark Matter Halos
Dwarf galaxies are small, faint galaxies that can usually be found in galaxy clusters or near larger galaxies.
Scientists reveal distribution of dark matter around galaxies 12 billion years ago–further back in time than ever before
A collaboration led by scientists at Nagoya University in Japan has investigated the nature of dark matter surrounding galaxies seen as they were 12 billion years ago, billions of years further back in time than ever before.
Halos and dark matter: A recipe for discovery
About three years ago, Wolfgang “Wolfi” Mittig and Yassid Ayyad went looking for the universe’s missing mass, better known as dark matter, in the heart of an atom.
Their expedition didn’t lead them to dark matter, but they still found something that had never been seen before, something that defied explanation. Well, at least an explanation that everyone could agree on.
Department of Energy Announces $78 Million for Research in High Energy Physics
Today, the U.S. Department of Energy (DOE) announced $78 million in funding for 58 research projects that will spur new discoveries in high energy physics. The projects—housed at 44 colleges and universities across 22 states—are exploring the fundamental science about the universe that also underlies technological advancements in medicine, computing, energy technologies, manufacturing, national security, and more.
Revealing the Secret Language of Dark Matter
In the Universe, dark matter and standard matter “talk” to each other using a secret language.
Carter Hall: Then and Now / 2011 Early Career Award Winner
Carter Hall works with colleagues around the world to search for ancient relic particles from the Big Bang, using the LUX and LZ dark matter detectors at the Sanford Underground Research Facility in Lead, SD.
Astrophysicists Reveal Largest-Ever Suite of Universe Simulations
To understand how the universe formed, astronomers have created AbacusSummit, more than 160 simulations of how gravity may have shaped the distribution of dark matter.
DOE Invests $93 Million for New Discoveries in High Energy Physics
The U.S. Department of Energy (DOE) today announced $93 million in funding for 71 research projects that will spur new discoveries in High Energy Physics.
Mystery of Galaxy’s Missing Dark Matter Deepens
Hubble astronomers say they confirmed that an oddball
galaxy mysteriously lacks dark matter—the glue that holds stars and gas together in galaxies. This confirmation challenges the standard ideas of how researchers think galaxies work.