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Preview: Brightsurf Science News :: Dark Matter News

Dark Matter Current Events and Dark Matter News from Brightsurf

Dark Matter Current Events and Dark Matter News Events, Discoveries and Articles from Brightsurf

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On second thought, the Moon's water may be widespread and immobile

Fri, 23 Feb 18 00:05:00 -0800

A new analysis of data from two lunar missions finds evidence that the Moon's water is widely distributed across the surface and is not confined to a particular region or type of terrain.

Decoding the structure of huntingtin

Thu, 22 Feb 18 00:00:40 -0800

Determining the three dimensional structure of the protein could help to develop new treatments of Huntington's disease.

Improved Hubble yardstick gives fresh evidence for new physics in the universe

Thu, 22 Feb 18 00:13:30 -0800

Astronomers have used NASA's Hubble Space Telescope to make the most precise measurements of the expansion rate of the universe since it was first calculated nearly a century ago. Intriguingly, the results are forcing astronomers to consider that they may be seeing evidence of something unexpected at work in the universe.

UMass Amherst physicists contribute to dark matter detector success

Wed, 21 Feb 18 00:13:30 -0800

This week, scientists from around the world who gathered at UCLA at its Dark Matter 2018 Symposium learned of new results in the search for evidence of the elusive material in Weakly Interacting Massive Particles (WIMPs) by the DarkSide-50 detector. WIMPs have been candidate dark matter particles for decades, but none have been found to date. Andrea Pocar of UMass Amherst says the DarkSide detector his group helped to build has demonstrated the great potential of liquid argon technology in the search for WIMPs.

A winning personality might play a major role in China's apparel industry

Wed, 21 Feb 18 00:08:20 -0800

In China, business relationships rely on the long-lasting culture of guanxi, a mixture of personal and public relationships that affect all individuals and organizations. Now, researchers from the University of Missouri have found that personality traits associated with guanxi might contribute to the overall performance of new business ventures in the Chinese apparel industry.

How political parties influence our beliefs, and what we can do about it

Tue, 20 Feb 18 00:11:50 -0800

Fake news is everywhere, but why we believe it is still unclear. Drawing on neuroeconomics research in an Opinion published in Trends in Cognitive Sciences, psychologists suggest that valuing our identity more than our accuracy is what leads us to accept incorrect information that aligns with our political party's beliefs. This value discrepancy can explain why high-quality news sources are no longer enough--and understanding it can help us find strategies to bridge the political divide.

FEFU-based scientists studied the exhaust gases of motorcycles, scooters, and ATVs

Tue, 20 Feb 18 00:10:50 -0800

An analytical article based on the study of morphologic and chemical composition of particulate matter in motorcycle engine exhaust was published in the respected scientific journal Toxicology Reports. The group of authors was supervised by Aristidis Tsatsakis, a foreign member of the Russian Academy of Sciences and Doctor Honoris Causa of the Far Eastern Federal University, and Kirill Golokhvast, doctor of biology and Provost for Research at FEFU. The study was supported with a grant of the Russian Science Foundation.

Pulsating Aurora mysteries uncovered with help from NASA's THEMIS mission

Tue, 20 Feb 18 00:01:20 -0800

The precise mechanism driving pulsating auroras, long unknown, has now been identified with help from NASA's THEMIS mission.

Astronomers reveal secrets of most distant supernova ever detected

Mon, 19 Feb 18 00:05:20 -0800

An international team of astronomers led by the University of Southampton has confirmed the discovery of the most distant supernova ever detected -- a huge cosmic explosion that took place 10.5 billion years ago, or three-quarters the age of the Universe itself.

Personalized curriculum captures students' imagination, interest

Sat, 17 Feb 18 00:04:40 -0800

Focusing on their personal DNA and genealogies, middle school students appear to have learned as much as their peers who used case studies, according to a Penn State researcher.

ASU professor Davies addresses why we have yet to find extraterrestrial life

Fri, 16 Feb 18 00:01:50 -0800

Are we alone in the universe? Few questions have captured the public imagination more than this. Yet to date we know of just one sample of life, that which exists here on Earth. Arizona State University Regents Professor and noted cosmologist Paul Davies will talk about efforts to identify extraterrestrial life at a press briefing Feb. 16 at the annual meeting of the American Association for the Advancement of Science in Austin, Texas.

Study dispels notion social media displaces human contact

Thu, 15 Feb 18 00:03:10 -0800

Echoing concerns that grew with the World Wide Web itself a decade earlier, the rise of social media has stoked fears of 'social displacement' -- the alienation of people from friends and family in favor of Facebook and Twitter. A new study co-authored by a University of Kansas professor goes a fair distance toward debunking that notion.

Hubble sees Neptune's mysterious shrinking storm

Thu, 15 Feb 18 00:06:20 -0800

Three billion miles away on the farthest known major planet in our solar system, an ominous, dark storm - once big enough to stretch across the Atlantic Ocean from Boston to Portugal - is shrinking out of existence as seen in pictures of Neptune taken by NASA's Hubble Space Telescope.

Physicists create new form of light

Thu, 15 Feb 18 00:07:40 -0800

MIT and Harvard physicists have created a new form of light that could enable quantum computing with photons.

Everyday activities associated with more gray matter in brains of older adults

Wed, 14 Feb 18 00:14:20 -0800

Higher levels of lifestyle physical activity are associated with more gray matter in the brains of older adults, according to a Rush University Medical Center study published in the Journal of Gerontology: Psychological Sciences.

Remote jets are clearer now

Wed, 14 Feb 18 00:00:20 -0800

The hypothesis that was put to the test in the study states that jet power depends on the magnetic flux and the rotation rate of the black hole. Scientists have come up with the model that can estimate the amount of energy lost by the black hole due to the slowing down of its rotation.

The search for dark matter: Axions have ever fewer places to hide

Wed, 14 Feb 18 00:03:40 -0800

If they existed, axions -- one of the candidates for particles of the mysterious dark matter -- could interact with the matter forming our world, but they would have to do this to a much, much weaker extent than it has seemed up to now. New, rigorous constraints on the properties of axions have been imposed by an international team of scientists responsible for the nEDM experiment.

Poor fitness linked to weaker brain fiber, higher dementia risk

Wed, 14 Feb 18 00:09:30 -0800

Scientists have more evidence that exercise improves brain health and could be a lifesaving ingredient that prevents Alzheimer's disease.

Milky Way ties with neighbor in galactic arms race

Wed, 14 Feb 18 00:10:30 -0800

Astronomers have discovered that our nearest big neighbor, the Andromeda galaxy, is roughly the same size as the Milky Way. It had been thought that Andromeda was two to three times the size of the Milky Way, and that our own galaxy would ultimately be engulfed by our bigger neighbor. But the latest research, published today, evens the score between the two galaxies.

Several Berkeley Lab scientists to present talks at 2018 AAAS Annual Meeting

Mon, 12 Feb 18 00:12:20 -0800

Several scientists from the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) will present talks at the annual meeting of the American Association for the Advancement of Science, to be held Feb. 15 - 19 in Austin, Texas. Topics include a new model for science innovation, new ways to search for dark matter, and developments in advanced bioenergy.

Study finds gender and skin-type bias in commercial artificial-intelligence systems

Mon, 12 Feb 18 00:00:30 -0800

A new paper from the MIT Media Lab's Joy Buolamwini shows that three commercial facial-analysis programs demonstrate gender and skin-type biases, and suggests a new, more accurate method for evaluating the performance of such machine-learning systems.

Cosmic x-rays may provide clues to the nature of dark matter

Thu, 08 Feb 18 00:01:30 -0800

Researchers at Johannes Gutenberg University Mainz in Germany have presented a novel theory of dark matter, which implies that dark matter particles may be very different from what is normally assumed. In particular, their theory involves dark matter particles which are extremely light -- almost one hundred times lighter than electrons, in stark contrast to many conventional models that involve very heavy dark matter particles instead.

Better knowledge of evolution leads to greater acceptance of the concept

Wed, 07 Feb 18 00:16:20 -0800

Prevailing theories about evolution state that belief in the concept is tied only to a person's politics or religion. But according to new research from the University of Pennsylvania, whether Americans accept or reject the subject also depends on how well they understand it.

HINODE captures record breaking solar magnetic field

Tue, 06 Feb 18 00:08:30 -0800

Astronomers at the National Astronomical Observatory of Japan (NAOJ) using the HINODE spacecraft observed the strongest magnetic field ever directly measured on the surface of the Sun. Analyzing data for 5 days around the appearance of this record breaking magnetic field, the astronomers determined that it was generated as a result of gas outflow from one sunspot pushing against another sunspot.

40-year controversy in solid-state physics resolved

Tue, 06 Feb 18 00:14:50 -0800

An international team at BESSY II headed by Prof. Oliver Rader has shown that the puzzling properties of samarium hexaboride do not stem from the material being a topological insulator, as it had been proposed to be. Theoretical and initial experimental work had previously indicated that this material, which becomes a Kondo insulator at very low temperatures, also possessed the properties of a topological insulator. The team has now published a compelling alternative explanation in Nature Communications, however.

Half of all dementias start with damaged 'gatekeeper cells'

Mon, 05 Feb 18 00:11:20 -0800

USC research sheds new light on how a breakdown in the brain's vascular system predates the accumulation of toxic plaques and tangles in the brain that bring about Alzheimer's disease. The research suggests an earlier target for preventing dementia and Alzheimer's. Nearly 50 percent of all dementias, including Alzheimer's, begins with the breakdown of the smallest blood vessels in the brain and their protective

Lobachevsky University scientists synthesize a new compound with anti-tumor properties

Fri, 02 Feb 18 00:14:50 -0800

A research team of the UNN Faculty of Chemistry led by Professor Alexei Fedorov has developed and synthesized a new multifunctional compound that possesses anti-tumor properties that are due to several independent effects. The active compound is a conjugate of a photoactive organic dye (photosensitizer), a derivative responsible for selective delivery of the medicine to tumor tissues and targeted therapy (biological vector), a linker, and special groups that increase the water solubility of the entire compound.

Natural telescope sets new magnification record

Fri, 02 Feb 18 00:01:40 -0800

An international team of astronomers, led by Harald Ebeling of the Institute for Astronomy at the University of Hawaii at Manoa, has discovered one of the most extreme instances of magnification by gravitational lensing. Using the Hubble Space Telescope to survey a sample of huge clusters of galaxies, the team found a distant galaxy, eMACSJ1341-QG-1, that is magnified 30 times thanks to the distortion of space-time created by the massive galaxy cluster dubbed eMACSJ1341.9-2441.

Astronomy: A rotating system of satellite galaxies raises questions

Thu, 01 Feb 18 00:05:30 -0800

Astronomers have examined the distribution and movement of dwarf galaxies in the constellation Centaurus, but their observations do not fit with the standard model of cosmology that assumes the existence of dark matter. The international team of researchers led by the University of Basel reported their findings in the journal Science.

Surprise: Satellite galaxies of Centaurus A are on a coordinated dance

Thu, 01 Feb 18 00:05:10 -0800

The satellite dwarf galaxies orbiting around the much larger galaxy Centaurus A are rotating in synchrony around their host, to researchers' surprise.

Distant galaxy group contradicts common cosmological models, simulations

Thu, 01 Feb 18 00:04:40 -0800

An international team of astronomers has determined that Centaurus A, a massive elliptical galaxy 13 million light-years from Earth, is accompanied by a number of dwarf satellite galaxies orbiting the main body in a narrow disk. In a paper published today in Science, the researchers note that this is the first time such a galactic arrangement has been observed outside the Local Group, home to the Milky Way.

New study challenges popular theory about dwarf galaxies

Thu, 01 Feb 18 00:04:10 -0800

A new international study involving The Australian National University (ANU) has found a plane of dwarf galaxies orbiting around Centaurus A in a discovery that challenges a popular theory about how dwarf galaxies are spread around the Universe.

Shedding light on arctic zooplankton in the dark

Thu, 01 Feb 18 00:03:30 -0800

We know that tiny marine creatures in the Arctic respond to weak light from the Moon or the Northern Lights during the polar night. Now researchers have learned that artificial light from research vessels can also have a negative effect.

Glory from gloom

Wed, 31 Jan 18 00:06:20 -0800

A dark cloud of cosmic dust snakes across this spectacular wide field image, illuminated by the brilliant light of new stars. This dense cloud is a star-forming region called Lupus 3, where dazzlingly hot stars are born from collapsing masses of gas and dust. This image was created from images taken using the VLT Survey Telescope and the MPG/ESO 2.2-metre telescope and is the most detailed image taken so far of this region.

Confirmed: Black holes regulate star formation in massive galaxies

Wed, 31 Jan 18 00:10:30 -0800

An International team with participation by researchers with close links to the IAC, obtains the first clear observational evidence that the mass of the supermassive central black hole in a massive galaxy affects the formation of new stars during its lifetime.

CALIFA renews the classification of galaxies

Wed, 31 Jan 18 00:11:40 -0800

This project, in which the Instituto de Astrofísica de Canarias (IAC) is collaborating, has made a map with 300 galaxies close to the Milky Way, which they have classified on the basis of the way the stars are moving, rather than using the morphological classification used until now.

How black holes shape the cosmos

Wed, 31 Jan 18 00:07:20 -0800

Astrophysicists from Germany and the USA gained new insights into the formation and evolution of galaxies. They calculated how black holes influence the distribution of dark matter, how heavy elements are produced and distributed throughout the cosmos, and where magnetic fields originate. This was possible by developing and programming a new simulation model for the universe, which created the most extensive simulations of this kind to date.

New universe simulation prompts breakthrough discoveries in astrophysics

Wed, 31 Jan 18 00:07:00 -0800

Novel computational methods have helped create the most information-packed, universe-scale simulation ever produced. The new tool provides fresh insights into how black holes influence the distribution of dark matter, how heavy elements are produced and distributed throughout the cosmos, and where magnetic fields originate.

It's not how you play the game, but how the dice were made

Tue, 30 Jan 18 00:02:30 -0800

Over time, dice used in playing games have changed in shape and size and evolved with considerations about fairness, chance and probability.

Stellar magnetism: What's behind the most brilliant lights in the sky?

Tue, 30 Jan 18 00:03:10 -0800

Space physicists at University of Wisconsin-Madison have just released unprecedented detail on a bizarre phenomenon that powers the northern lights, solar flares and coronal mass ejections (the biggest explosions in our solar system).

Particle collision in large accelerators is simulated by using a quantum computer

Fri, 26 Jan 18 00:02:30 -0800

In 2011 the UPV/EHU's QUTIS Group published in the Physical Review Letters an innovative theoretical proposal to reproduce particle collisions like those taking place in large accelerators but without having to use these huge infrastructures. Now, with the collaboration of the laboratory of Prof Kihwan Kim of the University of Tsinghua in Beijing they have confirmed the validity of the proposal by using a trapped-ion quantum simulator. This has been reported in Nature Communications.

Chasing dark matter with the oldest stars in the Milky Way
Just how quickly is the dark matter near Earth zipping around? The speed of dark matter has far-reaching consequences for modern astrophysical research, but this fundamental property has eluded researchers for years. In a paper published Jan. 22 in the journal Physical Review Letters, Princeton researchers provided the first clue: The solution to this mystery, it turns out, lies among some of the oldest stars in the galaxy.