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Current Cosmic Rays News and Events, Cosmic Rays News Articles.
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New X-ray space observatory to study black holes and history of galaxy clusters
Black hole enthusiasts, galaxy cluster aficionados, and X-ray astronomers have much to be excited about. On Friday, Feb. 12, the Japan Aerospace Exploration Agency will be launching their sixth satellite dedicated to X-ray astronomy, ASTRO-H, from the Tanegashima Space Center in Kagoshima, Japan. The observatory carries a state-of-the-art instrument and two telescope mirrors built at NASA's Goddard Space Flight Center in Greenbelt, Maryland. The launch is scheduled at 3:45 a.m. EST. (2016-02-10)

Twisted X-rays unravel the complexity of helical structures
Since the discovery of the diffraction of X-rays by crystals just over 100 years ago, X-ray diffraction as a method of structure determination has dominated structural research in materials science and biology. However, many of the most important materials whose structures remain unknown do not readily crystallize as three-dimensional periodic structures. (2016-02-09)

Galactic center's gamma rays unlikely to originate from dark matter, evidence shows
Studies by two independent groups from the US and the Netherlands have found that gamma ray signals from the inner galaxy come from a new source rather than from the collision of dark matter particles. The new source is likely to be rapidly rotating pulsars, rather than the as-yet undetected invisible dark matter particles thought to make up 85 percent of the mass in the Universe. (2016-02-03)

Researchers examine the unintentional effects of different fishing hooks and bait on sharks and rays
By examining relevant studies related to fishing in the open ocean, researchers have found that while using circle instead of J-shaped hooks and fish instead of squid for bait may avoid harm to sea turtles, dolphins, certain whales, and possibly seabirds, it may increase the catch and injury of some sharks and rays. (2016-01-27)

The Milky Way's clean and tidy galactic neighbor
Many galaxies are chock-full of dust, while others have occasional dark streaks of opaque cosmic soot swirling in amongst their gas and stars. However, the subject of this new image, snapped with the OmegaCAM camera on ESO's VLT Survey Telescope in Chile, is unusual -- the small galaxy, named IC 1613, is a veritable clean freak! IC 1613 contains very little cosmic dust, allowing astronomers to explore its contents with great clarity. (2016-01-27)

Galaxy cluster environment not dictated by its mass alone
For the first time, an international team of researchers has found that the connection between a galaxy cluster and surrounding dark matter is not characterized solely by the mass of clusters, but also by their formation history. (2016-01-25)

Theorists propose a new method to probe the beginning of the universe
How did the universe begin? And what came before the Big Bang? Cosmologists have asked these questions ever since discovering that our universe is expanding. The answers aren't easy to determine. The beginning of the cosmos is cloaked and hidden from the view of our most powerful telescopes. Yet observations we make today can give clues to the universe's origin. New research suggests a novel way of probing the beginning of space and time to determine which of the competing theories is correct. (2016-01-25)

New theory aids search for universe's origin
In a new study, scientists from The University of Texas at Dallas and their colleagues suggest a novel way for probing the beginning of space and time, potentially revealing secrets about the conditions that gave rise to the universe. (2016-01-25)

Dazzling diamonds
Single stars are often overlooked in favor of their larger cosmic cousins -- but when they join forces, they create truly breathtaking scenes to rival even the most glowing of nebulae or swirling of galaxies. This NASA/ESA Hubble Space Telescope image features the star cluster Trumpler 14. One of the largest gatherings of hot, massive and bright stars in the Milky Way, this cluster houses some of the most luminous stars in our entire galaxy. (2016-01-21)

NASA-funded balloon launches to study sun
On Jan. 18, 2016, the GRIPS balloon team sent their instrument soaring towards the stratosphere above Antarctica, suspended underneath a helium-filled, football-field sized scientific balloon. GRIPS, short for Gamma-Ray Imager/Polarimeter for Solar flares, is studying extremely high-energy radiation released by solar flares. (2016-01-19)

Patients with high health insurance deductibles use fewer imaging tests
In the first nationwide study to directly address the associations between high-deductible insurance plans and the use of diagnostic imaging, researchers including Kimberley Geissler at the University of Massachusetts Amherst found that patients enrolled in such health plans use about 7.5 percent fewer diagnostic tests such as MRI, X-rays and CT scans, than patients without such plans. Details appear in an early online edition of Medical Care. (2016-01-14)

Green pea galaxy provides insights to early universe evolution
Astronomers gain a new understanding of the re-ionization of the universe by studying a nearby dwarf 'green pea' galaxy. (2016-01-13)

The post Big Bang revelead
One billion year after the Big Bang, the Universe is observed to be reheated, and hydrogen is again ionize. How has this important transformation, named cosmic reionization, been possible? Astronomers have long thought that galaxies were responsible for this phenomenon. Today, researchers have largely validated this hypothesis. They have indeed discovered a compact galaxy emitting a large number of ionizing photons, which are responsible for this transformation of the Universe. (2016-01-13)

NASA's Fermi Space Telescope sharpens its high-energy vision
Major improvements to methods used to process observations from NASA's Fermi Gamma-ray Space Telescope have yielded an expanded, higher-quality set of data that allows astronomers to produce the most detailed census of the sky yet made at extreme energies. (2016-01-07)

Student-built experiment integrated onto NASA's OSIRIS-REx mission
A student-built experiment aboard NASA's Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) mission has been integrated onto the spacecraft. (2016-01-07)

Last meal reflects spiral-shaped intestine
A last meal provides new insights: The fossilized food remains of the extinct predatory fish Saurichthys reflect its spiral-shaped intestine. The spiral valve in fossils from Southern Switzerland is similar to that of sharks and rays. Paleontologists from the University of Zurich have thus closed a gap in the knowledge concerning the evolution of the gastrointestinal tract in vertebrates. (2016-01-06)

'Seeing' black holes with a home-use telescope
An international research team reports that the activity of black holes can be observed as visible light during outbursts, and that flickering light emerging from gases surrounding black holes is a direct indicator of this. The team's results, published in Nature, indicate that optical rays and not just X-rays provide reliable observational data for black hole activity. (2016-01-06)

Mysterious radio signals from space are much better test of Einstein's General Relativity
A new way to test one of the basic principles underlying Einstein's theory of General Relativity using brief blasts of rare radio signals from space called Fast Radio Bursts is 10 to 100 times better than previous testing methods that used gamma-ray bursts. The research, published in the journal Physical Review Letters, is highlighted as an 'Editor's Suggestion' due to 'its particular importance, innovation, and broad appeal,' according to the journal's editors. (2015-12-30)

A new metamaterial will speed up computers
A team of scientists from the Moscow Institute of Physics and Technology and the Landau Institute for Theoretical Physics in the Russian Academy of Sciences has proposed a two-dimensional metamaterial composed of silver elements, that refracts light in an unusual way. The research has been published on Nov. 18, 2015, in Optical Materials Express. In the future, these structures will be able to be used to develop compact optical devices, as well as to create an 'invisibility cloak.' (2015-12-28)

X-ray vision? Laser-derived X-ray method finds hidden nuclear materials
In proof-of-principle experiments, University of Nebraska-Lincoln scientists used a laser-driven X-ray source to produce an image of a uranium disk no bigger than a stack of three nickels, hidden between 3-inch steel panels. (2015-12-21)

The transformation of cancer imaging: From shades of gray to living color
A new technology called spectral (color) computed tomography, or spectral CT, is not only on the horizon, but it is also on the University of Notre Dame's campus, where researchers are giving the phrase 'in living color' a new meaning. (2015-12-18)

New Exeter research boosts antibiotic hope
A study led by Dr. Nicholas Harmer, Senior Lecturer in Structural Biochemistry at the University of Exeter, published today in the journal Chemistry and Biology, provides new information about the way bacterial cells build up a defensive sugar coating and how that process can be interrupted. (2015-12-17)

Gamma rays from distant galaxy tell story of an escape
A flare of very high-energy gamma rays emitted from a galaxy halfway across the universe has put new bounds on the amount of background light in the universe and given astrophysicists clues to how and where such gamma rays are produced. (2015-12-15)

VERITAS detects gamma rays from galaxy halfway across the visible universe
In April 2015, after traveling for about half the age of the universe, a flood of powerful gamma rays from a distant galaxy slammed into Earth's atmosphere. That torrent generated a cascade of light -- a shower that fell onto the waiting mirrors of the Very Energetic Radiation Imaging Telescope Array System (VERITAS) in Arizona. The resulting data have given astronomers a unique look into that faraway galaxy and the black hole engine at its heart. (2015-12-15)

Quasar outburst revises understanding of universe, quasars
An outburst from a distant quasar known as PKS 1441+25 in April of this year gave astronomers at the gamma-ray telescope VERITAS an opportunity to measure the density of the optical 'fog' that lies between the quasar and Earth and to deduce the surprising separation of the high-energy emission from the black hole that drives it. (2015-12-15)

East Antarctic Ice Sheet has stayed frozen for 14 million years, Penn team reports
In a new study in Scientific Reports, University of Pennsylvania researchers use an innovative technique to date one of Antarctica's ancient lake deposits. They found that the deposits have remained frozen for at least the last 14 million years, suggesting that the surrounding region, the East Antarctic Ice Sheet, or EAIS, has likewise remained intact. (2015-12-15)

LSU physicist celebrates expansion of international agreement at Auger Observatory
LSU Physicist James Matthews and an international team of scientists are reconstructing the path of the universe's most energetic cosmic rays, bringing new insights into the origin and nature of this intergalactic phenomenon. A founding member of the worldwide research collaboration at the Pierre Auger Observatory in Argentina, Matthews is celebrating 15 years of achievement at the observatory and the extension of a new international agreement that will allow this work to continue for the next 10 years. (2015-12-15)

New results from LUX
The world's most sensitive dark matter detector gets better, thanks to a team effort at UCSB. (2015-12-15)

NASA's Fermi satellite kicks off a blazar-detecting bonanza
A long time ago in a galaxy half the universe away, a flood of high-energy gamma rays began its journey to Earth. Observations provide a surprising look into the environment near a supermassive black hole at the galaxy's center and offer a glimpse into the state of the cosmos 7 billion years ago. (2015-12-15)

The XXL Survey: First results
Astronomy & Astrophysics is publishing a special feature on the first results of the XXL Survey. XXL is a large survey of the X-ray sky with the XMM-Newton ESA observatory. Its goal is to detect a few hundreds of clusters at a look-back time when the age of the Universe was about half its present value (z~1). (2015-12-15)

Low levels of vitamin D may increase risk of stress fractures in active individuals
Vitamin D plays a crucial role in ensuring appropriate bone density. Active individuals who enjoy participating in higher impact activities may need to maintain higher vitamin D levels to reduce their risk of stress fractures, report investigators in The Journal of Foot & Ankle Surgery. (2015-12-14)

World first in imaging technology developed at Lawson
Scientists at Lawson Health Research Institute, in collaboration with Ceresensa Inc., have produced the first commercial imaging product available in the world for PET/MRI scanners. The novel PET-transparent MRI head coil provides unparalleled images to advance the study, diagnosis and treatment of a wide range of diseases. (2015-12-08)

DXL-2: Studying X-ray emissions in space
On Dec. 4, 2015, NASA will launch the DXL-2 payload at 11:45 p.m. EST, from the White Sands Missile Range in New Mexico to continue the study of Diffuse x-ray emissions. (2015-12-03)

Fermi-type acceleration of interstellar ions driven by high-energy lepton plasma flows
The origin of high-energy cosmic-rays from a wide variety of high energy astrophysical sources is a fundamental problem in astrophysics and has been attracting significant interest for over six decades. Many analytical or numerical models have been proposed in order to figure out physical conditions for the well-known Fermi acceleration mechanisms to occur. Now researchers have identified a simple case when the two Fermi acceleration mechanisms develop sequentially based upon large scale numerical simulations. (2015-12-02)

What is the universe made of?
Matter known as ordinary corresponds to only 5 percent of the Universe. Numerical simulations made it possible to predict that the rest of this ordinary matter should be located in the large-scale structures that form the 'cosmic web'. A team led by the University of Geneva observed this phenomenon. The research shows that the majority of the missing ordinary matter is found in the form of a very hot gas associated with intergalactic filaments. (2015-12-02)

Fast radio burst hints at its source
Scientists have detected a burst of radio waves from six billion light years away, one of a handful they've discovered in the past decade -- and this time they have clues about its source. (2015-12-02)

'Fast radio burst' sheds new light on origin of these extreme events
A team of astronomers using the Green Bank Telescope uncovered the most detailed record ever of an FRB. (2015-12-02)

Research team finds detailed record of mysterious fast radio burst
By poring over 650 hours of archival data from the National Science Foundation's Green Bank Telescope, a team of astronomers, including Carnegie Mellon University's Jeffrey Peterson and Hsiu-Hsien Lin, has uncovered the most detailed record ever of a Fast Radio Burst. The group's research indicates that the burst originated inside a highly magnetized region of space, possibly linking it to a recent supernova or the interior of an active star-forming nebula. (2015-12-02)

Danes' vitamin D levels are determined by their genes
Certain genetic variations increase the risk of having a lower level of vitamin D. This is the finding of a Ph.D. project from the National Food Institute, Technical University of Denmark, which has examined the effect of eating vitamin D fortified foods or receiving artificial UVB irradiation during the winter months. (2015-12-02)

Xbox gaming technology may improve X-ray precision
With the aim of producing high-quality X-rays with minimal radiation exposure, particularly in children, researchers have developed a new approach to imaging patients based on the Xbox gaming system. Using proprietary software developed for the Microsoft Kinect system, researchers at Washington University School of Medicine in St. Louis have adapted hands-free technology used for the popular Xbox system to aid radiographers when taking X-rays. (2015-12-01)

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