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UO plays key role in LIGO's new view of a cosmic event
An international team of physicists, including University of Oregon scientists, has concluded that last February's intense burst of gamma rays possibly coming from the Andromeda Galaxy lacked a gravitational wave. That absence, they say, rules out an initial interpretation that the burst came from merging neutron stars or black holes within Andromeda. (2008-01-03)

X-rays squeeze fuel to generate nuclear fusion energy
Working toward the vision of generating clean energy from nuclear fusion, researchers have successfully imploded fuel capsules by bombarding them with intense x-rays. The results show that the process generates significant fusion and that the implosion method looks capable of generating large-scale energy production. (2002-11-07)

NASA and Gemini probe mysterious explosion in the distant past
Using the powerful one-two combo of NASA's Swift satellite and the Gemini Observatory, astronomers have detected a mysterious type of cosmic explosion farther back in time than ever before. The explosion, known as a short gamma-ray burst, took place 7.4 billion years ago, more than halfway back to the Big Bang. (2008-01-08)

Study jointly led by UCSB researcher supports theory of extraterrestrial impact
A 16-member international team of researchers that includes James Kennett, professor of earth science at UC Santa Barbara, has identified a nearly 13,000-year-old layer of thin, dark sediment buried in the floor of Lake Cuitzeo in central Mexico. The sediment layer contains an exotic assemblage of materials, including nanodiamonds, impact spherules, and more, which, according to the researchers, are the result of a cosmic body impacting Earth. (2012-03-05)

New Caltech instrument poised to image the cosmic web
A Caltech team has designed and built a new imaging spectrograph to map streams of gas that feed forming galaxies. (2017-01-12)

Gravitational Wave Observatory listens for echoes of universe's birth
An investigation by a major scientific group headed by a University of Florida professor has advanced understanding of the early evolution of the universe. (2009-08-19)

Who stole the light?
Free electron X-ray lasers deliver intense ultrashort pulses of x-rays, which can be used to image nanometer-scale objects in a single shot. When the x-ray wavelength is tuned to an electronic resonance, magnetization patterns can be made visible. When using increasingly intense pulses, however, the magnetization image fades away. The mechanism responsible for this loss in resonant magnetic scattering intensity has now been clarified. (2020-09-18)

A unique data center for cosmological simulations
Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have established 'Cosmowebportal', a unique data center for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results. (2017-06-20)

NASA sees 'watershed' cosmic blast in unique detail
On April 27, a blast of light from a dying star in a distant galaxy became the focus of astronomers around the world. The explosion, known as a gamma-ray burst and designated GRB 130427A, tops the charts as one of the brightest ever seen. A trio of NASA satellites, working in concert with ground-based robotic telescopes, captured never-before-seen details that challenge current theoretical understandings of how gamma-ray bursts work. (2013-11-21)

Researchers detail how a distant black hole devoured a star
Two studies appearing in the Aug. 25 issue of the journal Nature provide new insights into a cosmic accident that has been streaming X-rays toward Earth since late March. NASA's Swift satellite first alerted astronomers to intense and unusual high-energy flares from the new source in the constellation Draco. (2011-08-24)

Astronomers predict fireworks from rare stellar encounter in 2018
Astronomers are gearing up for high-energy fireworks coming in early 2018, when a stellar remnant the size of a city meets one of the brightest stars in our galaxy. (2015-07-02)

First 3-D magnetic reconnection measurements
In work that promises new insights into the cosmos and fusion-energy production alike, physicists have reported they have made the first three-dimensional laboratory measurements of magnetic reconnection, the main process by which magnetic fields release energy in the universe. (2002-11-07)

Strange new bursts of gamma rays point to a new way to destroy a star
A team led by the University of Warwick has pinpointed a new type of exceptionally powerful and long-lived cosmic explosion, prompting a theory that they arise in the violent death throes of a supergiant star. (2013-04-16)

MDCT is more accurate than X-rays in depicting spine fractures in severe trauma patients
Multidetector-row computed tomography (MDCT) is more effective than conventional radiographs (x-rays) in helping radiologists pinpoint spine fractures, according to a new study appearing in the June issue of the journal Radiology. (2003-05-27)

UCLA study helps ER physicians identify previously undetectable spinal injuries
Patients with a cervical spine injury may harbor additional spinal damage not visible on regular x-rays. Researchers found more than a third of patients who were thought to have low-risk injuries actually have additional damage that may include significant fractures with the potential to produce serious spinal problems if not detected and treated properly. (2005-09-07)

A Cup Of Tea May Protect Against Skin Cancer
New findings by CSIRO scientists show that tea may contribute significant protection against development of skin cancers caused by exposure to ultraviolet rays. (1998-04-30)

Angiography: Miniature particle accelerator saves on contrast agents
The most prevalent method for obtaining images of clogged coronary vessels is coronary angiography. For some patients, however, the contrast agents used in this process can cause health problems. A team at the Technical University of Munich (TUM) has now demonstrated that the required quantity of these substances can be significantly reduced if monoenergetic X-rays from a miniature particle accelerator are used. (2017-02-27)

Physics tip sheet #42
News from the American Physical Society: improving communication with time reversal; making more money in noisy markets; searching for supersymmetry with a celestial particle accelerator; and highlights from the annual Division of Atomic, Molecular, and Optical Physics (DAMOP) meeting in Tucson. (2004-05-24)

Alloy of hydrogen and oxygen made from water
Researchers have used X-rays to dissociate water at high pressure to form a solid mixture -- an alloy -- of molecular oxygen and molecular hydrogen. The work, by a multi-institutional team that includes Russell Hemley and Ho-kwang Mao of Carnegie's Geophysical Laboratory, appears in the October 27 issue of Science. (2006-10-26)

Jawbone loss predates rheumatoid arthritis
Jawbone loss caused by periodontitis predates the onset of rheumatoid arthritis. This according to research from Umeå University in Sweden presented in the journal Arthritis & Rheumatology. The research also shows a causal relationship between jawbone loss and elevated levels of the bone resorption inducing molecule RANKL in the blood. (2017-12-01)

New SQUID-based detector opens up new fields of study with new level of sensitivity
Investigators at the University of Colorado, Boulder and the National Institute of Standards and Technology (NIST) have developed a new sensor array-based instrument that offers ultra-low noise detection of small amounts of energy for a number of applications. The new device allows for the collection of data from many more detectors than was previously possible. (2017-08-11)

NASA's Swift spies Comet Lulin
While waiting for high-energy outbursts and cosmic explosions, NASA's Swift Gamma-ray Explorer satellite is monitoring Comet Lulin as it closes on Earth. For the first time, astronomers are seeing simultaneous ultraviolet and X-ray images of a comet. (2009-02-20)

Tiny diamonds on Santa Rosa Island give evidence of cosmic impact
Nanosized diamonds found just a few meters below the surface of Santa Rosa Island off the coast of Santa Barbara provide strong evidence of a cosmic impact event in North America approximately 12,900 years ago, according to a new study by scientists. Their hypothesis holds that fragments of a comet struck across North America at that time. (2009-07-21)

Hubble and Keck find farthest known galaxy in the Universe
An international team of astronomers may have set a new record in discovering what is the most distant known galaxy in the Universe. Located an estimated 13 billion light-years away, the object is being viewed at a time only 750 million years after the big bang, when the Universe was barely 5 percent of its current age. (2004-02-16)

Pandora's magnifying glass
This image of Abell 2744 is the first to come from Hubble's Frontier Fields observing program, which is using the magnifying power of enormous galaxy clusters to peer deep into the distant universe. Abell 2744, nicknamed Pandora's Cluster, is thought to have a very violent history, having formed from a cosmic pile-up of multiple galaxy clusters. (2014-01-07)

MR enterography is option for pediatric patients with Crohn disease
Parents with children nine years old and older who have Crohn disease should ask their children's doctor about MR enterography as a replacement for small bowel x-rays or CT enterography, a new study indicates. (2012-08-22)

A molecular thermometer for the distant universe
For the first time, astronomers have detected in the ultraviolet the carbon monoxide molecule in a galaxy located almost 11 billion light-years away, a feat that had remained elusive for 25 years. This detection allows them to obtain the most precise measurement of the cosmic temperature at such a remote epoch. (2008-05-12)

Primordial galaxy bursts with starry births
Peering deep into time with one of the world's newest, most sophisticated telescopes, astronomers have found a galaxy -- AzTEC-3 -- that gives birth annually to 500 times the number of suns as the Milky Way galaxy, according to a new Cornell University-led study published Nov. 10 in the Astrophysical Journal. (2014-11-12)

New technique by CU-Boulder researchers opens door to tabletop X-ray laser
A team of researchers at the University of Colorado at Boulder has developed a new technique to generate laser-like X-ray beams, removing a major obstacle in the decades-long quest to build a tabletop X-ray laser that could be used for biological and medical imaging. (2007-02-25)

Fossil fish gives new insights into the evolution
An international research team led by Giuseppe Marramà from the Institute of Paleontology of the University of Vienna discovered a new and well-preserved fossil stingray with an exceptional anatomy, which greatly differs from living species. The find provides new insights into the evolution of these animals and sheds light on the recovery of marine ecosystems after the mass extinction occurred 66 million years ago. (2019-10-02)

Rensselaer researchers use T-rays to uncover defects in space shuttle foam sample
Using a technique pioneered by researchers at Rensselaer Polytechnic Institute, terahertz (THz) radiation has been used to uncover small defects in a sample of space shuttle foam. This nondestructive method could help National Aeronautical and Space Administration (NASA) officials examine the insulating foam that is applied to each shuttle's fuel tank prior to launch. (2003-06-11)

Space radiation won't stop NASA's human exploration
While it's true that space radiation is one of the biggest challenges for a human journey to Mars, it's also true that NASA is developing technologies and countermeasures to ensure a safe and successful journey to the red planet. (2017-10-13)

Eindhoven University builds affordable alternative to mega-laser X-FEL
Stanford University in the USA has an X-FEL (X-ray free electron laser) with a pricetag of hundreds of millions. It provides images of (2010-12-22)

Where neutrinos come from
Russian astrophysicists have come close to solving the mystery of where high-energy neutrinos come from in space. The team compared the data on the elusive particles gathered by the Antarctic neutrino observatory IceCube and on long electromagnetic waves measured by radio telescopes. Cosmic neutrinos turned out to be linked to flares at the centers of distant active galaxies, which are believed to host supermassive black holes. (2020-05-13)

NASA's Chandra sees eclipsing planet in X-rays for first time
For the first time since exoplanets, or planets around stars other than the sun, were discovered almost 20 years ago, X-ray observations have detected an exoplanet passing in front of its parent star. (2013-07-29)

Powerful explosions suggest neutron star missing link
Observations from NASA's Rossi X-ray Timing Explorer have revealed that the youngest known pulsing neutron star has thrown a temper tantrum. The collapsed star occasionally unleashes powerful bursts of X-rays, which are forcing astronomers to rethink the life cycle of neutron stars. (2008-02-21)

Tiny lasers get a notch up
Tiny disk-shaped lasers as small as a speck of dust could one day beam information through optical computers. Unfortunately, a perfect disk will spray light out, not as a beam, but in all directions. New theoretical results, reported in the Optical Society journal Optics Letters, explain how adding a small notch to the disk edge provides a single outlet for laser light to stream out. (2009-01-22)

Skin expert issues winter sports warning
SKIERS and snowboarders and competitors in the 2002 Winter Olympics should heed sun safety messages this season to reduce the risk of developing skin cancer, says an expert from the University of Newcastle upon Tyne, UK. He says they need to take as much care of their skin as a summer holidaymakers in hot countries. (2001-11-15)

Exotic atoms hold clues to unsolved physics puzzle at the dawn of the universe
An international team of physicists has found the first direct evidence of pear shaped nuclei in exotic atoms. (2013-05-08)

Biggest ever solar flare was even bigger than thought
Last November's record-breaking solar explosion was much larger than previously estimated, thanks to innovative research using the upper atmosphere as a gigantic x-ray detector. The flare's size was a (2004-03-15)

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