Cosmic Rays Current Events | Cosmic Rays News | 11
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Evidence for ultra-energetic particles in jet from black hole
An international team of astronomers led by researchers at Yale has obtained key infrared observations that reveal the nature of quasar particle jets that originate just outside super-massive black holes at the center of galaxies and radiate across the spectrum from radio to X-ray wavelengths. view more (2006-06-21)
First Black Holes Born Starving
The first black holes in the universe had dramatic effects on their surroundings despite the fact that they were small and grew very slowly, according to recent supercomputer simulations carried out by astrophysicists Marcelo Alvarez and Tom Abel of the Kavli Institute for Particle Astrophysics and Cosmology, jointly located at the Department of... view more... (2009-08-11)
Italian, US cosmologists present alternate explanation for accelerating expansion of the universe: Was Einstein right when he said he was wrong?
Why is the universe expanding at an accelerating rate, spreading its contents over ever greater dimensions of space? An original solution to this puzzle, certainly the most fascinating question in modern cosmology, was put forward by four theoretical physicists, Edward W. Kolb of the U.S. Department of Energy's Fermi National Accelerator... view more... (2005-03-16)
Old pulsars still have new tricks to teach us
The super-sensitivity of ESA's XMM-Newton X-ray observatory has shown that the prevailing theory of how stellar corpses, known as pulsars, generate their X-rays needs revising. view more (2006-07-26)
21st century detective work reveals how ancient rock got off to a hot start
A new technique using X-rays has enabled scientists to play 'detective' and solve the debate about the origins of a three billion year old rock fragment. view more (2008-10-16)
Milky Way's Giant Black Hole Awoke from Slumber 300 Years Ago
Using NASA, Japanese, and European X-ray satellites, a team of Japanese astronomers has discovered that our galaxy's central black hole let loose a powerful flare three centuries ago. view more (2008-04-16)
Overfishing great sharks wiped out North Carolina bay scallop fishery
Fewer big sharks in the oceans led to the destruction of North Carolina's bay scallop fishery and inhibits the recovery of depressed scallop, oyster and clam populations along the U.S. Atlantic Coast, according to an article in the March 30 issue of the journal Science. view more (2007-03-30)
Scientist refines cosmic clock to determine age of Milky Way
The University of Chicago's Nicolas Dauphas has developed a new way to calculate the age of the Milky Way that is free of the unvalidated assumptions that have plagued previous methods. view more (2005-06-30)
Stress management: X-rays reveal Si thin-film defects
Pile-ups, bad on the freeway, also are a hazard for the makers of high-performance strained-silicon (Si) semiconductor devices. view more (2006-07-10)
Type of lung cancer screening used to detect disease may impact 5-year survival rates
Dr. Hisao Asamura and his team of researchers at The National Cancer Center Hospital in Tokyo, Japan examined the records of 2,281 patients who underwent lung cancer resection surgery between 2000 and 2006. view more (2009-05-05)
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. view more (2009-02-23)
NASA spacecraft ready to explore outer solar system
The first NASA spacecraft to image and map the dynamic interactions taking place where the hot solar wind slams into the cold expanse of space is ready for launch Oct. 19. The two-year mission will begin from the Kwajalein Atoll, a part of the Marshall Islands in the Pacific Ocean. view more (2008-10-07)
Hand bone mineral density is an effective predictor of mortality in rheumatoid arthritis
Low bone mineral density in the hand is a valid predictor of overall mortality in patients with rheumatoid arthritis (RA) and indicates long-term prognosis, according to a new study presented today at EULAR 2008, the Annual Congress of the European League Against Rheumatism in Paris, France. Digital X-ray radiogrammetry (DXR) demonstrated bone... view more... (2008-06-13)
Movement of atoms viewed at 100 times higher than previous resolution
A paper published in Nature, by scientists at the Universities of Sheffield and Warwick and the European Synchrotron Radiation Facility, describes how experts have used X-rays to see structures in unprecedented detail at the atomic scale. The technique is 100 times more sensitive than any other method, and has the potential to allow scientists to... view more... (2005-05-04)
ESA`s Integral satellite ready for lift-off from Baikonur
Follow the launch from one of the ESA establishments view more (2002-10-07)
New NIST nano-ruler sets some very small marks
The National Institute of Standards and Technology (NIST) has issued a new ruler, and even for an organization that routinely deals in superlatives, it sets some records. view more (2009-09-23)
Sunburn alert: UVB does more damage to DNA than UVA
As bombs burst in air this July 4, chances are that sunburn will be the red glare that most folks see - and feel. But unfortunately, even when there is no burn, the effects of the sun's ultraviolet (UV) rays can have deadly consequences. view more (2008-07-01)
A third of Britons would forfeit flying abroad"¦
The annual exodus of 'Brits abroad' is under threat, as a third of Britons claim they would give up flying if it solved the global climate crisis, according to new research released today by the Dana Centre in London. view more (2005-04-19)
Queen's physicist unlocking the mysteries of neighbouring galaxies
An international team of astronomers, including Queen's University physicist Larry Widrow, have uncovered evidence of a nearby cosmic encounter. view more (2009-09-08)
Suntans are bad for bacteria too! Exposure to UV irradiation kills off harmful bacteria in food
Research news from the Journal of the Science of Food and Agriculture 15 December 2003: The presence of E.coli bacteria, found in foods such as egg white and apple juice, is a major public health concern. The bacteria have, in the past, been inactivated by heat pasteurisation -- which can affect flavour and consistency. New evidence published in... view more... (2003-12-15)
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