Cosmic Rays Current Events

Cosmic Rays Current Events, Cosmic Rays News Articles.
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Climate change -- research suggests it is not a swindle
New research has dealt a blow to the skeptics who argue that climate change is all due to cosmic rays rather than to man-made greenhouse gases. The new evidence shows no reliable connection between the cosmic ray intensity and cloud cover. (2008-04-03)

Ultra-high-energy cosmic rays come from galaxies far, far away
A new study reveals that cosmic rays with the highest energies that make their way to Earth originated from outside our Milky Way galaxy. (2017-09-21)

Possible origin of cosmic rays revealed with gamma rays
An international team of astronomers has produced the first ever image of an astronomical object using high energy gamma rays, helping to solve a 100 year old mystery - an origin of cosmic rays. (2004-11-03)

NC State researchers 'clear away the dust,' get better look at youngest supernova remnant
Researchers at North Carolina State University have used a mathematical model that allows them to get a clearer picture of the galaxy's youngest supernova remnant by correcting for the distortions caused by cosmic dust. Their new data provides evidence that this remnant is from a type Ia supernova -- the explosion of a white dwarf star -- and raises questions about the ways in which magnetic fields affect the generation of the remnant's cosmic ray particles. (2009-04-22)

Cosmic ray history encoded in abundances of light elements
By taking a closer look at two of the lightest elements in the universe, a University of Illinois scientist is helping to solve a mystery that lies at the intersection of cosmology, cosmic rays and chemical evolution. (1999-06-01)

The highest energy gamma rays discovered by the Tibet ASgamma experiment
The Tibet ASgamma experiment, a China-Japan joint research project, has discovered the highest energy cosmic gamma rays ever observed from an astrophysical source - in this case, the 'Crab Nebula.' The experiment detected gamma rays ranging from > 100 Teraelectron volts (TeV) to an estimated 450 TeV. (2019-07-03)

Researchers a step closer to finding cosmic ray origins
The origin of cosmic rays in the universe has confounded scientists for decades. But a study by researchers using data from the IceCube Neutrino Observatory at the South Pole reveals new information that may help unravel the longstanding mystery of exactly how and where these high-energy particles are produced. (2013-08-30)

Moon glows brighter than sun in images from NASA's Fermi
If our eyes could see gamma rays, the Moon would appear brighter than the Sun! That's how NASA's Fermi Gamma-ray Space Telescope has seen our neighbor in space for the past decade. (2019-08-15)

Protection for humans on Mars
For six weeks the rover (2012-09-18)

NYU Physicist Proposes New Theory For Origin And Make-Up Of Extremely High-Energy Cosmic Rays
Where do extremely high-energy cosmic rays come from and where do they get their energy? NYU physicist Glennys Farrar has proposed that the very highest energy cosmic rays appear to come from extremely distant quasars. Furthermore, Farrar says that these cosmic rays are composed of a new type of subatomic particle. (1998-10-21)

VERITAS telescopes help solve 100-year-old mystery: The origin of cosmic rays
Nearly 100 years ago, scientists detected the first signs of cosmic rays -- subatomic particles that zip through space at nearly the speed of light. The most energetic cosmic rays hit with the punch of a 98-mph fastball, even though they are smaller than an atom. Astronomers questioned what force could accelerate particles to such a speed. New evidence from the VERITAS telescopes shows that cosmic rays likely are powered by exploding stars and stellar (2009-11-02)

Winter monsoons became stronger during geomagnetic reversal
New evidence suggests that high-energy particles from space known as galactic cosmic rays affect the Earth's climate by increasing cloud cover, causing an 'umbrella effect'. (2019-07-03)

European astroparticle physicists to celebrate 100 years of cosmic ray experiments
Four hundred years ago, Galileo was the first one to look at the sky with a telescope. About 100 years ago a new era for astrophysics began with the first astroparticle physics experiments that led to the discovery of cosmic rays. European physicists take the opportunity of the International Year of Astronomy to celebrate this anniversary. (2009-10-02)

The cosmic ray gun duel of Eta Carinae
An international collaboration operating NASA's NuSTAR satellite has revealed that two of the biggest stars in the galaxy are capable of creating cosmic rays. Their results were published in Nature Astronomy this month. (2018-07-29)

Highest-energy cosmic rays have extragalactic origin
A 50-year-old debate has at last been settled: the highest-energy cosmic rays do not originate in our own Galaxy but in galaxies located tens or even hundreds of millions of light years away. The evidence comes from the Pierre Auger Observatory in Argentina, which has been gathering data since 2004 about these particles that constantly bombard the Earth. The CNRS is the observatory's principal French funding agency. (2017-09-22)

A Danish experiment suggests unexpected magic by cosmic rays in cloud formation
Researchers in the Technical University of Denmark are hard on the trail of a previously unknown molecular process that helps commonplace clouds to form. Tests in a large and highly instrumented reaction chamber in Lyngby, called SKY2, demonstrate that an existing chemical theory is misleading. (2013-09-04)

NASA's Fermi closes on source of cosmic rays
New images from NASA's Fermi Gamma-ray Space Telescope show where supernova remnants emit radiation a billion times more energetic than visible light. The images bring astronomers a step closer to understanding the source of some of the universe's most energetic particles -- cosmic rays. (2010-02-16)

NRL's Large Area Telescope explores high-energy particles
NASA's Fermi Gamma-ray Space Telescope is making some exciting discoveries about cosmic rays and the Large Area Telescope aboard Fermi is the tool in this investigation. Scientists in the Naval Research Laboratory's Space Science Division were instrumental in the design and development of the Large Area Telescope. (2009-07-28)

Chandra discovers relativistic pinball machine
New clues about the origins of cosmic rays, mysterious high-energy particles that bombard the Earth, have been revealed using NASA's Chandra X-ray Observatory. An extraordinarily detailed image of the remains of an exploded star provides crucial insight into the generation of cosmic rays. (2006-11-15)

Some cosmic rays originate within solar system, researchers find
Researchers have found that a portion of anomalous cosmic rays results from interactions with dust grains from a belt of comet-sized objects near Pluto's orbit. (2002-10-30)

NASA's fermi finds possible dark matter ties in andromeda galaxy
NASA's Fermi Gamma-ray Space Telescope has found a signal at the center of the neighboring Andromeda galaxy that could indicate the presence of the mysterious stuff known as dark matter. The gamma-ray signal is similar to one seen by Fermi at the center of our own Milky Way galaxy. (2017-02-21)

Cosmic rays hit space age high
Planning a trip to Mars? Take plenty of shielding. According to sensors on NASA's Advanced Composition Explorer spacecraft, galactic cosmic rays have just hit a Space Age high. (2009-09-29)

Observatory detects extragalactic cosmic rays hitting the Earth
Fifty years ago, scientists discovered that the Earth is occasionally hit by cosmic rays of enormous energies. Since then, they have argued about the source of those ultra-high energy cosmic rays -- whether they came from our galaxy or outside the Milky Way. The answer is a galaxy or galaxies far, far away, according to a report published Sept. 22 in Science by the Pierre Auger Collaboration. (2017-09-22)

Study confirms cosmic rays have extragalactic origins
International collaboration by scientists with the Pierre Auger Observatory confirms that most of the highest energy cosmic rays that reach the Earth come from outside the Milky Way galaxy. (2017-09-21)

LHC switch-on fears are completely unfounded
A new report published Sept. 5 provides the most comprehensive evidence available to confirm that the Large Hadron Collider's switch-on, due on Wednesday next week, poses no threat to mankind. Nature's own cosmic rays regularly produce more powerful particle collisions than those planned within the LHC, which will enable nature's laws to be studied in controlled experiments. (2008-09-05)

UC Riverside hosts international conference on astrophysics
During February 10-13, 2002, the Institute of Geophysics and Planetary Physics (IGPP) of the University of California, Riverside will host the (2002-02-07)

Cosmic rays are not the cause of climate change, scientists say
Eleven Earth and space scientists say that a recent paper attributing most climate change on Earth to cosmic rays is incorrect and based on questionable methodology. They affirm that the strong increase of carbon dioxide and some other greenhouse gases in the atmosphere due to manmade emissions is most probably the main cause of the global warming of the last few decades. (2004-01-22)

IceCube spies unexplained pattern of cosmic rays
Though still under construction, the IceCube Neutrino Observatory at the South Pole is already delivering scientific results -- including an early finding about a phenomenon the telescope was not even designed to study. (2010-07-28)

Electron-gun simulations explain the mechanisms of high-energy cosmic rays
A new study published in EPJ D provides a rudimentary model for simulating cosmic rays' collisions with planets by looking at the model of electrons detached from a negative ion using photons. In this work, Chinese physicists have for the first time demonstrated that they can control the dynamics of negative ion detachment via photons, or photodetachment, on a moving surface. (2019-02-06)

Starburst galaxy sheds light on longstanding cosmic mystery
An international collaboration that includes scientists from the University of Delaware's Bartol Research Institute in the Department of Physics and Astronomy has discovered very-high-energy gamma rays in the Cigar Galaxy (M82), a bright galaxy filled with exploding stars 12 million light years from Earth. The gamma rays observed by the team are the highest-energy photons ever detected from a galaxy undergoing large amounts of star formation and point to the origins of cosmic rays. (2009-11-02)

Microscopic 'timers' reveal likely source of galactic space radiation
Most of the cosmic rays that we detect at Earth originated relatively recently in nearby clusters of massive stars, according to new results from NASA's Advanced Composition Explorer spacecraft. ACE allowed the research team to determine the source of these cosmic rays by making the first observations of a very rare type of cosmic ray that acts like a tiny timer, limiting the distance the source can be from Earth. (2016-04-21)

Galactic cosmic rays affect Titan's atmosphere
Planetary scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) revealed the secrets of the atmosphere of Titan, the largest moon of Saturn. The team found a chemical footprint in Titan's atmosphere indicating that cosmic rays coming from outside the Solar System affect the chemical reactions involved in the formation of nitrogen-bearing organic molecules. This is the first observational confirmation of such processes, and impacts the understanding of the intriguing environment of Titan. (2020-02-14)

Stratospheric balloon launched from Antarctica's McMurdo base
The balloon raised Cream (Cosmic Ray Energetics And Mass) experiment up to 40 kilometres of height. In the experiment, coordinated by Eun Suk Seo of Maryland University, participate American universities (Maryland, Chicago, Penn State, Ohio), South Korea universities (Ewa, KyungPook) and an Italian group of Pisa, Siena, and Torino departments of the Italian Institute for Nuclear Physics (Infn), directed by Pier Simone Marrocchesi. (2004-12-17)

The Milky Way shaped life on Earth
Frenzied star-making in the Milky Way Galaxy starting about 2,400 million years ago had extraordinary effects on life on Earth. Harvests of bacteria in the sea soared and crashed in a succession of booms and busts, with an instability not seen before or since. (2006-11-14)

Solar activity has a direct impact on Earth's cloud cover
Solar variations affect the abundance of clouds in our atmosphere, a new study lead by DTU Space suggests. Large eruptions on the surface of the Sun can temporarily shield Earth from so-called cosmic rays which now appear to affect cloud formation. (2016-08-25)

Cosmic rays linked to global warming
Researchers studying global warming have often been confounded by the differences between observed increases in surface-level temperatures and unchanging low-atmosphere temperatures. Researchers have proposed for the first time that interstellar cosmic rays could be the missing link between the discordant temperatures observed during the last two decades. (2002-07-30)

IceCube Neutrino Observatory explores origin of cosmic rays
Although cosmic rays were discovered 100 years ago, their origin remains one of the most enduring mysteries in physics. Now, the IceCube Neutrino Observatory, a massive detector in Antarctica, is honing in on how the highest energy cosmic rays are produced. (2012-04-18)

Pressure runs high at edge of solar system
Out at the boundary of our solar system, pressure runs high. This pressure, the force plasma, magnetic fields and particles like ions, cosmic rays and electrons exert on one another when they flow and collide, was recently measured by scientists in totality for the first time -- and it was found to be greater than expected. (2019-10-08)

Los Alamos observatory fingers cosmic ray 'hot spots'
A Los Alamos National Laboratory cosmic-ray observatory has seen for the first time two distinct hot spots that appear to be bombarding Earth with an excess of cosmic rays. The research calls into question nearly a century of understanding about galactic magnetic fields near our solar system. (2008-11-24)

Iowa State researchers contribute to discovery of gamma rays from starburst galaxy
Iowa State University researchers have contributed to the discovery of high-energy gamma rays coming from a galaxy that's quickly creating new stars. The discovery has just been published in the journal Nature. A key to the research is the VERITAS telescope system that Iowa State researchers helped build. (2009-11-02)

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