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Latest Galactic cosmic ray Stories

Cosmic Rays Origins
2013-08-30 11:25:08

[ Listen To The redOrbit.com Podcast: The Mystery Of The Origins Of Cosmic Rays ] John P. Millis, PhD for redOrbit.com - Your Universe Online Streaming across the Universe are high-energy charged particles, known as cosmic rays. They move through space, interacting with our galactic magnetic field, deflecting in every possible direction. Eventually these fast-moving particles may impact the Earth’s atmosphere. For more than 100 years astronomers have been aware of their existence,...

Moon Radiation Study Reduce Health Risks Astronauts
2013-06-12 10:23:11

April Flowers for redOrbit.com - Your Universe Online A new study from the space scientists at the University of New Hampshire (UNH) and the Southwest Research Institute (SwRI) reports that data collected by NASA's Lunar Reconnaissance Orbiter (LRO) reveals that lighter materials like plastics provide effective shielding against the radiation hazards faced by astronauts during extended space travel. The findings, published in the journal Space Weather, could help reduce human health risks...

Radiation Dangers From Manned Mars Trip
2013-05-30 13:20:16

John P. Millis, Ph.D. and Lee Rannals for redOrbit.com — Your Universe Online There are many barriers that stand in the way of sending a human team to the surface of Mars. But near the top of the list of dangers would have to be the radiation exposure during the round trip voyage through the solar system. Clearly, a detailed understanding of the exposure levels is key in planning any mission to the Red Planet. To this end, the recent mission that carried NASA´s Curiosity...

2011-04-01 01:02:22

In a paper to be published in the April 10, 2011, issue of The Astrophysical Journal, scientists on NASA's Interstellar Boundary Explorer (IBEX) mission, including lead author Nathan Schwadron and others from the University of New Hampshire, isolate and resolve the mysterious "ribbon" of energy and particles the spacecraft discovered in the heliosphere "“ the huge bubble that surrounds our solar system and protects us from galactic cosmic rays. The finding, which overturns 40 years of...

2010-06-03 15:22:50

In the paper the authors from the Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences in Beijing proposed a new model trying to explain the knee at cosmic ray spectra. The knee kept as a puzzle in cosmic ray physics for nearly half a century. The work was inspired by the recent observation of anomalous excess of electrons and positrons in cosmic rays. The work tries to explain the knee and the electron/positron excess in a single model. The...

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2009-12-16 11:05:00

NASA's current mission in orbit around the moon, the Lunar Reconnaissance Orbiter, or LRO, has been providing crucial insights about our nearest celestial neighbor since its launch in June. At a scientific meeting on Dec. 15, researchers unveiled the latest findings from three instruments of the powerful suite of seven aboard the satellite. LRO is expected to return more data about the moon than all previous orbital missions combined. At the American Geophysical Union meeting in San...

2009-12-15 17:08:00

GREENBELT, Md., Dec. 15 /PRNewswire-USNewswire/ -- NASA's current mission in orbit around the moon, the Lunar Reconnaissance Orbiter, or LRO, has been providing crucial insights about our nearest celestial neighbor since its launch in June. At a scientific meeting today, researchers unveiled the latest findings from three instruments of the powerful suite of seven aboard the satellite. LRO is expected to return more data about the moon than all previous orbital missions combined. (Logo:...

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2009-09-29 12:30:00

Planning a trip to Mars? Take plenty of shielding. According to sensors on NASA's ACE (Advanced Composition Explorer) spacecraft, galactic cosmic rays have just hit a Space Age high. "In 2009, cosmic ray intensities have increased 19% beyond anything we've seen in the past 50 years," says Richard Mewaldt of Caltech. "The increase is significant, and it could mean we need to re-think how much radiation shielding astronauts take with them on deep-space missions." The cause of the surge is solar...

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2009-06-25 13:15:00

Thanks to a unique "ballistic study" that combines data from ESO's Very Large Telescope and NASA's Chandra X-ray Observatory, astronomers have now solved a long-standing mystery of the Milky Way's particle accelerators. They show in a paper published today on Science Express that cosmic rays from our galaxy are very efficiently accelerated in the remnants of exploded stars. During the Apollo flights astronauts reported seeing odd flashes of light, visible even with their eyes closed. We have...

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2008-11-19 13:45:00

An international team of researchers has discovered a puzzling surplus of high-energy electrons bombarding Earth from space. The source of these cosmic rays is unknown, but it must be close to the solar system and it could be made of dark matter. Their results are being reported in the Nov. 20th issue of the journal Nature. "This is a big discovery," says co-author John Wefel of Louisiana State University. "It's the first time we've seen a discrete source of accelerated cosmic rays standing...


Latest Galactic cosmic ray Reference Libraries

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2004-10-19 04:45:41

Cosmic Rays -- Cosmic Rays. Cosmic rays are energetic particles that are found in space and filter through our atmosphere. Cosmic rays have interested scientists for many different reasons. They come from all directions in space, and the origination of many of these cosmic rays is unknown. Cosmic rays were originally discovered because of the ionozation they produce in our atmosphere. Cosmic rays also have an extreme energy range of incident particles, which have allowed physicists to...

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Word of the Day
cacodemon
  • An evil spirit; a devil.
  • A nightmare.
  • In astrology, the twelfth house of a scheme or figure of the heavens: so called from its signifying dreadful things, such as secret enemies, great losses, imprisonment, etc.
'Cacodemon' comes from a Greek term meaning 'evil genius.'
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