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Latest Space environment Stories

2012-01-30 09:10:57

Findings further efforts to better predict geomagnetic storms in space UCLA researchers have explained the puzzling disappearing act of energetic electrons in Earth's outer radiation belt, using data collected from a fleet of orbiting spacecraft. In a paper published today in the journal Nature Physics, the team shows that the missing electrons are swept away from the planet by a tide of solar wind particles during periods of heightened solar activity. "This is an important milestone...

Solving The Mystery Of The Vanishing Electrons
2012-01-30 08:45:51

Findings further efforts to better predict geomagnetic storms in space UCLA researchers have explained the puzzling disappearing act of energetic electrons in Earth's outer radiation belt, using data collected from a fleet of orbiting spacecraft. In a paper published Jan 29 in the journal Nature Physics, the team shows that the missing electrons are swept away from the planet by a tide of solar wind particles during periods of heightened solar activity. "This is an important...

2012-01-27 08:00:00

The geographical sciences website EurekaMag.com publishes insights into specific subjects of all areas of geographical science. The latest review covers Aurora borealis which are the Northern Lights caused by radiation emitted as light from atoms in the upper atmosphere as they are hit by fast-moving electrons and protons. Two other newly published reviews cover Solar Flare which is a large energy release at the sun's surface, and Solar Storm which is a massive burst of solar wind associated...

Image 1 - Proba-1 Celebrates 10 Years Of Charting Earth's Radiation Belts
2011-11-08 08:43:43

ESA´s Proba-1 recently celebrated its tenth birthday in orbit. Kept busy as an Earth-observing mission, the microsatellite has also been building a detailed picture of changes in our planet´s radiation belts. Smaller than a cubic meter, the technology-testing Proba-1 was launched on 22 October 2001. Among the payloads was ESA´s SREM standard radiation environment monitor, which was turned on a week later. The size of a shoebox, the monitor records high-energy charged...

Image 1 - Space Weather Prediction Model Improves NOAA’s Forecast Skill
2011-10-21 03:07:21

[ Watch the Video ] NOAA is now using a sophisticated forecast model that substantially improves predictions of space weather impacts on Earth. Better forecasts offer additional protection for people and the technology-based infrastructure we use daily. Explosions in the sun´s outer atmosphere — tracked and forecast by NOAA scientists — can cause geomagnetic and solar radiation storms at Earth that can impede the operation of electrical power grids, interfere with the...

2011-04-20 10:16:51

The Van Allen radiation belts are a hazardous environment, full of 'killer' electrons that can be lethal to orbiting satellites. And when those electrons sometimes hit the atmosphere, they alter its chemistry with implications for climate variation. Now students at a school in Yorkshire are set to help scientists better understand the belts. Dr Andrew Kavanagh will present this innovative project between Lancaster University and Headlands School and Community Science College on Wednesday 20...

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2011-03-14 07:09:26

With almost half of the MagISStra mission behind him, ESA astronaut Paolo Nespoli has not had much free time on the International Space Station. In addition to his heavy workload, he has also been on a special diet. The International Space Station is preparing for a new era without Space Shuttles visiting every few months. The focus is shifting from building it to learning to work and live in space and doing scientific research. "Space is a unique place for many kinds of science," says...

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2011-01-26 11:26:53

The first large-scale, physics-based space weather prediction model is transitioning from research into operation. Scientists affiliated with the National Science Foundation (NSF) Center for Integrated Space Weather Modeling (CISM) and the National Weather Service reported the news today at the annual American Meteorological Society (AMS) meeting in Seattle, Wash. The model will provide forecasters with a one-to-four day advance warning of high speed streams of solar plasma and Earth-directed...

2009-05-08 12:30:00

GREENBELT, Md., May 8 /PRNewswire-USNewswire/ -- Scientists using NASA's fleet of THEMIS spacecraft have discovered how radio waves produced by electrons injected into Earth's near-space environment both generate and remove high-speed "killer" electrons. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) Killer electrons are born within Earth's natural radiation belts, called the Van Allen belts after their discoverer, James Van Allen. Killer electrons are mostly found in the...

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2008-07-10 09:55:00

Think you have trouble getting rid of the clutter in your living room? After more than 50 years of launching rockets and satellites into space, the human race now has to deal with the clutter left behind -- or is it "above"? Dead satellites, spent rocket stages, paint flakes, and coolant from nuclear-powered satellites continue to orbit the Earth at ultrahigh velocities. It's a serious subject. Space debris threatens the lives of astronauts and the launch of new satellites today, says Dr....


Word of the Day
omadhaun
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.