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Latest Ionosphere Stories

1db28cab50a127bbb9f47c9cae364af0
2008-05-01 11:40:00

Today, NASA-funded researchers released to the general public a new "4D" live model of Earth's ionosphere. Without leaving home, anyone can fly through the layer of ionized gas that encircles Earth at the edge of space itself. All that's required is a connection to the Internet. "This is an exciting development," says solar physicist Lika Guhathakurta of NASA headquarters in Washington, DC. "The ionosphere is important to pilots, ham radio operators, earth scientists and even soldiers. Using...

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2008-04-29 00:20:00

As far as endings go, this one's a real heart breaker. NASA's Polar satellite concludes its successful mission at the end of April with a breathtaking visible-light image of the colorful dancing lights of the aurora. The Polar team has dubbed this final image "The Broken Heart." When the Polar satellite launched February 24, 1996, the plan was for a two-year science mission to study the lights that form a ring around Earth's north and south magnetic poles, known as the Northern and Southern...

2008-01-10 00:00:00

A team of scientists from the Naval Research Laboratory, the Air Force Research Laboratory's (AFRL's) Research Vehicles Directorate, Kirtland Air Force Base, N.M., and the University of New Mexico (UNM) has detected the lowest frequency radar echo from the moon ever seen with earth-based receivers. In the lunar echo experiment (more properly called a lunar bistatic radar experiment), the Air Force/Navy High Frequency Active Auroral Research Program (HAARP) high power transmitter, located...

0fe465e2f27cdf64e9bfc0a5e1524ef11
2007-12-19 06:55:00

It has been 35 years since humans last walked on the moon, but there has been much recent discussion about returning, either for exploration or to stage a mission to Mars. However, there are concerns about potential radiation danger for astronauts during long missions on the lunar surface. A significant part of that danger results from solar storms, which can shoot particles from the sun to Earth at nearly the speed of light and can heat oxygen in the Earth's ionosphere and send it in a...

6cadb5c02bafef7b7128f078e9e56cc41
2007-11-16 10:55:00

With ESA's Mars Express, scientists continue to gain new insight into the mysterious Martian environment. Some of the most exciting results are being sent back by the MARSIS (Mars Advanced Radar for Subsurface and Ionospheric Sounding) experiment. MARSIS transmits low frequency radio waves towards the planet's surface and records the echoes of the different layers. Although Mars is sometimes described as the most Earth-like of all the planets, there are many differences between the two...

9d0ceaad7ececb5439bc36e06b95dc8a1
2007-11-14 12:50:00

Something strange is happening in the atmosphere above Africa and researchers have converged on Addis Ababa, Ethiopia, to discuss the phenomenon. The Africa Space Weather Workshop kicked off Nov. 12th with nearly 100 scientists and students in attendance. The strange phenomenon that brings all these people together is the ion plume"”"a newly discovered form of space weather," says University of Colorado atmospheric scientist and Workshop co-organizer Tim Fuller-Rowell. Researchers...

5833ec3a902842d19ddedb65868d25291
2007-06-13 08:55:00

A Japanese tether of novel construction could unfold new opportunities in space. NASA is joining a Japanese team in a space experiment that uses reverse origami to show the way to help keep satellites in their proper orbits, or to return spent rocket stages quickly to Earth. Les Johnson of NASA's Marshall Space Flight Center is working with Prof. Hironori A. Fujii of the Tokyo Metropolitan University on the Foldaway Flat Tether Deployment System--or Fortissimo, as it is sometimes called....

eba1c386f587226a392638f59325f22f1
2007-02-09 13:00:00

Giant electrical circuits power the magical open-air light show of the auroras, forming arcs in high-latitude regions like Scandinavia. New results obtained thanks to ESA's Cluster satellites provide a new insight into the source of the difference between the two types of electrical circuits currently known to be associated to the auroral arcs. The deep mechanisms that rule the creation of the beautiful auroras, or polar lights, have been the subject of studies that are keeping solar and...

0dc427a176d80f938b018d96d790b95f
2007-01-03 15:05:00

CHAMPAIGN, Ill. -- While most weather forecasters focus on the six or seven miles of earth's atmosphere where clouds drift and storms form, Jonathan Makela's sights are set much higher. Makela, a University of Illinois electrical- and computer-engineering professor, is working on a way to forecast the weather in the ionosphere, the region of Earth's atmosphere found about 45 to 600 miles above the planet. What happens in the ionosphere - so named because it is heavily ionized by the sun's...

9cdb7fa9a83e776300eda0fda6166a041
2006-09-27 09:14:59

Strong solar flares cause Global Positioning System (GPS) receivers to fail, Cornell researchers have discovered. Because solar flares -- larger-than-normal radiation "burps" by the sun -- are generally unpredictable, such failures could be devastating for "safety-of-life" GPS operations -- such as navigating passenger jets, stabilizing floating oil rigs and locating mobile phone distress calls. "If you're driving to the beach using your car's navigation system, you'll be OK. If you're on a...


Latest Ionosphere Reference Libraries

2_9bcd3d0dfcf4243eea23c40fd206822c2
2004-10-19 04:45:40

Arecibo Observatory -- The Arecibo Observatory is part of the National Astronomy and Ionosphere Center (NAIC), a national research center operated by Cornell University under a cooperative agreement with the National Science Foundation (NSF). The NSF is an independent federal agency whose aim is to promote scientific and engineering progress in the United States. NSF funds research and education in most fields of science and engineering. Additional support is provided by the National...

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Word of the Day
grass-comber
  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'