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Latest Ionosphere Stories

962ae9eacd48c603fc7095bc58510f5f
2010-07-16 07:10:00

NASA-funded researchers are monitoring a big event in our planet's atmosphere. High above Earth's surface where the atmosphere meets space, a rarefied layer of gas called "the thermosphere" recently collapsed and now is rebounding again. "This is the biggest contraction of the thermosphere in at least 43 years," says John Emmert of the Naval Research Lab, lead author of a paper announcing the finding in the June 19th issue of the Geophysical Research Letters (GRL). "It's a Space Age...

c5c32ec12c4849bbe8f9bb6c674ce4e01
2010-06-10 09:46:38

A team of Spanish researchers has made a high-speed recording of elves and sprites in storms, fleeting and luminous electric phenomena produced in the upper layers of the atmosphere. Their analysis of these observations has been published in the Journal of Geophysical Research. "This is the first time in Europe that we have been able to use high-speed video to detect transitory luminous phenomena taking place in the upper atmosphere "“ so-called sprites (in the form of a carrot or...

2009-12-16 13:44:00

HAMPTON, Va., Dec. 16 /PRNewswire-USNewswire/ -- New measurements from a NASA satellite show a dramatic cooling in the upper atmosphere that correlates with the declining phase of the current solar cycle. For the first time, researchers can show a timely link between the Sun and the climate of Earth's thermosphere, the region above 100 km, an essential step in making accurate predictions of climate change in the high atmosphere. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO)...

5ca8167e0b34d2c9a5a8a4d202bd87db
2009-12-02 14:41:04

The STPSat-1, built for the Department of Defense (DoD) Space Test Program (STP) and operated by the DoD STP for the first year then transitioned to NRL for the last 16 months, was decommissioned on October 7th after completing almost 2 ½ years of successful on-orbit operation. The satellite's two payloads, both designed and built by the Naval Research Laboratory (NRL), provided unique measurements of middle atmospheric hydroxyl, polar mesospheric clouds and the low...

c7ed07939a62280e3ac304214c988bdd
2009-11-11 14:50:00

TAU discovers an accurate tool for tracking solar rotation Sunspots, which rotate around the sun's surface, tell us a great deal about our own planet. Scientists rely on them, for instance, to measure the sun's rotation or to prepare long-range forecasts of the Earth's health. But there are some years, like this one, where it's not possible to see sunspots clearly. When we're at this "solar minimum," very few, if any, sunspots are visible from Earth. That poses a problem for scientists in a...

f035a2260db0ef9f33aa385cdd748ecf
2009-11-03 14:23:26

Launched from Vandenberg Air Force Base, Calif., aboard an United Launch Alliance Atlas V launch vehicle, Oct. 18, 2009, the Special Sensor Ultraviolet Limb Imager (SSULI) developed by NRL's Space Science Division and Spacecraft Engineering Department offers a first of its kind technique for remote sensing of the ionosphere and thermosphere from space. Flying on-orbit the U.S. Air Force Defense Meteorological Satellite Program (DMSP) F18 (flight 18) satellite, SSULI's characterization of the...

d5ecc6af39b0f9febaf53ae5113d03761
2009-09-15 05:35:00

A powerful lightning storm in Saturn's atmosphere that began in mid-January 2009 has become the Solar System's longest continuously observed thunderstorm.  It broke the record duration of 7.5 months set by another thunderstorm observed on Saturn by NASA's Cassini spacecraft between November 2007 and July 2008. The observations of the thunderstorm will be presented by Dr Georg Fischer of the Austrian Academy of Sciences at the European Planetary Science Congress in Potsdam, Germany, on...

a9a99b0cf68b6655e6e2937cce7d2c531
2009-09-10 09:50:00

UCLA atmospheric scientists have discovered a previously unknown basic mode of energy transfer from the solar wind to the Earth's magnetosphere. The research, federally funded by the National Science Foundation, could improve the safety and reliability of spacecraft that operate in the upper atmosphere. "It's like something else is heating the atmosphere besides the sun. This discovery is like finding it got hotter when the sun went down," said Larry Lyons, UCLA professor of atmospheric and...

2009-08-25 13:31:14

U.S. scientists say they've captured a one-second image and the electrical fingerprint of a gigantic lightning jet that flowed 40 miles upward from a storm. While not occurring every time a thunderstorm develops, the rarely seen, highly charged meteorological events can flash up to the lower levels of space, or the ionosphere, Duke University scientists said. They are substantially larger than their downward striking cousins. Despite poor viewing conditions as a result of a full moon and a...

19cabb8e9f9305b721e4832ee8948c4a1
2009-08-18 15:15:00

Scientists from NRL's Space Science and Remote Sensing Divisions, in collaboration with researchers from the University of New Mexico (UNM) and the National Radio Astronomy Observatory (NRAO) located in Socorro, N.M., have generated the first scientific results from the Long Wavelength Demonstrator Array (LWDA). The measurements were obtained during field tests and calibration of two prototype antennas for the much larger Long Wavelength Array (LWA), which will eventually consist of nearly...


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
bodacious
  • Remarkable; prodigious.
  • Audacious; gutsy.
  • Completely; extremely.
  • Audaciously; boldly.
  • Impressively great in size; enormous; extraordinary.
This word is probably from the dialectal 'boldacious,' a blend of 'bold' and 'audacious.'
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