Quantcast

Latest Aura Stories

8e26abb0f6e2789a6b670e7a91af077f1
2008-05-27 11:20:00

Clouds have typically posed a problem to scientists using satellites to observe the lowest part of the atmosphere, where humans live and breathe, because they block the satellite's ability to capture a clear, unobstructed view of Earth's surface. It turns out, however, that these "obstructions" are worth a closer look, as clouds and their characteristics actually serve a valuable role in Earth's climate. That closer look is now available by satellites comprising the Afternoon Constellation,...

9ef3505b65f1f5ed7db6c01da92e833b1
2007-12-14 07:50:54

Weather broadcasts have long been a staple for people planning their day. Now with the help of NASA satellites, researchers are working to broaden daily forecasts to include predictions of air quality, a feat that is becoming reality in some parts of the world. Some scientists predict that an operational system of routine, global forecasts of air pollution near the ground, where it affects human health, is only a few years away. Such a system could prove useful in efforts to improve air...

29918316d04115c15557fb58aaa86d5c1
2007-10-22 08:40:55

Air pollution is becoming one of the biggest dangers for the future of the planet, causing premature deaths of humans and damaging flora and fauna. With their vantage point from space, satellites are the only way to carry out effective global measurements of air-polluting emissions and their transboundary movement. Scientists and researchers from around the world gathered at ESRIN, ESA's Earth Observation Centre in Frascati, Italy, last week to discuss the contribution of satellite data in...

181b0d0015457c18ed6dc3ba018fc84c1
2007-09-14 18:10:00

NASA scientists will join researchers from around the world to celebrate the 20th anniversary of the Montreal Protocol, an international treaty designed to reduce the hole in Earth's protective ozone layer. The United Nations Environment Programme will host the meeting from Sept. 23 to 26 in Athens, Greece. NASA scientists study climate change and research the timing of the recovery of the ozone layer. "The Montreal Protocol has been a resounding success," said Richard Stolarski, a speaker at...

79f7cf9060ff747cbd7f063184a4b7ed1
2006-10-10 12:54:56

What does a garden have to do with the chemistry of the atmosphere and air quality? One of the newest exhibits at NASA Goddard's Visitor Center, Greenbelt, Md., is a project related to NASA's Aura satellite. Aura is currently studying atmospheric chemistry and air pollution from space.  The new Aura Ozone Monitoring Garden is used to study air quality from the ground by seeing how ozone in the air damages the leaves of certain plants. During the summer months of intense sunlight, the...

977f60115bca214868f82e1832f29f241
2006-09-26 08:45:00

A NASA and university study of ozone and carbon monoxide pollution in Earth's atmosphere is providing unique insights into the sources of these pollutants and how they are transported around the world. For the first time, NASA and university researchers used simultaneous observations of carbon monoxide and ozone from space to differentiate between ozone produced from human activity and ozone produced from natural sources. Ozone is an important pollutant and a major component of smog. At high...

3b3b2560d709874442016d3744e1bc0f1
2006-08-06 08:55:00

By Deborah Zabarenko BELTSVILLE, Maryland -- The weather outside was frightful: hot, humid and layered with a haze of pollution so thick it seemed it could be cut with a machete -- a perfect day to use balloons and a satellite to monitor some bad air. On the last full day of a monthlong heat wave, when most sensible people might prefer to be sitting in the shade with a cool drink, climate scientists were out in a sunny field, coordinating the launch of a weather balloon with a satellite...

2006-07-24 11:02:18

(Corrects to include dropped line in first paragraph) CHICAGO, July 18 (Reuters) - People who experience vision abnormalities before a migraine strikes are at double the risk of heart disease compared to people who do not get the debilitating headaches, a study said on Tuesday. The "aura" that immediately precedes a migraine affects sufferers differently, with some combination of dizziness, flashes or spots of light, and temporary loss of vision. Among the 28 million Americans,...

2006-07-18 15:00:00

CHICAGO (Reuters) - People who experience vision of heart disease compared to people who do not get the debilitating headaches, a study said on Tuesday. The "aura" that immediately precedes a migraine affects sufferers differently, with some combination of dizziness, flashes or spots of light, and temporary loss of vision. Among the 28 million Americans, mostly women, who suffer migraines, fewer than one-third experience the aura beforehand that was linked in the study to the increased risk...

2006-07-04 11:25:00

NEW YORK -- Adults who suffer from bouts of migraine without aura have slightly narrower retinal blood vessels, or arterioles, than adults without migraine, research shows. The finding supports the hypothesis that microvascular disease may be associated with certain types of migraine, investigators note in a report in the journal Headache. Dr. Gerald Liew from the University of Sydney, Australia and colleagues used recently developed quantitative techniques to measure small vessel calibers...


Word of the Day
bibliopole
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'
Related