Upper Atmosphere Current Events | Upper Atmosphere News | 5
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New method for tracing metal pollution back to its sources
A new way of pinpointing where zinc pollution in the atmosphere comes from could improve pollution monitoring and regulation, says research out this week in the journal Analytical Chemistry. view more (2008-11-20)
Fat on chest and upper back increases risk of insulin resistance
Upper trunk fat -- deposits of fat on the chest and back -- is associated with an increased risk of insulin resistance, a condition that is a precursor of type 2 diabetes, according to a study led by researchers at the San Francisco VA Medical Center (SFVAMC). view more (2007-08-20)
Model gives clearer idea of how oxygen came to dominate Earth's atmosphere
A number of hypotheses have been used to explain how free oxygen first accumulated in Earth's atmosphere some 2.4 billion years ago, but a full understanding has proven elusive. view more (2005-08-09)
Successful Ariane 5 upper stage engine re-ignition experiment
A successful re-ignition of the Ariane 5 upper stage engine performed during the most recent mission has consolidated Ariane 5's readiness for the launch of the Jules Verne Automated Transfer Vehicle. view more (2007-10-23)
Calculations favor reducing atmopshere for early Earth
Using primitive meteorites called chondrites as their models, earth and planetary scientists at Washington University in St. Louis have performed outgassing calculations and shown that the early Earth's atmosphere was a reducing one, chock full of methane, ammonia, hydrogen and water vapor. view more (2005-09-08)
Scientists pinpoint the 'edge of space'
Where does space begin? Scientists at the University of Calgary have created a new instrument that is able to track the transition between the relatively gentle winds of Earth's atmosphere and the more violent flows of charged particles in space - flows that can reach speeds well over 1000 km/hr. And they have accomplished this in unprecedented... view more... (2009-04-10)
Brookhaven Scientists Take Off for Southeastern Pacific Climate Study
During October and November 2008, some 150 scientists from 40 institutions in eight nations - including scientists from the U.S. Department of Energy's (DOE) Brookhaven National Laboratory - will take part in an international field experiment designed to make observations of critical components of the climate system of the southeastern Pacific. view more (2008-10-07)
What should we do when esophageal perforation occurs?
Management of ingested foreign bodies is a common clinical encounter. Complications of this pathology are dependent on a patient's age, the nature and localization of the foreign body, the presence of a perforation, and initial management procedures. view more (2008-03-19)
The making of an Ariane 5 launch
As Ariane 5 sped into space carrying Rosetta, it was easy to forget that behind this and every launch is a cast of hundreds. These people have been working for many months to prepare Europe's Spaceport in Kourou, French Guiana, for these brief minutes of excitement. Considering the hundreds of millions of kilometres that Rosetta will eventually... view more... (2004-03-03)
Ozone layer depletion levelling off
By merging more than a decade of atmospheric data from European satellites, scientists have compiled a homogeneous long-term ozone record that allows them to monitor total ozone trends on a global scale - and the findings look promising. view more (2009-09-22)
Anti-depressant drugs can double risk of gastrointestinal bleeding
New research shows that selective serotonin reuptake inhibitors (SSRIs), a group of drugs commonly used to treat depression, may double the risk of gastrointestinal bleeding. view more (2007-10-09)
Confirmed - deforestation plays critical climate change role
Dr Pep Canadell, from the Global Carbon Project and CSIRO Marine and Atmospheric Research, says today in the journal Science that tropical deforestation releases 1.5 billion tonnes of carbon each year into the atmosphere. view more (2007-05-14)
Patients with mild to moderate OSA may benefit from exercise
Practicing certain tongue and pharyngeal exercises may reduce symptoms of mild to moderate obstructive sleep apnea (OSA), according to new research being published in the second issue for May of the American Journal of Respiratory and Critical Care Medicine. view more (2009-05-07)
Researchers identify key step bird flu virus takes to spread readily in humans
Since it first appeared in Hong Kong in 1997, the H5N1 avian flu virus has been slowly evolving into a pathogen better equipped to infect humans. The final form of the virus, biomedical researchers fear, will be a highly pathogenic strain of influenza that spreads easily among humans. view more (2007-10-05)
SRI Logo SRI International Announces Findings from New Upper Atmospheric Radar System Built for Scientific Research
SRI International, an independent nonprofit research institute, announced today that early scientific results are now available from the Advanced Modular Incoherent Scatter Radar (AMISR), a modular, transportable radar system funded by the National Science Foundation (NSF) that has recently completed the first two years of operation. view more (2009-06-02)
Atmosphere threatened by pollutants entering ocean, prof says
A large quantity of nitrogen compounds emitted into the atmosphere by humans through the burning of fossil fuels and the use of nitrogen fertilizers enters the oceans and may lead to the removal of some carbon dioxide from the atmosphere. view more (2008-05-16)
Thawing permafrost a significant source of carbon
Permafrost, permanently frozen soil, isn't staying frozen and a type of soil called loess contained deep within thawing permafrost may be releasing significant, and previously unaccounted for, amounts of carbon into the atmosphere. view more (2006-06-16)
Space shuttle science shows how 1908 Tunguska explosion was caused by a comet
The mysterious 1908 Tunguska explosion that leveled 830 square miles of Siberian forest was almost certainly caused by a comet entering the Earth's atmosphere, says new Cornell University research. view more (2009-06-25)
Cluster Quartet Probes the Secrets of the Black Aurora
Swedish and British researchers have used the European Space Agency`s Cluster spacecraft to unveil the mysteries of the "black aurora", a strange electrical phenomenon that generates dark, empty regions adjacent to the visible Northern and Southern Lights. The new results, to be announced today at a meeting of the American Geophysical Union in San... view more... (2001-12-10)
Sell-by date "arbitrary" on some food packaging
New research on untreated green olives has found that products with a stated shelf-life of 2-3 years can be 'unacceptable' long before their sell-by date. The study, published in the Journal of the Science of Food and Agriculture, looked at the growing trend towards using polyethylene pouches which are vacuum-packed, filled with brine or packed in... view more... (2004-04-06)
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