Upper Atmosphere Current Events | Upper Atmosphere News | 3
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Venus Express preliminary investigations bring encouraging news
Following the announcement of the Venus Express launch delay due to particulate contamination found in the launcher fairing where the spacecraft was installed, ESA staff and industry teams have started an inspection of the spacecraft. view more (2005-10-26)
Clemson scientists launch rockets to test atmospheric conditions
Clemson University space physicists have traveled around the world to launch rockets to test atmospheric conditions. view more (2009-02-27)
The fine line between stability and instability -- when do gas giants reach the point of no return?
Planetary scientists at UCL have identified the point at which a star causes the atmosphere of an orbiting gas giant to become critically unstable, as reported in this week's Nature (December 6). view more (2007-12-06)
New research study reveals origin of volcano's carbon-based lavas
Scientists studying the world's most unusual volcano have discovered the reason behind its unique carbon-based lavas. view more (2009-05-07)
University of Toronto study shows climate change will lead to less ultraviolet radiation over northern high latitudes
Physicists at the University of Toronto have discovered that changes in the Earth's ozone layer due to climate change will reduce the amount of ultraviolet (UV) radiation in northern high latitude regions such as Siberia, Scandinavia and northern Canada. view more (2009-09-16)
Argon conclusion: Researchers reassess theories on formation of Earth's atmosphere
Geochemists at Rensselaer Polytechnic Institute are challenging commonly held ideas about how gases are expelled from the Earth. Their theory, which is described in the Sept. 20 issue of the journal Nature, could change the way scientists view the formation of Earth's atmosphere and those of our distant neighbors, Mars and Venus. view more (2007-09-20)
Winds of 320 000 kilometres per hour on the Sun
The SUMER instrument on the ESA-NASA SOHO spacecraft has measured amazing wind speeds during its observations of the Sun. It sets a new record in its examination of two loops of gas arching in the solar atmosphere, where NASA`s TRACE satellite spotted bright blobs of gas. Shifts in the wavelength of ultraviolet light from highly ionized neon... view more... (2002-05-17)
Fears about complications shouldn't drive antibiotic prescribing
Antibiotics are not justified to reduce the risk of complications after upper respiratory tract infection, sore throat, or ear infection, finds a study published on bmj.com today. view more (2007-10-19)
Scientist proposes explanation for puzzling property of night-shining clouds at the edge of space
An explanation for a strange property of noctilucent clouds--thin, wispy clouds hovering at the edge of space at 85 km altitude--has been proposed by an experimental plasma physicist at the California Institute of Technology (Caltech), possibly laying to rest a decades-long mystery. view more (2008-09-26)
How rusty is the Earth?
An iron object lying around outside quickly turns rusty. Iron metal always has to be combined with some other elements or coated with paint to stop it corroding. The reason for this is that iron metal is unstable in the presence of the oxygen in the Earth's atmosphere. It reacts with the iron to produce ferric iron, a form of iron that exists in... view more... (2004-06-10)
What is the clinical character of Fitz-Hugh-Curtis syndrome?
Fitz-Hugh-Curtis syndrome is characterized by inflammation in perihepatic capsules with concomitant pelvic inflammation. The pain in the right upper abdomen appeared as the main symptom. view more (2008-12-23)
Rich Man, Poor Man: Study shows body language can indicate socioeconomic status
Socioeconomic status (SES) is determined by a number of factors such as wealth, occupation and schools attended. SES influences the food we eat, hobbies we participate in and can even have an impact on our health. view more (2009-02-05)
Tibet Provides Passage for Chemicals to Reach the Stratosphere
NASA and university researchers have found that thunderstorms over Tibet provide a main pathway for water vapor and chemicals to travel from the lower atmosphere, where human activity directly affects atmospheric composition, into the stratosphere, where the protective ozone layer resides. view more (2006-05-10)
PhD student filters water vapour information from satellite data
PhD student Rüdiger Lang has developed a method to obtain information about water vapour from satellite data not specifically measuring this. The research is part of a project from the FOM Institute for Atomic and Molecular Physics (AMOLF), the Space Research Organisation Netherlands (SRON) and the Free University of Amsterdam. Water vapour... view more... (2002-10-24)
HOW TREES CHANGED THE WORLD
Before 380 million years (Ma) ago, the continents had only patches of mosses and algae with no tree cover. The effect of the evolution of trees (large vascular plants with deep, extensive roots) changed the world for ever, according to Dr Robert Berner (Yale University). He presents his findings at Earth Systems Processes, a multidisciplinary... view more... (2001-06-21)
Climate change and atmospheric circulation will make for uneven ozone recovery
Earth's ozone layer should eventually recover from the unintended destruction brought on by the use of chlorofluorocarbons (CFCs) and similar ozone-depleting chemicals in the 20th century. view more (2009-04-13)
Scientists want to solve puzzle of excess water vapor near cirrus clouds
A number of researchers in recent years have reported perplexing findings of water vapor at concentrations as much as twice what they should be in and around cirrus clouds high in the atmosphere, a finding that could alter some conclusions about climate change. view more (2006-12-01)
Rising carbon dioxide levels increase risks to satellites
Climate change is widely attributed to the build-up of greenhouse gases, such as carbon dioxide, in the Earth's atmosphere. However, scientists from the School of Engineering Sciences at the University of Southampton have shown that the impact of carbon dioxide is being felt in space too. view more (2005-04-18)
European satellites provide new insight into ozone-depleting chemical species
Using data from the MIPAS and GOME-2 satellite instruments, scientists have for the first time detected important bromine species in the atmosphere. view more (2009-02-26)
New Ariane launcher all set for November liftoff
The launch date of 28 November has been announced for Europe's new 10-tonne launcher. Preparations are well underway at Europe's spaceport in French Guinea where a series of simulated countdowns have been successfully carried out. The new Ariane 5, dubbed Ariane 10 tonnes, consists of a new cryogenic upper stage powered by the tried and trusted... view more... (2002-11-11)
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