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Research By NASA Provides Guideline For Future Alien Life

Research By NASA Provides Guideline For Future Alien Life Search

NASA Astronomers searching the atmospheres of alien worlds for gases that might be produced by life can't rely on the detection of just one type, such as oxygen, ozone, or methane, because in some cases these gases can be produced...

Latest Atmospheric chemistry Stories

largest ozone hole over Antarctica
2014-08-21 03:50:52

Steve Cole and Kathryn Hansen, NASA NASA research shows Earth's atmosphere contains an unexpectedly large amount of an ozone-depleting compound from an unknown source decades after the compound was banned worldwide. Carbon tetrachloride (CCl4), which was once used in applications such as dry cleaning and as a fire-extinguishing agent, was regulated in 1987 under the Montreal Protocol along with other chlorofluorocarbons that destroy ozone and contribute to the ozone hole over...

2014-08-20 16:21:02

WASHINGTON, Aug. 20, 2014 /PRNewswire-USNewswire/ -- NASA research shows Earth's atmosphere contains an unexpectedly large amount of an ozone-depleting compound from an unknown source decades after the compound was banned worldwide. http://photos.prnewswire.com/prnvar/20081007/38461LOGO Carbon tetrachloride (CCl4), which was once used in applications such as dry cleaning and as a fire-extinguishing agent, was regulated in 1987 under the Montreal Protocol along with other...

2014-08-11 12:23:11

DUBLIN, Aug. 11, 2014 /PRNewswire/ -- Research and Markets has announced the addition of the "International Photoinitiator Industry (with focus on China) Report 2014" report to their offering. http://photos.prnewswire.com/prnh/20130307/600769 The Global and Chinese Photoinitiator Industry Report is a professional and in-depth study on the current state of the global Photoinitiator industry with a focus on the Chinese situation. The report provides a basic overview of the industry...

when a pine-scented molecule combines with ozone in the surrounding air, some of the free radicals created in the process grab oxygen with unprecedented speed
2014-02-27 06:28:35

April Flowers for redOrbit.com - Your Universe Online For atmospheric scientists, pine forests are magical places where coniferous trees give off pine-scented vapors. These vapors form particles, rapidly and seemingly out of nowhere. A new study from an international group of scientists illuminates the process by which gas wafting from coniferous trees creates particles that can reflect sunlight or promote cloud formation. Both are important climate feedbacks. The findings, led by the...

Ancient Earth Was Warmer Due To Forest Emissions And Wildfires
2014-02-06 04:13:00

[ Watch the Video: Wildfires Heated Up The Early Earth ] Lee Rannals for redOrbit.com - Your Universe Online According to a new study published in the journal Geophysical Research Letters, wildfires could explain why the Earth was so hot three million years ago. Researchers at Yale University found that volatile compounds released by ancient Earth’s forests and smoke from wildfires caused more global warming than atmospheric levels of carbon dioxide. This study provides evidence...

Air Pollution Increases Worldwide
2012-08-01 12:22:05

Atmospheric model calculates changes in air quality over the coming decades Hot summer days cause in large cities very seldom great happiness among inhabitants. On those days the air is highly polluted with automobile and industrial emissions what makes breathing difficult and unhealthy. According to the latest calculations of Max Planck scientist Andrea Pozzer this scenario could become true for most of world population in 2050 if no counteractive measures are taken. Especially China,...

2012-07-30 15:46:54

The destruction of atmospheric ozone can take place within newly forming Polar Stratospheric Clouds (PSCs), which serve as the battleground for manmade chlorofluorocarbons (CFCs) to attack and destroy ozone. These clouds form when clusters of frozen water "pick up" other atmospheric molecules such as methane, nitrogen oxides, and water molecules, similar to the way a snowball's girth increases as it rolls down a mountainside. Most previously established atmospheric models have assumed that a...

2012-07-09 17:11:50

Satellite measurements show that nitrogen dioxide in the lower atmosphere over parts of Europe and the US has fallen over the past decade. More than 15 years of atmospheric observations have revealed trends in air quality. As the world´s population increases, economies in many countries are also growing and populations are concentrating in large cities. With the use of fossil fuels still on the rise, pollution in large cities is also increasing. Nitrogen dioxide is an important...

It's All About The Dirt
2012-06-17 03:00:40

[ Watch the Video ] A new study by researchers at BYU, Duke and the USDA finds that soil plays an important role in controlling the planet´s atmospheric future. The researchers set out to find how intact ecosystems are responding to increased levels of carbon dioxide in the atmosphere. The earth´s current atmospheric carbon dioxide is 390 parts per million, up from 260 parts per million at the start of the industrial revolution, and will likely rise to more than 500 parts per...


Word of the Day
vermicular
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.
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