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Latest Earth's atmosphere Stories

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2009-10-23 14:29:18

Right now, the Moon is a ghost town. Nothing stirs. Here and there, an abandoned Apollo rover "” or the dusty base of a lunar lander "” linger as silent testimony to past human activity. But these days, only occasional asteroid impacts disrupt the decades-long spell of profound stillness. And this stillness presents scientists with an important opportunity. Currently, the Moon's tenuous atmosphere is relatively undisturbed. But that won't be true for long. NASA is planning to...

2009-10-09 05:45:00

HAMPTON, Va. Oct. 8 /PRNewswire-USNewswire/ -- A group of NASA scientists and engineers are in the midst of an unusual field campaign in one of the world's driest places to learn more about how water vapor controls the climate of the planet. The team from NASA's Langley Research Center in Hampton, Va., are in the Atacama Desert in Chile, using a new instrument to observe a band of infrared radiation activity of the atmosphere that is thought to account for half of all Earth's cooling...

2009-10-06 14:14:08

"Blue haze," a common occurrence that appears over heavily forested areas around the world, is formed by natural emissions of chemicals, but human activities can worsen it to the point of affecting the world's weather and even cause potential climate problems, according to a study led by a Texas A&M University researcher. Renyi Zhang, professor of atmospheric sciences who has studied air chemistry for more than 20 years, says blue haze (tiny particles or aerosols suspended in the air) can...

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2009-09-16 05:40:00

Observations by the European Space Agency's Venus Express mission have provided strong new evidence that the solar wind has stripped away significant quantities of water from Earth's twin planet. The data also shed new light on the transfer of trace gases in the Venusian atmosphere and wind patterns.  The results will be presented at the European Planetary Science Congress in Potsdam, Germany, on Wednesday September 16. The SPICAV and VIRTIS instruments carried by the spacecraft have...

2009-08-27 14:55:00

Our sun does not radiate evenly. The best known example of radiation fluctuations is the famous 11-year cycle of sun spots. Nobody denies its influence on the natural climate variability, but climate models have, to-date, not been able to satisfactorily reconstruct its impact on climate activity.Researchers from the USA and from Germany have now, for the first time, successfully simulated, in detail, the complex interaction between solar radiation, atmosphere, and the ocean. As the scientific...

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2009-08-18 09:39:37

U.S. Department of Energy research shows eastern China's air pollution during the past 50 years has reduced the amount of light rainfall by 23 percent. The study's results, officials said, suggest bad air quality might be affecting that country's ability to raise crops, as well as contributing to health and environmental problems. The study, led by atmospheric scientist Yun Qian at the Pacific Northwest National Laboratory, links for the first time high levels of air pollutants with...

2009-08-18 12:13:18

When Planet Earth was just cooling down from its fiery creation, the sun was faint and young. So faint that it should not have been able to keep the oceans of earth from freezing. But fortunately for the creation of life, water was kept liquid on our young planet. For years scientists have debated what could have kept earth warm enough to prevent the oceans from freezing solid. Now a team of researchers from Tokyo Institute of Technology and University of Copenhagen's Department of Chemistry...

57b4c3d8e5c645806944f60ec1938675
2009-08-06 14:36:17

A previously unrecognized player in the process by which gases produced by trees and other plants become aerosols"”microscopically small particles in the atmosphere"”has been discovered by a research team led by scientists at the California Institute of Technology (Caltech).Their research on the creation and effects of these chemicals, called epoxides, is being featured in this week's issue of the journal Science.Paul Wennberg, the R. Stanton Avery Professor of Atmospheric...

e1a0ff7e18608abd44e27ac37bddcfa41
2009-07-24 11:25:00

The air in Beijing during the 2008 Olympics was cleaner than the previous year's, due to aggressive efforts by the Chinese government to curtail traffic, increase emissions standards and halt construction in preparation for the games, according to a Cornell study.Led by Max Zhang, assistant professor of mechanical and aerospace engineering, the study indicates that such measures as regulating traffic density and encouraging public transportation can have a significant impact on local air...

2009-07-16 14:03:07

The U.S. space agency's Aura spacecraft began its sixth year of research this week, studying Earth's ozone layer, air quality and climate. The satellite, launched July 15, 2004, from California's Vandenberg Air Force Base, has transmitted data that is helping scientists address global climate change issues such as global warming; the distribution and chemistry of polluted air, and ozone depletion in the Earth's stratosphere, space agency scientists said. NASA's Goddard Space Flight Center in...


Latest Earth's atmosphere Reference Libraries

sts-66
2012-05-12 09:22:57

Atlantis launched from Kennedy Space Center on November 3, 1994 at 11:59 AM EST and landed at Edwards AFB on November 14 at 7:33 AM PST. The shuttle orbited 174 times at an altitude of 164 nautical miles at an inclination of 57 degrees and travelled 4.5 million miles. The mission lasted 10 days, 22 hours, 34 minutes, and 2 seconds. This mission further advanced efforts to collect data about sun's energy output, chemical makeup of the Earth's middle atmosphere, and how these factors affect...

Weather Reference Library
2012-05-08 20:51:43

Important things to know when it comes to weather are the terms that a meteorologist uses on the television, radio or on a weather website.  The first term is Return flow. Sometimes you will hear a meteorologist use this term. The best way to understand this is to look at a weather map. When you see a High pressure center which is the blue H, look to the western side of that high pressure. This is where the warm moist air starts moving from the south back towards the north, which is why it...

22_1663f68fda000d8f11d5a4317e325607
2009-07-06 17:01:44

Arctic haze is a phenomenon that occurs in the atmosphere at high latitudes in the Arctic due to air pollution. What distinguishes Arctic haze from haze found elsewhere, is the ability of its chemical ingredients to endure in the atmosphere for a longer period of time compared to other pollutants. Due to limited snowfall, rain, or turbulent air to displace pollutants from the polar air in the spring, Arctic haze can continue for more than a month in the northern atmosphere. Arctic haze was...

Earth's Atmosphere
2004-10-19 04:45:44

Earth's Atmosphere -- Earth's atmosphere consists of nitrogen (78.1%) and oxygen (20.9%), with small amounts of argon (0.9%), carbon dioxide (variable, but around 0.035%), water vapor, and other gases. The atmosphere protects life on Earth by absorbing ultraviolet solar radiation and reducing temperature extremes between day and night. 75% of the atmosphere exists within 11km of the planetary surface. Temperature and the Atmospheric Layers The temperature of the Earth's atmosphere...

Sky
2004-10-19 04:45:44

Sky -- Although almost everyone have seen it, sky is hard to be defined precisely. Generally, sky is the space seen when one looks upward from the surface of a planet. Some people define sky as the denser gaseous zone of a planet's atmosphere. Clouds, rainbows and weather all occur amongst a planet's sky. In astronomy, the sky is divided into many regions, called constellations. The blue colour of the daytime sky results from the selective scattering of light rays. When the sunlight...

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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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