Latest Planetary atmospheres Stories

2009-07-14 16:00:00

Traveling to Los Angeles can be a hazardous undertaking. The buzzing coastal city at the very edge of the American frontier has long been a symbol of exploration and progress.

2009-06-24 14:28:13

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.

2009-06-13 10:45:00

Billion-year life extension for Earth also doubles the odds that advanced life will be found elsewhere in the universe.

2009-06-04 15:03:09

British scientists say large bombardments of meteorites four billion years ago might have made early Earth and Mars more habitable for life. Imperial College London researchers said millions of meteor strikes during what's called the Late Heavy Bombardment approximately 3.9 billion years pelted Earth

2009-06-02 09:10:00

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.

2009-05-07 13:27:52

An international team of geologists may have uncovered the answer to an age-old question - an ice-age-old question, that is. It appears that Earth's earliest ice age may have been due to the rise of oxygen in Earth's atmosphere, which consumed atmospheric greenhouse gases and chilled the earth.

2009-03-02 11:48:22

Using ESO's Very Large Telescope, astronomers have gained valuable new insights about the atmosphere of the dwarf planet Pluto.

2009-02-24 10:35:00

ESA’s Venus Express spacecraft has observed an eerie glow in the night-time atmosphere of Venus.

2009-02-10 20:10:00

The challenge: very precisely measure carbon dioxide in Earth's atmosphere all over the world, especially near Earth's surface.

2008-12-16 10:04:35

A new University of Colorado at Boulder study shows the periodic "breathing" of Earth's upper atmosphere that has long puzzled scientists is due in part to cyclic solar wind disturbances, a finding that should help engineers track satellites more accurately and improve forecasts for electronic communication disruptions.

Latest Planetary atmospheres Reference Libraries

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...

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...

Saturn's Moon Titan
2004-10-19 04:45:41

Saturn's moon Titan -- Titan is the planet Saturn's largest moon. It is larger than either of the planets Mercury or Pluto and is the second-largest moon in the solar system after Ganymede (it was originally thought to be slightly larger than Ganymede, but recent observations have shown that its thick atmosphere caused overestimation of its diameter). Titan was discovered on March 25, 1655 by the Dutch astronomer Christian Huygens, making it one of the first non-terrestrial moons to be...

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The word 'definiens' comes from the Latin word 'definire', 'to define'.