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Latest Planetary atmospheres Stories

Venus May Actually Be Cold Enough For Snow
2012-10-01 13:31:29

Lee Rannals for redOrbit.com - Your Universe Online The European Space Agency said on Monday that Venus Express has spotted an area of Venus that may be cold enough to produce carbon dioxide snow. Venus is known for its thick, carbon dioxide atmosphere, but also its hot surface. Due to its size, it is often referred to as Earth's twin, despite not having the life-giving features Earth provides. In a new analysis based on five years of Venus Express observations, scientists have...

Titan Seasons Documented
2012-09-28 21:57:08

Lee Rannals for redOrbit.com — Your Universe Online As the fall season starts to ramp up here in the U.S., observations show Saturn's moon Titan has its own drastic seasonal changes. Astronomers presented findings at the European Planetary Science Congress on Friday about Titan's seasonal changes for the past 30 years. “As with Earth, conditions on Titan change with its seasons," Dr. Athena Coustenis from the Paris-Meudon Observatory in France, who analyzed the data, said...

Meteor Smoke Helps Form Noctilucent Clouds
2012-08-08 13:33:19

Watch the Video : [ Meteor Smoke Makes Strange Clouds ] Lee Rannals for redOrbit.com - Your Universe Online Bits of "meteor smoke" have been detected in a noctilucent cloud (NLC), supporting an already existing theory. Noctilucent clouds were first noticed in 1885 about two years after the eruption of Krakatoa. Ash from the volcano caused great sunsets, making it a global past time for people to sit and look up at the sky at dust. A German named T.W. Backhouse, who is credited...

Titan In The Shadows Of Saturn’s Rings
2012-06-20 04:01:17

Titan appears to be strung like a bead on Saturn´s rings, which cast shadows onto the southern hemisphere of the gas giant in this beautiful image from Cassini. Faint but exquisite detail in the gas giant´s upper atmosphere paints a tranquil scene. A thin band of bright white ammonia ice clouds is etched into the planet´s disc towards the top of the image while clouds dotted below are faded scars of a huge storm that raged across the planet through much of 2011. Shadows...

DC3: Chemistry Of Thunderstorms
2012-05-09 03:19:58

NASA researchers are about to fly off on a campaign that will take them into the heart of thunderstorm country. The Deep Convective Clouds and Chemistry (DC3) field campaign will use an airport in Salina, Kan., as a base to explore the impact of large thunderstorms on the concentration of ozone and other substances in the upper troposphere. The campaign is being led by the National Center for Atmospheric Research in Boulder, Colorado, and is funded by the National Science Foundation (NSF)...

2012-04-03 04:11:06

In a world first, the sounds of Mars and Venus are revealed as part of a planetarium show in Hampshire this Easter. Despite many years of space exploration, we have no evidence of the sound of other planets. While most planetary probes have focused on imaging with cameras and radar and a couple have carried microphones, none of them successfully listened to the sound of another world. Now, a team from the University of Southampton, led by Professor Tim Leighton, has the answer. Using...

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2012-03-29 11:51:03

Fossilized raindrop impressions have shown scientists evidence of greenhouse gases in Earth´s early atmosphere. This means between 2 and 4 billion years ago, the sun may have burned 30% less brightly than it does now. “Because the sun was so much fainter back then, if the atmosphere was the same as it is today the Earth should have been frozen,” says Sanjoy Som, a postdoctoral researcher at NASA´s Ames Research Center. While the Earth should have been...

Image 1 - The Surprising Power Of A Solar Storm
2012-03-23 09:52:15

[ Watch the Video ] Solar storm dumps gigawatts into Earth's upper atmosphere A recent flurry of eruptions on the sun did more than spark pretty auroras around the poles.  NASA-funded researchers say the solar storms of March 8th through 10th dumped enough energy in Earth´s upper atmosphere to power every residence in New York City for two years. “This was the biggest dose of heat we´ve received from a solar storm since 2005,” says Martin Mlynczak of...

Earth's Prehistoric Multiple Atmospheres
2012-03-19 09:50:20

Earth´s early atmosphere may have flipped between two sates before oxygenation, according to a new study. Researchers at Newcastle University have published these findings in the journal Nature Geoscience. They found Earth´s early atmosphere would switch between a hydrocarbon-free state and a hydrocarbon-rich state. This kind of atmosphere, according to the researchers, is similar to that of Saturn´s moon, Titan. Referring to the two states as “organic haze”...

2012-03-05 23:25:56

Clouds have a profound effect on the climate, but we know surprisingly little about how they form. Erika Sundén, researcher at the University of Gothenburg, Sweden, has studied how extremely small cloud particles can dispose of excess energy. This knowledge is necessary to understand processes in the atmosphere that affect global climate change. The models that have been built to describe climate change contain a major source of uncertainty, namely the effects of clouds. The...


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...

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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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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Word of the Day
cock-a-hoop
  • Exultant; jubilant; triumphant; on the high horse.
  • Tipsy; slightly intoxicated.
This word may come from the phrase 'to set cock on hoop,' or 'to drink festively.' Its origin otherwise is unclear. A theory, according to the Word Detective, is that it's a 'transliteration of the French phrase 'coq a huppe,' meaning a rooster displaying its crest ('huppe') in a pose of proud defiance.' Therefore, 'cock-a-hoop' would 'liken a drunken man to a boastful and aggressive rooster.'
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