Monday, January 3, 2011

Inside Earth's "sister planet" the new dynamic.

<P> According to the British Broadcasting Corporation (BBC) 10 月 12th, for human beings, Venus is a mysterious planet, surrounded by all kinds of mysterious, deep in the dense clouds of carbon dioxide in the form so that we .it is difficult to understand. .However, the European Space Agency, "Venus Express," a set of detectors carried by rail equipment is proving its ability to fog through the layers of the atmosphere of Venus, the formation of the earth this "sister planet," the new dynamic map. .</ P> <P> Venus are still many mysteries to be solved </ P> <P> gathered in Pasadena, California Planetary Sciences Sector (Division of Planetary Sciences), scientists said this week, "Venus Express" probe .back data provide unprecedented detail about the atmosphere of Venus, the bottom stratum for the first time its got some idea. .Scientists hope the "Venus Express" will help them answer questions about the Venus atmospheric composition and dynamics of the basic issues, while important to uncover mysteries of Venus: Venus driven "super rotation" What is the reason? .Highest in the clouds stop UV-absorbing material, what is strange? .</ P> <P> Currently, scientists are delighted to find that "Venus Express" probe all the instruments are functioning normally, and constantly sent back to Earth a lot of valuable data. .In "Venus Express," Greenspan exploration mission scientist David Pang said: "The probe sent back data can be called a repository of information that we have to do is open the vault, went to check something good." </ .P> <P> starting from April this year, "Venus Express" probe has been looking for valuable information around Venus, 7 on the detector instrument by careful spectroscopic detection of Venus: from the ultraviolet, visible .to the infrared, and even radio wavelengths. ."Venus Express," project scientist Dr. Hakan Swede Herm said: "Our main objective is to conduct extensive research on the atmosphere of Venus." The instrument can be advanced on the implementation of different depth and detailed observations of Venus. .For example, the visible and infrared thermal imaging spectrometer (VIRTIS) will enable scientists penetrate the opaque upper atmosphere of Venus to study its chemical properties below. .Imaging spectrometer will take full advantage of "infrared electromagnetic spectrum" (infrared windows) the implementation of "reconnaissance" of electromagnetic spectrum is a strip of carbon dioxide can not absorb the wavelength. .Swede Herm, said: "This process is like the first time we can penetrate the picket fence, I saw something." </ P> <P> Venus is most like the status quo, "Archean Earth" </ .P> <P> different with Mars, Venus, Earth's closest planetary neighbor is, but for humans is still relatively mysterious. .Thick atmosphere hides the Venus tightly to make human beings are difficult to make in-depth exploration, but according to scientists estimate that Venus once had vast oceans, similar to that with the Earth, but then somehow miraculously Ocean disappeared. .To the "Venus Express" project scientist to support Frank Mills said: "Venus is most like the present situation 'Archean Earth' (Achaean Earth), then there is no life on Earth, the atmosphere is mainly carbon dioxide gas and a lot of sulfur. ."</ P> <P> eager scientists want to understand the evolutionary divergence of Venus, for example, how the oceans on Venus disappeared, and so on. .Dr. Mills said, the scientists found some clues may help to understand the role of sulfur dioxide in the atmosphere of Venus and quantity. .Once the oxidation of sulfur dioxide will produce sulfuric acid, sulfuric acid is the main component of the clouds of Venus, is also a greenhouse gas can. .This gas is a product of volcanic eruptions. .Previously, ground equipment and the "Pioneer" Venus spacecraft observed data show that sulfur dioxide in showing a gradual decline over time and then began an upward trend, suggesting that the volcanoes of Venus was not in the sleep state. .</ P> <P> double-eye vortex structure amazing </ P> <P> scientists last of Venus dates back to the detection of sulfur dioxide in 20 years. .But the visible and infrared thermal imaging spectrometer will provide scientists have long awaited the latest data in this regard. .At the same time, visible surveillance camera (VMC) may be able to uncover another mystery of Venus. .This camera can be the formation of visible and ultraviolet images of Venus. .In the visible range, the surface of Venus is still bleak, but in the ultraviolet range, a swirling weather patterns emerged. .It is not clear that this mode of composition. .Some scientists speculate may be aerosol or small crystals. .</ P> <P> Trondheim, according to Dr. Swede speculated: "This is some kind of UV-absorbing material, so than carbon dioxide." Greens Dr Pang said: "Scientists trying to identify this substance, but failed to .succeed, it is really very strange. we call 'unknown ultraviolet absorber'. "If the composition of the atmosphere of Venus is still not enough to cause people's curiosity, so scientists hope Venus Express probe will help explain why Venus than the following .planetary rotational speed. .Earth wind is blowing to the Eastern and Western, and in Venus, they seem only to the east wind, faster than speed of rotation of Venus. .</ P> <P> visible and infrared thermal imaging spectrometer also observed a peculiar double Venus Antarctic vortex structure of the eye. .Scientists do not know what causes this super-rotation, or even do not know how to describe. .Planet Venus Express project scientist 桑杰伊利马 Ye Boshi (Sanjay Limaye) is also full of suspicion: "Is not it affect the speed of rotation of Venus? Why it does not stop? We know nothing about these issues." </ P> <P .> Dr. Li Maye visible and infrared thermal imaging spectrometer sent back new pictures double vortex eye feel happy, this vortex flow structure looks like the two southern hemisphere cyclone (twin cyclone) General. .Dr. Li Maye said: "The 'Venus Express' detectors can help us confirm the depth and structure of the vortex, and the whole process is how to maintain the flow." With Venus Express back in the next few years, constantly updated data, scientists will .will be difficult to penetrate into the atmosphere of Venus has a new dynamic map. .Greens Dr Pang said: "According to our information currently available, the process is like a topographic map from the 19th century to the present transition of the weather channel." </ P> </ p>.

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