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The Pioneer Venus bus also carried two experiments, a neutral mass spectromenter and an ion mass spectrometer to study the composition of the atmosphere. With no heat shield or parachute, the bus survived and made measurements only to about 110 km altitude before burning up.
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nssdc.gsfc.nasa.gov/planetary/pioneer_venus.html
nssdc.gsfc.nasa.gov/planetary/pioneer_venus.html
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When Venus was first studied in modern times, scientists saw a beautiful world that was almost the size of Earth, and it had a thick cover of clouds. The picture to the right shows what Venus looks like when seen in ultra-violet light (UV shows more contrast in the clouds). ... Its composition is nearly all CO2:
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burro.astr.cwru.edu/stu/advanced/venus.html
burro.astr.cwru.edu/stu/advanced/venus.html
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Venus - Wikipedia, the free encyclopedia
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Venus is the second-closest planet to the Sun, orbiting it every 224.7 Earth days. The planet is named after Venus, the Roman goddess of love. After the Moon, it is the brightest natural object in th...
en.wikipedia.org/wiki/Venus
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Question: What is the composition of Venus? I can't find it anywhere. Kjones Answer: I've looked through several astronomy texts, and there are some guesses about the internal composition of Venus. ... In sum, current best guess is that the composition of Venus is similar to that of Earth, though probably not identical to...
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www.newton.dep.anl.gov/askasci/ast99/ast99032.htm
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Unfortunately, scientists have no direct knowledge about Venus' composition. Here on Earth, scientists use seismometers to study how seismic waves from earthquakes propagate through the planet. How these waves bounce and turn inside the Earth tell scientists about its composition.
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www.universetoday.com/guide-to-space/venus/composition-...
www.universetoday.com/guide-to-space/venus/composition-of-venus/
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Venus is made up of a central iron core and a rocky mantle, similar to the composition of Earth. Its atmosphere is mainly made up of carbon dioxide (96%) and nitrogen (3%), with small amounts of other gases.
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coolcosmos.ipac.caltech.edu/cosmic_kids/AskKids/venus_c...
coolcosmos.ipac.caltech.edu/cosmic_kids/AskKids/venus_composition.shtml
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It is proposed that the visible cloud deck on Venus is composed of droplets of sulfuric acid. These are formed by the very ... Venus Lower Atmospheric Composition: Analysis by Gas Chromatography. V. I. OYAMA, G. C. CARLE, F. WOELLER, and J. B. POLLACK (1979); Science 203, 802-805 ; | Abstract » | PDF »;
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www.sciencemag.org/cgi/content/abstract/182/4117/1132
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Composition and Structure of the Venus Atmosphere: Results from Pioneer Venus. J. H. HOFFMAN, R. R. HODGES JR., M. B. MCELROY, T. M. DONAHUE, and M. KOLPIN (1979); Science 205, 49-52 ; | Abstract » | PDF »...
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www.sciencemag.org/cgi/content/abstract/203/4382/800
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Named for the Roman goddess, Venus is, after the Moon, the most brilliant natural object in the night sky. Venus comes closer ... atmospheric composition carbon dioxide, 96%; molecular nitrogen, 3.5%; water, 0.02%; trace quantities of carbon monoxide, molecular oxygen, sulfur dioxide, hydrogen chloride, and other gases...
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www.britannica.com/EBchecked/topic/625665/Venus
www.britannica.com/EBchecked/topic/625665/Venus
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