File:NASA - Propylene on Titan.webm
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[edit]DescriptionNASA - Propylene on Titan.webm |
With a thick atmosphere, clouds, a rain cycle and giant lakes, Saturn's large moon Titan is a surprisingly Earthlike place. But unlike on Earth, Titan's surface is far too cold for liquid water - instead, Titan's clouds, rain, and lakes consist of liquid hydrocarbons like methane and ethane (which exist as gases here on Earth). When these hydrocarbons evaporate and encounter ultraviolet radiation in Titan's upper atmosphere, some of the molecules are broken apart and reassembled into longer hydrocarbons like ethylene and propane. NASA's Voyager 1 spacecraft first revealed the presence of several species of atmospheric hydrocarbons when it flew by Titan in 1980, but one molecule was curiously missing - propylene, the main ingredient in plastic number 5. Now, thanks to NASA's Cassini spacecraft, scientists have detected propylene on Titan for the first time, solving a long-standing mystery about the solar system's most Earthlike moon. This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/goto?11339 Like our videos? Subscribe to NASA's Goddard Shorts HD podcast: http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html Or find NASA Goddard Space Flight Center on facebook: http://www.facebook.com/NASA.GSFC Or find us on Twitter: https://twitter.com/NASAGoddard |
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Source | YouTube: NASA – View/save archived versions on archive.org and archive.today |
Author | NASA Goddard |
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[edit]Public domainPublic domainfalsefalse |
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ![]() |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:53, 30 September 2013 | 3 min 57 s, 1,280 × 720 (55.46 MB) | YtUPt (talk | contribs) | Imported from http://www.youtube.com/watch?v=IN0SbMeOGIA |
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