Tholins [after the ancient Greek word θολός (tholós) meaning `not clear`] are heteropolymer molecules formed by solar ultraviolet irradiation of simple organic compounds such as methane or ethane. Tholins do not form naturally on modern-day Earth, but are found in great abundance on the surface of icy bodies in the outer solar system. They.....
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http://en.wikipedia.org/wiki/Tholin
Credit: Southwest Research Institute Any member of a family of large, complex organic molecules that form by the action of ultraviolet light on simpler organic molecules. Tholins are thought to be among the chemical precursors to life. Tholins, which are generally reddish brown in color, do n...
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http://www.daviddarling.info/encyclopedia/T/tholin.html
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