Viva Origino
Online ISSN : 1346-6933
Print ISSN : 0910-4003
Volume 43 , Issue 1
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  • Jun Kawai, Yoko Kebukawa, Kensei Kobayashi
    2015 Volume 43 Issue 1 Pages 1-10
    Published: 2015
    Released: December 04, 2021

      Titan is the largest satellite of Saturn, which has dense atmosphere of nitrogen and methane and liquid hydrocarbon lakes on its surface, is one of the most interesting bodies for astrobiologists. A great number of laboratory simulation experiments have been conducted to understand possible chemical evolution pathways occurring in Titan’s atmosphere, and complex organic compounds sometimes referred to as tholins were formed in them. Furthermore, it is suggested that biomolecules such as amino acids could be derived from tholins. In this paper, we reviewed Titan’s organic chemistry observed in Voyager and Cassini-Huygens missions, together with laboratory experiments simulating possible organic reactions in Titan atmosphere and liquidosphere (corresponding to the hydrosphere on Earth), and discuss the possibility of generation of life on Titan.

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