... the other hand, scientists believe lakes of ethane exist that contain dissolved methane. Titan's methane, through continuing photochemistry, is converted to ethane, acetylene, ethylene, and (when combined with nitrogen) hydrogen cyanide. The last is an especially important molecule; it is a building block of amino acids. The Voyager spacecrafts were not able to penetrate the thick layers of clouds but they did reveal ... to the telescope's viewing angle of the poles and the thick haze near the edge of the disk. Their image- resolution (that is, the smallest distance seen in detail) with ...

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