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Biologically Enhanced Energy and Carbon Cycling on Titan?

Grinspoon, David H.; Schulze-Makuch, Dirk

With the Cassini-Huygens Mission in orbit around Saturn, the large moon Titan, with its reducing atmosphere, rich organic chemistry, and heterogeneous surface, moves into the astrobiological spotlight. Environmental conditions on Titan and Earth were similar in many respects 4 billion years ago, the approximate time when life originated on Earth. …