Episodic outgassing as the origin of atmospheric methane on Titan

  title={Episodic outgassing as the origin of atmospheric methane on Titan},
  author={Gabriel Tobie and Jonathan I. Lunine and Christophe Sotin},
Saturn's largest satellite, Titan, has a massive nitrogen atmosphere containing up to 5 per cent methane near its surface. Photochemistry in the stratosphere would remove the present-day atmospheric methane in a few tens of millions of years. Before the Cassini-Huygens mission arrived at Saturn, widespread liquid methane or mixed hydrocarbon seas hundreds of metres in thickness were proposed as reservoirs from which methane could be resupplied to the atmosphere over geologic time. Titan fly-by… Expand

Paper Mentions

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