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Latest Extraterrestrial atmospheres Stories

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2005-03-09 08:05:00

Arizona's Jonathan Lunine presented a lecture entitled "Titan: A Personal View after Cassini's first six months in Saturn orbit" at a NASA Director's Seminar on January 24, 2005. Lunine discusses the question of missing methane in an edited transcript of Part 2. Astrobiology Magazine -- "How much methane is really in the surface and atmosphere of Titan today? How much has been there in the history of Titan?Methane is a carbon atom surrounded by four hydrogen atoms, and it can be broken apart...


Word of the Day
siliqua
  • A Roman unit of weight, 1⁄1728 of a pound.
  • A weight of four grains used in weighing gold and precious stones; a carat.
  • In anatomy, a formation suggesting a husk or pod.
  • The lowest unit in the Roman coinage, the twenty-fourth part of a solidus.
  • A coin of base silver of the Gothic and Lombard kings of Italy.
'Siliqua' comes from a Latin word meaning 'a pod.'
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