Etana: Perbedaan antara revisi

: {{chem2|CH|3}}• + •{{chem2|CH|3}} → {{chem2|C|2|H|6}}

 

It was once widely hypothesized[by whom?] that ethane produced in this fashion on Titan rained back onto the moon's surface, and over time had accumulated into hydrocarbon seas or oceans covering much of the moon's surface. Infrared telescopic observations cast significant doubt on this hypothesis, and the Huygens probe, which landed on Titan in 2005, failed to observe any surface liquids, although it did photograph features that could be presently dry drainage channels. In December 2007 the Cassini probe found at least one lake at Titan's south pole, now called Ontario Lacus because of the lake's similar area to Lake Ontario on Earth (approximately 20,000 km2). Further analysis of infrared spectroscopic data presented in July 2008[28] provided stronger evidence for the presence of liquid ethane in Ontario Lacus.

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