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Scientists examining images from the Cassini craft think they may be closer to showing there is liquid hydrocarbon on Saturn's moon Titan. Radar images of a strip of the moon, covering 1% of the surface, revealed dark patches which could indicate liquid methane or ethane.
2004-10-29
Moon Titan Saturn hydrocarbon methane ethaneScientists will comb data sent back from Titan by the Huygens probe for the chemical signature of life in a bid to identify the moon's source of methane. Methane is constantly destroyed by UV light so there must be a source within Titan to replenish the atmosphere. Life is a possible - though some think unlikely - source of this hydrocarbon along with geological processes. The surface is too cold for biology, but microbes could...
2005-01-25
Moon extraterrestrial life Titan Saturn methane HuygensResearchers have long speculated that Titan might harbour open bodies of liquid methane - and the 235km by 75km target is the best candidate to date. But they are being cautious about interpreting the feature, which has what looks to be a smooth shoreline. The scientists say the object could simply be dark, solid deposits caught in a sinkhole of volcanic caldera.
2005-06-29
Moon Cassini Titan Saturn methane lakeHopes of finding hydrocarbon oceans on Saturn's smoggy moon, Titan, appear to be dashed, scientists report in Nature. The moon's atmosphere is thick with methane and ethane, prompting speculation that lakes or oceans of these chemicals may sit on the surface.
2005-08-04
Moon atmosphere Titan Saturn methane ethane HuygensPart of it comes through methane made by the animals as they digest food. So which farm animals expel the most methane?
2009-10-28
methane greenhouse gas climate change cowThe researchers argue that the methane must therefore be created by geologic or chemical processes, or it is a by-product of microbial life.
2009-12-09
Mars extraterrestrial life methane meteorite astrobiology