A Moon Of Saturn May Have 'Tropical' Lakes - Spokane, North Idaho News & Weather KHQ.com

A Moon Of Saturn May Have 'Tropical' Lakes

CNN.COM - They might not be fit for humans to swim in, but "tropical" lakes may exist on one of Saturn's moons that could harbor tiny organisms.

Scientists report Wednesday in the journal Nature that the moon Titan may have methane lakes among the dunes that pervade the tropics, the region of the moon between 20 degrees of latitude north and 20 degrees of latitude south.

Like Earth, Titan has clouds, rain and lakes, though they're made up of methane instead of water.

Scientists theorize that the conditions on Titan, which is the only moon in our solar system with an atmosphere, are capable of harboring microbial life, suggesting that organisms could live in methane lakes, as they do in water lakes on Earth.

Until recently, Titan's lakes have been observed only outside the tropical region, above 50 degrees north and below 50 degrees south. Scientists analyzed spectra of Titan's tropics gathered by the Cassini spacecraft between October 2004 and December 2008, which indicate a dark surface consistent with liquid methane. click here to read more

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