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National Geographic's top 10 space pictures 2007

 

Alien life may be "weirder" than scientists think, report says. An artist's rendering depicts the NASA/ESA Huygens probe floating in a lake of methane on Saturn's moon Titan. A report issued on July 6 by the National Academy of Sciences said that extraterrestrial organisms might be even more bizarre than experts had previously predicted. The report concluded that scientists need to consider an expanded list of characteristics that define life, including so-called "weird" life-forms that may thrive where Earth organisms couldn't.

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