"Is the comet 2004MN4 still being tracked? I believe this has broken records, the higest an object has been on the Torino scale."
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Question
Does life really exist on Titan - one of the Saturn's moon?
No one knows. Titan is too cold to support the kinds of life we are familiar with, which are based on the presence of liquid water. We don't know if life is possible using the much colder hydrocarbon liquids on Titan, such as methane and ethane. Even if it is possible, we will need to develop experiments to determine if it is present -- an excellent challenge for future spacecraft missions to Titan. For more information you might try this story from Space.com [http://www.space.com/scienceastronomy/050913_titan_life.html] or the Wikipedia entry on "Titan (moon)". David Morrison
NAI Senior Scientist
June 13, 2007
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