"On a scale of 1 to 10, 1 being impossible, 10 being definate, what is the chances of live being on a comet or asteroid."
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Islands of Life Across Space and Time
October 7, 2009 / Posted by: Aaron Gronstal
Researchers supported by the NASA Astrobiology Institute have provided the first quantitative evaluation of planetary habitability. The study shows how the habitability of Earth has changed in the past, and will aid astrobiologists in evaluating the habitability of other planets in our solar system and beyond.Source: [astrobio.net]
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