System Proposed for Assessing Odds for Life on Other Worlds


Within the next few years, the number of planets discovered in orbits around distant stars will likely reach several thousand or more. But even as our list of these newly discovered “exoplanets” grows ever-longer, the search for life beyond our solar system will likely focus much more narrowly on the relatively few of these new worlds which exhibit the most Earth-like of conditions.
For much of the scientific community, thesearch for alien life has long been dominated by the notion that our own planet serves as the best model of conditions best suited to the emergence of life on other worlds. And while there’s an undeniable logic to seeking life in the same sort of conditions in which you already know it to be successful, there are scientists like Dirk Schulze-Makuch, an astrobiologist with the Washington State University School of Earth and Environmental Sciences and Abel Mendez, a modeling expert from the University of Puerto Rico at Aricebo, who also see such a model as the product of a potentially limiting form of earthling-biased thinking.
To Schulze-Makuch and his nine fellow authors – an international working group representing, NASA, SETI,the German Aerospace Center, and four universities– the search for life on other worlds is really driven by two questions.

Full Story: http://news.wsu.edu/pages/publications.asp?Action=Detail&PublicationID=28889&TypeID=1

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