Search for alien life challenges current concepts
Search for alien life challenges current concepts
http://www.spaceref.com/news/viewpr.html?pid=19057
"For scientists eying distant planets and solar systems for signs of alien
activity, University of Colorado at Boulder Professor Carol Cleland suggests
the first order of business is to keep an open mind.
It may be a mistake to try to define life, given such definitions are
based on a single example -- life on Earth, said Cleland, a philosophy professor
and fellow at the NASA-funded CU-Boulder Center for Astrobiology.
The best strategy is probably to develop a "general theory of living systems,"
she said."