Space theorist posits unusual life on Mars
Monterey -- The planet Mars may well have been the scene of the solar system's "second genesis," where forms of life vastly different from Earth's emerged deep beneath the Martian surface billions of years ago, a leading space scientist proposed Wednesday.
http://sfgate.com/cgi-bin/article.cgi?f=/c/a/2003/09/04/MN303153.DTL