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article_snippet.sent: We know where to look, We know how to look, and in most cases We have the technology.'
article_snippet.sent: We are not talking about little green men,' Stofan said. '
article_snippet.sent: We are talking about little microbes.'
article_snippet.sent: We think that long period of time is necessary for life to get more complex,' Stofan said.
article_snippet.sent: I think we're one generation away in we solar system, whether one generation's on an icy moon or on Mars, and one generation [away] on a planet around a nearby star.
article_snippet.sent: I'm a field geologist; I go out and break open rocks and look for fossils,' Stofan said. '
article_snippet.sent: Those are hard to find. '