>> this doesn't work for any traces of life but it does assess if mars has evolved to support life in the past. my feelings about life out there that there is enough planets that we know about in the galaxy there are 40 billion the chances are pretty good we will find life. jon: but this particular probe is designed to just sit there although it is described the kansas of mars the very flat plains to sit there and listen and monitor deep underground? . >> yes. this represents a different kind of science we have had lynn landers that roamed around the surface going to different locations or orbiting spacecraft to analyze the atmosphere even those that have scratch the surface to take up samples of the soil to test them but this is the first time a spacecraft will burrow down into the upper crust of the planet to