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             Jill 
                Tarter Director, Center for SETI Research
 
          Carl Sagan was thinking of Jill Tarter when he invented the main 
                character in his novel
          
           Contact
          
          . Her search for radio signals 
                from distant planets began at the University of California at 
                Berkeley, and has led her to become director of the SETI Institute's 
                Center for SETI Research. She has written award-winning teachers' 
                guides about life in the universe, and has inspired many young 
                people to consider questions of life beyond Earth.
          
          
           Video interview with Tarter by the SETI 
                Institute:
           http://www.seti.org/seti_nai/voices.php
 
 Profile of Tarter in
           
            Astrobiology
           
           
            Magazine
           
           :
 http://www.astrobio.net/news/article436.html
 
 Article by Tarter describing the SETI project:
 http://www.space.com/searchforlife/seti_astrobiology_030619.html
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             Dan 
                Werthimer Director, UC Berkeley SETI Program
 
          Dan Werthimer has spent twenty-five years searching for radio 
                and laser signals from distant civilizations. He's created a worldwide 
                supercomputer, the
          
           SETI@home 
                project
          
          , connecting millions of people's hard drives across 
                the globe to aid in the search. Though he hasn't detected a single 
                signal, he's not deterred. Either other life exists out there 
                or we are alone. To Werthimer, either result is profound.
          
          
           A Planetary Society radio show featuring 
                Werthimer:
           http://www.planetary.org/audio/pr20030317.html
 
 An interview with Werthimer by the Exploratorium's Ron Hipschman:
 http://setiathome.ssl.berkeley.edu/about_seti/about_seti_1.html
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             Frank 
                Drake Senior Scientist, SETI Institute
 
          In the astrobiology universe, Frank Drake is a kingpin. In 1960, 
                he conducted the first radio search for extraterrestial intelligence. 
                For twenty years, he was director of the
          
           Aricebo 
                Observatory
          
          . Drake believes that life arose on Earth via common 
                processes that could happen on other planets. The likelihood of 
                intelligent life can be calculated using
          
           Drake's 
                equation
          
          .
          
          
           An interview with Drake on the Web site 
                for the movie
           
            Contact
           
           :
           http://contact-themovie.warnerbros.com/cmp/int-drake.html
 
 Drake's statement about intellegent life in the universe:
 http://astrobiology.arc.nasa.gov/workshops/1996/astrobiology/
 speakers/drake/drake_abstract.html
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             Douglas 
                Vakoch Director of Interstellar Message Composition, SETI Institute
 
          If some other civilization calls and says hello, how do we respond? 
                As the SETI Institute's Director of Interstellar Message Composition, 
                Douglas Vakoch is charged with answering that question. He consults 
                artists, scholars, and scientists on the most comprehensible way 
                to describe being human. How we answer that contact, he says, 
                will set the tone for interstellar dialogue for thousands of years.
          
          
           "How Would We Answer the Phone if 
                ET Called Us?":
           http://news.bbc.co.uk/1/hi/in_depth/sci_tech/2000/dot_life/2023019.stm
 
 "The View From a Distant Star: Challenges of Message-Making":
 http://www.aspsky.org/mercury/mercury/9902/vakoch2.html
 
 "Bioastronomy 2002: Extending the Boundaries of Astrobiology":
 http://www.space.com/searchforlife/bioastronomy_vakoch_020718.html
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             Jonathan 
                Trent Astrobiologist, NASA Ames Research Center
 
          What are the limits under which life can exist? What are the 
                hottest and coldest temperatures life can withstand? Trent's work 
                focuses on the adaptations of "extremophiles"—microbes 
                living in habitats inhospitable to us. What he learns can tell 
                us how life might adapt and flourish on planets with environments 
                similar to Earth's extremes. His discovery of a protein in the 
                bodies of creatures living in extremely hot environments has led 
                to new forms of microscopic technology (nanotechnology).
          
          PDF of Trent's paper about extremophiles in astrobiology:
          http://asgsb.indstate.edu/bulletins/v13n2/vol13n2p5-12.pdf
 
          
           Trent's Nanotechnology and Astrobiology 
                Research Group:
           http://bionanex.arc.nasa.gov/
 
          
           Trent's undersea photos of unusual marine 
                fauna:
           http://homepage.interaccess.com/~cycloid/archives/trent.gst/trentr1.htm
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             Nathalie 
                Cabrol Planetary Scientist, Principal Investigator, NASA Ames 
                Research Center and the SETI Institute
 
          If there is water on Mars, Nathalie Cabrol is determined to find 
                it. She has led several experiments employing robotic rovers on 
                the Red Planet, hoping to discover traces of past or present channels 
                and streams. As a planetary geologist, shes also researched 
                the geology of extremes on our planet in places like
          
           Chile's 
                Lake Licancabur
          
          , that may resemble conditions that existed 
                in ancient Martian lakes.
          
          Cabrol's profile on the SETI Institute site:
          http://www.seti.org/general/profiles/natalie-c.html
 
 Cabrol's profile and work at Lake Licancabur:
 http://www.extremeenvironment.com/2002/team/cabrol.htm
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             Lynn 
                Rothschild Evolutionary Biologist, NASA Ames Research Center
 
          Ultraviolet radiation may be bad for humans, but Lynn Rothschild 
                thinks it might have been good for the evolution of Earth's early 
                organisms. Her studies of Earth's microbes living with high UV 
                exposure tell us something about how similar organisms might survive 
                on Mars. Rothschild is also interested in how microbes may have 
                traveled between planets on meteorites. She has also organized 
                several Astrobiology Science conferences.
          
          
           "Protists, UV, and Evolution"
           (A talk by Rothschild):
 http://www.accessexcellence.org/BF/bf05/rothschild/index.html
 
 "Life in Extreme Environments"
 (An article by Rothschild for SpaceRef.com):
 http://www.spaceref.com/news/viewnews.html?id=463
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             David 
                Deamer Director, UC Berkeley SETI Program
 
          Knowing how life arose here can give us clues to how it might 
                arise elsewhere. David Deamer is trying to solve the puzzle of 
                how cells become cells, enclosed in membranes. In 1989, he mixed 
                compounds from a fallen meteorite with water and found that they 
                formed droplets resembling cell membranes. But that doesn't prove 
                there's life elsewhere. Quoting Carl Sagan, Deamer says, "Extraordinary 
                claims require extraordinary evidence."
          
          
           Deamers paper about the course of 
                evolution and the origin of cellular life:
           http://www.ucmp.berkeley.edu/education/events/deamer1.html
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             Chris 
                McKay Planetary Scientist, NASA Ames Research Center
 
          Mars may tell us something about how life arose on Earth. Chris 
                McKay would like to sample the Red Planet's soil and ice caps, 
                looking for fossils of ancient organisms. Hes also devised 
                plans for longer-term stays on Mars. For the moment, though, he 
                has to settle for seeking clues to life's origins in Earth's extreme 
                cold and dry environments.
          
          
           Chris McKays Three Key Questions:
           http://www.newmars.com/archives/000066.shtml
 
 "Looking for Life, Astrobiologists Dive Deep":
 http://www.astrobio.net/news/print.php?sid=113
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