Daring to attend his first Conference on World Affairs, Seth Shostak comes to Boulder from the SETI Institute in California, where he is an astronomer engaged in the search for extraterrestrial intelligence. His interest in the sky dates from a chance encounter with a diagram of the solar system he uncovered in a family atlas at the impressionable age of 8. Shostak has spent the majority of his relatively lengthy life studying galaxies using radio telescopes. At some point during these scholarly activities, Seth realized that the hardware he was using to pumb the depths of the universe could also be used to find out if we have intelligent cosmic company. He now occupies his days with the efforts to eavesdrop on alien radio broadcasts. The author of hundreds of popular articles on astronomy, film, technology, and sundry other topics, Shostak’s recent book, Sharing the Universe, describes his current endeavor to prove that we’re not alone in the universe. He also has an eclectic background that encompasses such diverse activities as film, railroading, and computer animation. A lecturer at the California Academy of Sciences and a frequent sound-bite artist on television and radio, Shostak can occassionally be heard to lament the fact that, according to his own estimate, he was born two generations too soon to benefit from the cure for death.