Seth is the Senior Astronomer and Director of the Center for SETI Research at the SETI Institute, in Mountain View, California. He has an undergraduate degree in physics from Princeton University, and a doctorate in astronomy from the California Institute of Technology. For much of his career, Seth conducted radio astronomy research on galaxies, and has published approximately sixty papers in professional journals. <br> <br> He has written many hundred popular magazine and Web articles on various topics in astronomy, technology, film and television. He lectures on astronomy and other subjects at Stanford and other venues in the Bay Area, and for six years, was a Distinquished Speaker for the American Institute of Aeronautics and Astronautics. Every week he hosts the SETI Institute’s science radio show, “Big Picture Science.” <br> <br> Seth has edited and contributed to a half dozen books. His most recent tome is <em>Confessions of an Alien Hunter: A Scientist’s Search for Extraterrestrial Intelligence</em> (National Geographic).