Seth is an astronomer with a BA in physics from Princeton and a PhD in astronomy from Caltech, and is involved with the Institute's SETI research. But he's also responsible for much of the outreach activities of the Institute. He is science editor for "The Explorer", gives more than 50 talks annually for both academic and general audiences, and writes magazine articles (and books) about SETI. He also teaches informal education classes on astronomy and other topics in the Bay Area, and is the inventor of the electrical banana, a circumstance he claims has had little positive effect on his life. He is the host for the SETI Institute's weekly radio program Are We Alone? Before coming to SETI, Seth did research work on galaxies using radio telescopes at observatories and universities in America and Europe. His avocations include photography, filmmaking, and electronics. Seth has produced a series of lectures on tape and video on the subject of SETI. For more information visit the Teaching Company website.