Why do we think aliens are out there? Is Earth really being visited? Will aliens really be short, gray, and hairless? What happens if we pick up a signal from another world?  These are just a few of the questions this week's guest tackles regularly, in his role as the senior astronomer for the SETI (Search for Extra-Terrestrial Intelligence) Institute. Dr. Seth Shostak talks with Swoopy about the ongoing search for life in the universe, as chronicled in his new book Confessions of an Alien Hunter: A Scientist's Search for Extraterrestrial Intelligence.

Guests