http://startalkradio.net/

StarTalk, from Curved Light Productions, is the first and only popular commercial radio program devoted to all things space and is hosted by renowned astrophysicist Neil deGrasse Tyson. As Director of the Hayden Planetarium at the American Museum of Natural History, Tyson makes regular appearances as the “nation’s expert on space” on major news programs and popular shows (Daily Show, Colbert Report).