It is the ultimate question, asking whether there is life out there in the Cosmos, and to know that we're not the only kids on the block. Scientific efforts are underway to detect signs of extraterrestrial life, including intelligent life capable of sending and receiving radio signals. The mission of the SETI Institute (Search for Extraterrestrial Intelligence) is to explore and understand the nature of life in the Universe. SETI's Senior Astronomer, Seth Shostak attended CU's 63rd Annual Conference on World Affairs and he was kind enough to join us in our studio, his second appearance on CU Science Update. Seth has written hundreds of popular articles on astronomy and he's appeared in numerous radio and TV shows. He is also the author of Confessions of an Alien Hunter, which was released in 2009. Along with science journalist Molly Bentley, Seth is the co-host of the radio show, Are We Alone? which can be heard on NPR radio stations and as a podcast. He discusses with CU Science Update's Rose Heaphy the role of SETI and the possibility of finding life, not just among the stars, but right here in our own solar system. Hosted by Amy Moore-Shipley.