We check in with the progress of search for extraterrestrial intelligence. A paper published this week in the journal Nature argues that for sending lots of data over long distances, it's hard to beat sending a physical artifact engraved with data. We'll talk about ways to communicate lots of information over long distances.
Christopher Rose, professor of electrical and computer engineering. Associate director, Wireless Networks Laboratory, Rutgers University
Dan Werthimer, chief scientist, SETI@home. SERENDIP (Search for Extraterrestrial Radio Emissions from Nearby Developed Intelligent Populations) project director, Space Sciences Laboratory at the University of California, Berkeley.