Astrophysicist Neil DeGrasse Tyson, director of the Hayden Planetarium at the American Museum of Natural History (AMNH) in New York City, discusses everything from pond scum to space aliens in this off-the-wall and very engaging episode.  It’s vintage Tyson.  We also touch on his latest book written with George Mason University physicist James Trefil --- “Cosmic Queries:  StarTalk’s Guide To Who We Are, How We Got Here, And Where We’re Going.”