Avi Loeb is an astrophysicist and professor of astronomy.  He is the head of the Galileo Project, founding director of Harvard University’s — Black Hole Initiative, and the former chair of the astronomy department at Harvard University from 2011–2020. He is the bestselling author of the books "Interstellar," and "Extraterrestrial."  *This episode was recorded on location from Avi's dining room table.