Guests: Timothy Dolch, Gad Saad, & Mickey Mattox

Host Scot Bertram talks with Timothy Dolch, associate professor of physics at Hillsdale College, about his work with the NANOGrav Physics Frontiers Center showing evidence for gravitational waves. Gad Saad, professor and evolutionary behavioral scientist, discusses the keys to happiness and his new book The Saad Truth about Happiness. And Mickey Mattox, Flack Family Foundation Chair and professor of theology at Hillsdale College, tells us how to think about Martin Luther as theologian.