Episode 66 features astrophysicist Dr. Dan Hooper. Dan is a Senior Scientist and the Head of the Theoretical Astrophysics Group at the Fermi National Accelerator Laboratory. He is also an Associate Professor in the Department of Astronomy and Astrophysics at the University of Chicago.  We discuss the biggest open questions in astrophysics today and how they might be solved. Dark energy, dark matter, the beginning of our Universe, the Higgs Boson, and so much more are covered in this episode!