Todays guest on the Tuff House is a dear friend to Tuffy, Joe and Tom; Dr Daniel Walker. With a PhD in the field of Astrophysics he is our resident master of space and time. We talk about how he went from learning to be an adult with Tuffy to how he studies the stars at a special facility in Chile. Danny attempts to dumb down some fascinating principles of the universe into bite size chunks that even Tuffy could wrap his lips around.