Astrophysicist Mario Livio works with science the Hubble Space Telescope makes possible. He is not a religious person. But he's fascinated with the enduring mystery of the very language of science, mathematics.
For the past few interviews, we have been diligently tweeting away while Krista converses with our guests. We hope that this is a unique way for you to experience some of the highlights — and get the conversation started — before you experience the full edited (or unedited!) show.