Conversations with the scientists shaping how we understand reality. I'm Brian Keating, experimental cosmologist at UC San Diego. My team builds telescopes at the South Pole & in the Atacama Desert to measure the cosmic microwave background, the oldest light in the universe. On Into the Impossible, I interview Nobel laureates, working researchers, and the heretics they argue with. Past guests include Terry Tao, Roger Penrose, Kip Thorne, Frank Wilczek, Sam Harris, David Deutsch, Avi Loeb