What can a lifetime of scientific discovery teach us about the universe—and ourselves? In this wide-ranging conversation, Michael Shermer sits down with Lord Martin Rees, renowned cosmologist, astrophysicist, and former Astronomer Royal, to reflect on the forces that shape scientific success, from personal luck to cultural context. Rees shares insights on the mysteries of cosmology, the search for extraterrestrial life, and the paradoxes that still puzzle humanity.

Rees also shares intimate reflections on his friend and Cambridge colleague Stephen Hawking, thoughts on Fermi’s Paradox, and why some truths may forever lie beyond human comprehension.

The discussion also turns toward urgent global issues: the promise and peril of AI, ethical dilemmas in a rapidly advancing world, and how religion and terrorism could shape our future.