Alien life has been a mainstay and fascination of science fiction, but who–or what–might actually be out there: biological life, artificial intelligence, or some combination of both? It took only …

Brian Greene and Michael Levi discuss revolutionary observations that may upend our cosmological understanding. This program is part of the Big Ideas series, supported by the John Templeton Foundation.

Ecologist and explorer Mark Moffett has trekked across the globe to document new animal species and behaviors. Just like the creatures he studies, Mark can be found crawling in the …

We spend a third of our lives asleep. Every organism on Earth—from rats to dolphins to fruit flies to microorganisms—relies on sleep for its survival, yet science is still wrestling with a fundamental question: Why does sleep exist?

World renowned neurophysiologist and computational neuroscientist Christof Koch joins Brian Greene to discuss how decades of experimental and theoretical investigation have shaped his understanding of consciousness and the brain — …

Richard Davidson, Karen Armstrong, and Kate Stockly, join Brian Greene to discuss the psychological and physiological impacts of sacred experiences, and how technology may make such experiences more readily available. …