Civil rights icons Bill Moyers and Rep. John Lewis (D-GA) reunited to share experiences and revelations from the

Civil rights icons Bill Moyers and Rep. John Lewis (D-GA) reunited to share experiences and revelations from the historic March on Washington, which they both attended 50 years prior.

At just 23, Lewis, then leader of the Student Nonviolent Coordinating Committee, was the youngest and most defiant of the featured speakers at the momentous event.

Author and research scientist Lewis Dartnell joins us to discuss his book, "Being Human: How our Biology Shaped World History." This exploration delves into how our biology has influenced

Author and research scientist Lewis Dartnell joins us to discuss his book, "Being Human: How our Biology Shaped World History." This exploration delves into how our biology has influenced relationships, societies, economies, and wars, and continues to define human progress. Get the book here. For more information on Lewis, please visit lewisdartnell.com.

Professor Dartnell is a London-based astrobiologist, author, and science communicator. He researches the search for microbial life on Mars and is recognized for his science writing, outreach work, and numerous media appearances.

Moderated by Rob Leworthy.