Memory defines us. Memory is the basis of our sense of self. But how do the structures of the mind store memories? What changes do memories imprint on the brain? …

This program, Ending the Epidemic: Science Advances on AIDS, brings together leading researchers on the forefront of scientific efforts to understand and attack the virus that causes AIDS. Moderator Richard …

Nowadays, the tools for tracing your family tree have advanced far beyond looking back at names in the family Bible or compiling a scrapbook of paper records. Using your genetic information to find long-lost relatives is easier and cheaper than ever before—and scientists are looking to push the technology even further by analyzing our skin and facial features.

Prominent clashes — both historical and contemporary — have led to the widely held conclusion that science and religion are fundamentally incompatible. Yet, many scientists practice a traditional faith, having found a way to accommodate both scientific inquiry and religious teaching in their belief system.

Nobel Laureate and physicist Adam Riess and Brian Greene discuss the paradigm-shattering discovery that the expansion of the universe is accelerating, the role of dark energy, and more. This program …

Alan Alda has issued this year’s challenge to the world’s top scientists: What is sound? In an action-packed hour of interactive demonstrations, Alan and a team of communication experts invite the audience to explore what we hear, how we hear, and what that means for different species.