The T-Rex's Journey to D.C

Mount Chimborazo of Ecuador may be a dormant volcano, but its neighbors are anything but. In fact, the nearby Reventador volcano has erupted more than 25 times in the past 500 years.

This Dormant Volcano in Ecuador Is Very Much the Exception (2:11)

The co-founder of the Carlyle Group talks with the principal investigator for NASA’s Juno spacecraft about Jupiter and what humans could learn from exploring it

The Long Conversation 2018: David Rubenstein Interviews Scott Bolton (10:20)

The co-founder of the Good Food Institute talks with the breast cancer oncology specialist about personalization in medicine

The Long Conversation 2018: Bruce Friedrich Interviews Laura Esserman (12:30)

The actress talks with the co-founder of the Good Food Institute about solving the problems of industrial animal agriculture by growing cells and developing plant-based meat

The Long Conversation 2018: Alfre Woodard Interviews Bruce Friedrich (11:23)

The music manager gets the Smithsonian paleontologist talking about how taking interest in our natural history can help us know where we are going as a species and a planet

The Long Conversation 2018: Troy Carter Interviews Nick Pyenson (11:36)

The chef speaks with the molecular geneticist who, with her husband, developed a new treatment for blindness using gene therapy

The Long Conversation 2018: Spike Gjerde Interviews Jean Bennett (11:21)

The Smithsonian astrophysicist tells the comedian she’s hopeful about finding more Earth-size planets

The Long Conversation 2018: Roy Wood, Jr. Interviews Mercedes Lopez-Morales (11:44)

A female lioness has adapted her hunting skills in the face of an oppressive drought. She spots a nearby kudu, and decides to launch a solitary attack - in broad daylight.

Lioness Uses New Tactics to Take Down a Kudu (3:17)

A group of orphaned lion cubs are facing an uncertain future. If they're to survive into adulthood, they will have to convince their reluctant aunt to share her kill with them.

Hostile Lioness Withholds Food From Hungry Orphaned Cubs (3:09)