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)

If nectar is nature's gold, then the angel's trumpet flower is Fort Knox. Around a foot long in length, it's too deep for most birds and its walls are too thick for most to break down.

This Remarkably Long Flower Stores Its Nectar Deep Inside (2:58)

While stars like Jimmy Stewart and Clark Gable enlisted and served during WWII, directors like John Ford would bring military footage of the Pacific conflict straight to American viewers.

How Hollywood Encouraged Recruitment for WWII (2:38)

The technologist talks with the inventor about humankind’s amazing capacity to solve problems

The Long Conversation 2018: Obi Felten Interviews Danny Hillis (10:57)

The founder of Uncharted Power talks with the comedian about pockets of political change in America’s South

The Long Conversation 2018: Jessica Matthews Interviews Roy Wood, Jr. (11:21)

The opera singer and the director of the Los Angeles County Museum of Art talk about fostering inclusivity in the arts

The Long Conversation 2018: Larisa Martinez Interviews Michael Govan (10:59)

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 San Gabriel Mountains lure lots of Angelenos looking for some quiet seclusion. One of the more famous was Leonard Cohen who spent five years there, searching for peace of mind.

This Famous Singer Ditched L.A. for a Five-Year Retreat (1:33)

The San Gabriel Mountains lure lots of Angelenos looking for some quiet seclusion. One of the more famous was Leonard Cohen who spent five years there, searching for peace of mind.

Why Los Angeles Is One of the Best Places to Film (1:20)

The 12-year-old activist talks with the award-winning actress about how an increasingly diverse body of storytellers sharing their experiences is breaking down artificial barriers

The Long Conversation 2018: Naomi Wadler Interviews Alfre Woodard (12:02)

The founder of Uncharted Power talks with the comedian about pockets of political change in America’s South

The Long Conversation 2018: Jessica Matthews Interviews Roy Wood, Jr. (11:21)

The opera singer and the director of the Los Angeles County Museum of Art talk about fostering inclusivity in the arts

The Long Conversation 2018: Larisa Martinez Interviews Michael Govan (10:59)

While stars like Jimmy Stewart and Clark Gable enlisted and served during WWII, directors like John Ford would bring military footage of the Pacific conflict straight to American viewers.

How Hollywood Encouraged Recruitment for WWII (2:38)

When you look at the sheer scale of her athletic achievements, it's a wonder she's not better known today: boxing star, three-time Olympic medalist, and one of the best women's golf players of all time.

The Most Famous Female Athlete You've Never Heard Of (1:37)

The Smithsonian curator of political history talks with the co-founder of One Common Unity about creativity, education and solving the world’s biggest problems

The Long Conversation 2018: Jon Grinspan Interviews Hawah Kasat (11:57)

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)

Gasp! The answer will amaze you.

Ask Smithsonian: How Long Can a Person Hold Their Breath? (1:32)

The science of earwax in under a minute

Ask Smithsonian: What's the Point of Earwax? (1:05)

Mans best friend is also one of his oldest.

Ask Smithsonian: When Did People Start Keeping Pets? (1:05)

The principal investigator for NASA’s Juno spacecraft talks with the founder of Uncharted Power about the pursuit of technology that could allow everyone affordable access to clean electricity

The Long Conversation 2018: Scott Bolton Interviews Jessica Matthews (11:03)

The 12-year-old activist talks with the award-winning actress about how an increasingly diverse body of storytellers sharing their experiences is breaking down artificial barriers

The Long Conversation 2018: Naomi Wadler Interviews Alfre Woodard (12:02)

The technologist talks with the inventor about humankind’s amazing capacity to solve problems

The Long Conversation 2018: Obi Felten Interviews Danny Hillis (10:57)

Nicole Austin is a Master Blender, Engineer and Distiller in the growing US craft spirits industry, the newly elected President of the New York State Distillers Guild, and is a seasoned imbiber of spirits.

Aqua Vitae or Hooch? The Secrets of Great Whiskey (19:39)

Molly Wright Steenson is an Assistant Professor in the School of Journalism & MassCommunication at UW-Madison. Pneumatic tubes have made her Internet famous.

Pneumatic Tube Systems, Particularly in Paris: It Really Is a System of Tubes (20:47)

Derek Demeter has been Planetarium Director at Seminole State College of Florida since 2007. He writes and produces new shows that explore the astronomy and history of numerous cultures from around the world. He serves as Vice President of the Central Florida Astronomical Society, and sets up telescopes at local shopping centers to give the public a truly out-of-this world experience.

The ET Files: Move Over M.I.B! (23:14)