How can the lessons of the past help us navigate the turbulence of the present and future? Social philosopher Roman Krznaric explores why history isn’t just a record of what’s gone wrong — it’s also full of solutions, resilience and...

Techno-optimist Vinod Khosla believes in the world-changing power of "foolish ideas." He offers 12 bold predictions for the future of technology — from preventative medicine to car-free cities to planes that get us from New York to...

In 2015, two men drove a Volkswagen across the US on just over 100 gallons of fuel. Their 81-mile-per-gallon performance doubled the car's estimated fuel rating, and set the record for the lowest fuel consumption ride of a diesel car....

Based on her work for a CIA task force aimed at predicting civil wars, political scientist Barbara F. Walter examines the rise in extremism and threats to democracies around the globe -- and paints an unsettling picture of the increasing...

Hank sits down with local meteorologist Mark Heyka for a 100% chance of fun as they discuss tornados and weather phenomenons. Then Jessi from Animal Wonders comes on to show off a pair of adorable sugar gliders.

Bestselling author Michael Lewis says the idea that civil servants are "lazy or stupid or dead weight on the society is...the most sinister idea alive in this country right now." In his new book, "The Fifth Risk," Lewis examines how the...

Strong faith is a core part of Alaa Murabit's identity -- but when she moved from Canada to Libya as a young woman, she was surprised how the tenets of Islam were used to severely limit women's rights, independence and ability to lead....

As the world faces recession, climate change, inequity and more, Tim Jackson delivers a piercing challenge to established economic principles, explaining how we might stop feeding the crises and start investing in our future.

Why do we go to space? In the beginning of our space program, the answer had a lot to do with war and paranoia. But with the dawn of the space shuttle, that all changed. Where do we go from here?

Hank summarizes the exciting news about Planetary Resources, a company with plans to mine near-earth asteroids for precious metals and water, and what these plans might mean for humanity's future in space.

If you've ever played with a ouija board, you might have gotten the spooky sensation of an other worldly presence. But really, that's just your brain playing tricks on you.

Hank sits down with local meteorologist Mark Heyka for a 100% chance of fun as they discuss tornados and weather phenomenons. Then Jessi from Animal Wonders comes on to show off a pair of adorable sugar gliders.

Jay Walker, curator of the Library of Human Imagination, conducts a surprising show-and-tell session highlighting a few of the intriguing artifacts that backdropped the 2008 TED stage.

We’re all susceptible to infectious disease of some kind or other, but not everyone is equally likely to be the victim of an outbreak. The fact is, inequalities both between and within communities mean that some people are at higher risk...

Sebastian Thrun helped build Google's amazing driverless car, powered by a very personal quest to save lives and reduce traffic accidents. Jawdropping video shows the DARPA Challenge-winning car motoring through busy city traffic with no...

Why build a virtual world? Philip Rosedale talks about the virtual society he founded, Second Life, and its underpinnings in human creativity. It's a place so different that anything could happen.

Nathaniel Kahn shares clips from his documentary "My Architect," about his quest to understand his father, the legendary architect Louis Kahn. It's a film with meaning to anyone who seeks to understand the relationship between art and love.

As oil and gas companies continue to make record profits off of the same forces driving climate chaos, war and soaring energy bills, it's become clear that boom times for the fossil fuel industry are bad times for the rest of us, says...

Oceanographer John Delaney is leading the team that is building an underwater network of high-def cameras and sensors that will turn our ocean into a global interactive lab -- sparking an explosion of rich data about the world below.

Dive into the science of ocean currents (including the Global Conveyor Belt current), and find out how climate change affects them. -- In 1992, a cargo ship carrying bath toys got caught in a storm. Shipping containers washed...

Our planet was once populated by megafauna, big top-of-the-food-chain predators that played their part in balancing our ecosystems. When those megafauna disappear, the result is a "trophic cascade," where every part of the ecosystem...

You've probably seen the pyramidal diagram of Maslow’s hierarchy of needs. It's straightforward enough but, it might be a bit too subjective to really measure human needs.

Hank gets to the more violent part of community ecology by describing predation and the many ways prey organisms have developed to avoid it.

"1984" by George Orwell explores the dangers of totalitarianism through the story of Winston Smith in a society controlled by Big Brother. Drawing on Orwell's own experiences in the Spanish Civil War, the novel delves into themes of...