Paddy Ashdown believes we are living in a moment in history where power is changing in ways it never has before. In a spellbinding talk he outlines the three major global shifts that he sees coming.

Today's data storage solutions have an expiration date. What's on the horizon to replace them?

Our exploration of ethical theories continues with another theistic answer to the grounding problem: natural law theory. Thomas Aquinas’s version of this theory says that we all seek out what’s known as the basic goods and argued that...

In which John Green, Hank Green, and Emily Graslie teach you about the Anthropocene, an unofficial geological era that covers the last century or so, in which humanity has made massive progress. We've discovered the Higgs-Boson particle,...

The racial wealth gap in the United States is shocking: white families have a median wealth nearly 10 times greater than that of Black families. How did we get here, and how can we stop the gap from growing? Wealth equity strategist...

The average farmer in America makes less than 15 cents of every dollar on a product that you purchase at a store. They feed our communities, but farmers often cannot afford the very foods they grow. In this actionable talk, social...

Pollster Dalia Mogahed shares surprising data on Egyptian people's attitudes and hopes before the Arab Spring -- with a special focus on the role of women in sparking change.

each year, one in seven large corporations commits fraud. Why? To find out, Alexander Wagner takes us inside the economics, ethics and psychology of doing the right thing. Join him for an introspective journey down the slippery slopes of...

Athlete, actor and activist Aimee Mullins talks about her prosthetic legs -- she's got a dozen amazing pairs -- and the superpowers they grant her: speed, beauty, an extra 6 inches of height ... Quite simply, she redefines what the body...

What's a proven way to lower your energy costs? Would you believe: learning what your neighbor pays. Alex Laskey shows how a quirk of human behavior can make us all better, wiser energy users, with lower bills to prove it.

Sometimes trying your best isn't enough; when the situation demands it, you need to be perfect. For Jon Bowers, who runs a training facility for professional delivery drivers, the stakes are high -- 100 people in the uS die every day in...

A handful of people working at a handful of tech companies steer the thoughts of billions of people every day, says design thinker Tristan Harris. From Facebook notifications to Snapstreaks to YouTube autoplays, they're all competing for...

Massive stars die in fantastic explosions called supernovas. Most of them fit neatly into a few categories, but then there are the peculiars, a special group of supernovas that don’t quite fit in with the rest.

Feathers might have originated tens of millions of years before we'd thought, and a 3D rendering of ankylosaur nasal passages lends new insight into how they stayed cool.

Here's why you shouldn't judge a butterfly species by its wing coloration.

It's okay to be small?

There are incredible creatures living in the ocean that have the power to reshape the planet’s atmosphere - and you’ve probably never even seen them before. These microscopic critters are called phytoplankton, and almost all life, both...

After many years of quietly changing the world, women are finally receiving recognition for contributions in STEM. Let’s celebrate these 5 groundbreaking women, and their contributions to the field of engineering

Besides the blue of the oceans, the dominant color of our planet, as we know it, is green. But imagine a time when the Earth looked a little .... purple.

Crocodiles, horseshoe crabs and tuatara are animals that have persisted for millions of years, said to have gone unchanged since the days of the dinosaurs. But even the most ancient-looking organisms show us that evolution is always at...

Some of the biggest evolution questions finally answered.

With his team at SENSEable City Lab, MIT's Carlo Ratti makes cool things by sensing the data we create. He pulls from passive data sets -- like the calls we make, the garbage we throw away -- to create surprising visualizations of city...

"What would you attempt to do if you knew you could not fail?" asks Regina Dugan, then director of DARPA, the Defense Advanced Research Projects Agency. In this breathtaking talk she describes some of the extraordinary projects -- a...

In a powerful talk, educator Eldra Jackson III shares how he unlearned dangerous lessons about masculinity through Inside Circle, an organization that leads group therapy for incarcerated men. Now he's helping others heal by creating a...