How do you know you're real? Is existence all just a big dream? Has some mad scientist duped us into simply believing that we exist? James Zucker investigates all of these questions (and more) in this mind-boggling tribute to Rene...

The place that travel writer Pico Iyer would most like to go? Nowhere. In a counterintuitive and lyrical meditation, Iyer takes a look at the incredible insight that comes with taking time for stillness. In our world of constant movement...

Illustrious jugglers the Raspyni Brothers show off their uncanny balance, agility, coordination and willingness to sacrifice (others). Now, if you'll just stand completely still...

Hailed as the greatest pickpocket in the world, Apollo Robbins studies the quirks of human behavior as he steals your watch. In a hilarious demonstration, Robbins samples the buffet of the TEDGlobal 2013 audience, showing how the flaws...

Way more kids have fuzzy vision these days because we spend less time in outdoor light, which makes our eyeballs longer.

If most people got on a skateboard, they would roll forward slowly for a few feet, then fall down and break their wrists. But there are a proud few who can do some pretty amazing tricks on a board, and they use physics to pull them off....

Money, money, money ... in the music business, there seems to be little left for the songwriters that fuel it. ABBA co-founder Björn Ulvaeus calls for the industry to support its most valuable asset, breaking down how the streaming...

Scientists have discovered over 5,000 exoplanets in the last few decades, but where are the Exo-Earths?

You are more than you think you are, says former pro wrestler Mike Kinney -- you just have to find what makes you unique and use it to your advantage. For years Kinney "turned up" the parts of himself that made him special as he invented...

Learn about what might be one of the most important exoplanets we've discovered yet, and what you need to apply to become an astronaut!

Alberto Cairo's clinics in Afghanistan used to close down during active fighting. Now, they stay open. In this powerful talk, Cairo tells the moving story of why -- and how he found humanity and dignity in the midst of war.

Join Squeaks and his favorite band, The Whizpops, for a musical experience with Manta Rays!

Ever wonder what those little earthworms are up to? Learn why worms are wonderful with Jessi and Squeaks!

Every day, we meet people and process our interactions--making inferences and developing beliefs about the world around us. In this lesson, Trevor Maber introduces us to the idea of a 'ladder of inference' and a process for rethinking...

In 1948, Spanish ophthalmologist Jose Ignacio Barraquer Moner was fed up with glasses. He wanted a solution for blurry vision that fixed the eye itself, without relying on external aids. The surgery he eventually devised was called...

Squeaks and Jessi are spending the afternoon playing "Guess That Animal" and learning about some of their favorites!

The other day I got bored and noticed this weird thing happened when I held my finger up to my eye, so I had to science it and figure it out! Let me know if you try these light-bending experiments too, especially that last one that I...

Part 1 of 3 in my series about why our bodies are shaped the way they are.

385 million years ago, a group of fish would undertake one of the most important journeys in the history of life and become the first vertebrates to live on dry ground. But first, they had to acquire the ability to breathe air.

How Do Bikes Stay Up?

Vision impairment is common in humans, so why not the rest of the animal kingdom?

Bumblebees fly, lights turn on, and you can ride a bike without falling over. We all know these things to be true, but what you may not know is the real reason behind why they work. Join Olivia to bust seven myths about motion.

Here on Earth, we’re used to seeing both lunar and solar eclipses. But further out are eclipses that don’t behave at all the way we expected them to.

A more equal world starts with you. Citing a formative moment from her own life, equity advocate Nita Mosby Tyler highlights why showing up and fighting for others who face injustices beyond your own lived experience leads to a fairer,...