Confidence doesn’t come before action — it comes from taking action, says business leader Kat Cole, who worked her way up from waitress to CEO of a global health company. She presents a simple yet powerful practice called the "hot shot...

As one of the agency’s best employees, you’ve been selected as a finalist to take on a new top-secret mission. You’ve already shown your aptitude for surveillance and disguise, but the agency’s looking to test one last critical skill:...

When wildfires rage in California, incarcerated people are often on the front lines fighting the flames. TED Fellow Royal Ramey was one of them. He shares the story of how doing public service in prison inspired him to cofound the...

Farm labor is hot, backbreaking and dangerous work. To protect workers from extreme heat and workplace exploitation, farmworker Gerardo Reyes Chávez has teamed up with farm manager Jon Esformes for a unique partnership. Learn how their...

Organ transplants save lives, but they come with challenges: every minute a healthy donated organ is on ice increases risk. And even if things go perfectly, rejection of the organ is still possible. Cardiothoracic surgeon Abbas Ardehali...

In 1997, NASA bought a Boeing 747SP for what might be both a super cool and super absurd purpose. Turn it into SOFIA, a flying telescope.

Tomorrow is the annual Brain Clash — a decathlon of mental challenges, trivia competitions, and puzzles. Amir needs a smart and capable teammate and must choose between three people; all of different ages and talents. So, who should Amir...

We usually think of 'hacking' as a bad thing, but scientists are working on ways to hack the brain that will greatly benefit people with prosthetics, and maybe someday people with paralysis.

Nearly 40 percent of humanity lives near a coast -- and no two coasts are the same. How can these communities build resilience to the increasing risks of climate change? Climate advisor Dave Sivaprasad outlines how to tackle this complex...

What if we could solve the climate and housing crises at the same time? Financial institutions have pledged trillions to transform the economy and accelerate climate action -- but right now, that money is not flowing at the speed it...

Despite common belief, retirement takes more than financial planning. And while you may be beyond ready to go on permanent vacation, you also have to psychologically prepare for when the novelty wears off. Riley Moynes explains the four...

What will become of humanity after spend a few hundred years on Mars? What will happen after a few thousand? Evolution has, and still is, shaping humanity in rather drastic ways. How long will humans stop being human and become Martian?

The pandemic forced the world to work together like never before and, with unprecedented speed, bore a new age of health and medical innovation. Physician-scientist Daniel Kraft explains how breakthroughs and advancements like...

economic growth is the defining challenge of our time; without it, political and social instability rises, human progress stagnates and societies grow dimmer. But, says economist Dambisa Moyo, dogmatic capitalism isn't creating the...

We think of fish as completely aquatic animals. But there are actually hundreds of fish species that are amphibious, meaning that they possess adaptations that enable them to survive on land. Once on land, however, they face suffocation,...

This week we’re exploring aerospace engineering and its two main fields: aeronautical engineering and astronautical engineering. We’ll explore life & buoyancy, propulsion systems, and the challenges of managing the human body in space.

In this episode, we looked at food engineering. We explored how food’s capacity to spoil makes it a unique challenge from an engineering viewpoint. We saw how many branches of engineering come into play to process ingredients, ensure...

Climate change is the epic challenge of our lives, and community leaders like Rahwa Ghirmatzion and Zelalem Adefris are already working on sustainable, resilient solutions. Through their organizations in Buffalo and Miami, they're...

When it comes to big problems like climate change, we tend to focus on big solutions -- but many of the best ideas come from people on the ground, facing day-to-day conservation battles. Sharing her effort to protect the Leseur ecosystem...

Every 24 hours, wind generates enough kinetic energy to produce roughly 35 times more electricity than humanity uses each day. And unlike coal or oil, this resource is totally renewed each day. So how can we harness this incredible...

How can we stop the spread of misleading, sometimes dangerous content while maintaining an internet with freedom of expression at its core? Misinformation expert Claire Wardle explores the new challenges of our polluted online...

SciShow script writer and D&D enthusiast Alexa Billow goes head to head against Hank in his 50th Quiz Show appearance! Who will win in the battle of Wombat Butts and Quantum Mechanics?

An effective COVID-19 vaccine is just the first step in ending the pandemic, says global health strategist Johanna Benesty. In this illuminating talk, she explores the various barriers to "equitable access" -- making sure COVID-19...

From cinnamon to Tide pods, “challenge videos” are dangerous. So why do people do them?