Hank clarifies, corrects, and generally straightens out the origins of the terrific heat inside the Earth. It's not only from the collisions and pressure that date back to Earth's formation, it also involves the transport of heavier...

When astronomers study the universe, they’re often using telescopes that cost millions or even billions of dollars to build. Luckily for the rest of us, there are still plenty of incredible things to see in the sky with the more...

As you surf the Web, information is being collected about you. Web tracking is not 100% evil -- personal data can make your browsing more efficient; cookies can help your favorite websites stay in business. But, says Gary Kovacs, it's...

Today, there are thousands of cults around the world. Broadly speaking, a cult is a group or movement with a shared commitment to a usually extreme ideology that's typically embodied in a charismatic leader. But what exactly...

Dixon Chibanda is one of 12 psychiatrists in Zimbabwe -- for a population of more than 16 million. Realizing that his country would never be able to scale traditional methods of treating those with mental health issues, Chibanda helped...

Ever wonder if there's something about your scent that might be sending signals to the people around you? Well as it turns out, it's possible- but it winds up being a lot more complicated than you might think.

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Species that no longer exist vastly outnumber those that currently populate the planet, but occasionally we rediscover a species we thought was extinct!

Hank tells us about near-earth objects & primordial black holes; new developments in evolutionary genetics; a giant squid & a giant radio telescope; & answers viewer questions about disposing of nuclear waste in space.

We've heard a lot of rhetoric lately suggesting that countries like the uS are losing valuable manufacturing jobs to lower-cost markets like China, Mexico and Vietnam -- and that protectionism is the best way forward. But those jobs...

So, if economics is about choices and how we use our resources, econ probably has a lot to say about the environment, right? Right! In simple terms, pollution is just a market failure. The market is producing more pollution than society...

You can find groups of people from all over the world who communicate full conversation by whistling. And neuroscientists found how our brain works with whistled language is mind-blowing.

Explores classification in biology as well as taxonomy hierarchy: domain, kingdom, phylum, class, order, family, genus, and species with The Amoeba Sisters! This video also discusses the importance of scientific names and why...

General Motors veep Larry Burns previews cool next-gen car design: sleek, customizable (and computer-enhanced) vehicles that run clean on hydrogen -- and pump energy back into the electrical grid when they're idle.

TED Fellow Sophal Ear shares the compelling story of his family's escape from Cambodia under the rule of the Khmer Rouge. He recounts his mother's cunning and determination to save her children.

What would you do if your job was to save the planet? When Christiana Figueres was tapped by the uN to lead the Paris climate conference (COP 21) in December 2015, she reacted the way many people would: she thought it would be impossible...

The rise of lootboxes in video games has led to numerous investigations seeking to establish just how close to gambling they are. While the science behind lootboxes is only just beginning to come in, we do know a lot about how other...

NASA is sending a robot to Saturn’s giant moon Titan and instead of landing, orbiting, or driving when it gets there, this mission will fly.

There’s a small asteroid that appears to orbit Earth in a horseshoe shape. Sometimes referred to as Earth’s second moon, but it's orbit is much weirder than that.

Losing half of the world sounds like a weird, abstract dream state. But for those that develop hemispatial neglect, that’s exactly what happens, without them even realizing it.

Big or small, most creatures end up on something else's dinner menu. But the velvet ant combines a ton of defenses into one very unappetizing package. 

Reality isn't something you perceive; it's something you create in your mind. Isaac Lidsky learned this profound lesson firsthand, when unexpected life circumstances yielded valuable insights. In this introspective, personal talk, he...

The Internet connects billions of people and machines; it's the backbone of modern life. But tech pioneer Danny Hillis thinks the Internet just wasn't designed to grow this big -- and he fears that one big cyber-attack or glitch could...

Humanity now has incredible power to shape nature and the Earth: the power to destroy and the power to repair, says sustainability champion and UNDP Administrator Achim Steiner. In this action-oriented talk, Steiner shows how this power...

Every great and difficult thing has required a strong sense of optimism, says editor and author Kevin Kelly, who believes that we have a moral obligation to be optimistic. Tracing humanity's progress throughout history, he's observed...