Squeaks is back from his trip around the world! In this episode, he and Jessi discuss the second stop on his trip: Fiordlands National Park (aka Te Rua-o-te-moko) in New Zealand (aka Aotearoa)<br/>

Jessi and Sam the Bat learn about every kind of volcano. Some erupt suddenly and some erupt slowly. Some are tall, some aren't big mountains at all, and some stopped erupting a long time ago. But they're all volcanoes!

In this video Paul Andersen shows you how to construct explanations with evidence in a mini-lesson on Observational Explanations. Two examples are included in the video and two additional examples are included in the linked thinking...

Exhausted from carrying water up a hill to keep her small farm in Kenya thriving, Josephine Waweru received an unexpected call that offered a nearly unbelievable solution. She shares how one simple device allowed her crops (and her...

The Moon has been one of the most important theoretical stepping stones to our understanding of the universe. We’ve long understood that it could also be our literal stepping stone: humanity’s first destination beyond our atmosphere.

While the eruptions of the volcanoes along the Mid-Atlantic Ridge usually don't trouble us, their birth was once responsible for ripping a supercontinent apart and creating the Atlantic Ocean that we know today.

Why do the same, self-repeating patterns appear in trees, rivers, lightning, and even our bodies? Is there some essential, hidden rule of nature that makes these intricate designs appear all over the place? Let’s talk about fractals.

Have you ever looked at a cloud and seen a face? Or the front of a car and seen a face? Or an electrical outlet and seen a face? You definitely have. We all see faces everywhere we look thanks to a fun quirk of the human brain called...

How did sauropods, uniquely large land animals, actually live, with their anatomy and physiology pushed to such extremes? Well, their unprecedented gigantism came with some equally massive costs…

The Inca Empire used bundles of knotted string called khipu to store and convey information. But how do you read a bunch of strings? And was this a unique form of writing... or knot?<b<br/>r/>

Hosted by: Stefan Chin

On their opening weekend in March 2025, the New York Yankees hit 15 home runs. And the so-called torpedo bats they used to do it have real science behind them, thanks to MIT physicist Aaron Leanhardt. But how good are they really? In...

China's Red Beach is a stunningly beautiful tourist destination. But the plants that make Red Beach red are hiding a secret -- one that could save other wetlands, if we can save this one first. <br<br/>/>

Hosted by: Stefan Chin (he/him)

There's a tree species that used to be all over the world. And now, they can only be found in a secret valley in the mountains in Australia. This is the story of the rise and fall of the Wollemi Pine, including how some new tech might...

China's Zhangye Danxia National Geopark is home to strikingly beautiful rainbow mountains -- yes, what you're seeing is real! But the secret to this amazing sight might be something incredibly humble: dirt.



Hosted by: Stefan...

In the 1930s, a skeleton was discovered at the bottom of a well at the site of a medieval Norwegian fortress, severely injured and buried under large rocks. And to uncover his story, we need a combination of carbon dating, genetics,...

The world is full of microbes and viruses that can get us sick, but we’ve got an Avengers-style defense system ready to take them on. In this episode of Crash Course Biology, we’ll learn about an animal’s immune system, from their skin...

How does the information from mRNA turn into a protein? It all comes down to translation, where nucleotides are translated into a chain of amino acids. In this episode of Crash Course Biology, we’ll cover codon-reading ribosomes, tRNA...

What’s the life of a cell like? In this episode of Crash Course Biology, we’ll follow a cell’s life cycle, from its beginning as a shiny new cell all the way to division via mitosis. We’ll learn how our cells control this process, and...

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...

Ending a marriage doesn’t have to mean ending a family, says communication expert Allison O'Brien, who navigated her own divorce without lawyers or mediators. She introduces a framework for ensuring a divorce remains peaceful, supports...

Why are we using tech from 100 years ago to deliver the world's electricity? Materials scientist Jason Huang shows how we could massively upgrade the global power grid by replacing the wires in existing transmission lines with new,...

Where do you draw the line between work and life? Writer Simone Stolzoff explores the problem with defining yourself by your job — and shows what it takes to reclaim your time and sense of meaning beyond the office.

Two species of Demodex mites specifically inhabit human follicles. And not just some people’s— nearly everyone is thought to host mites. One person’s face might harbor hundreds or even thousands of individual mites. On any given day,...

Actor and writer Natasha Rothwell takes the stage for “On the Spot,” TED’s rapid-fire Q&A format. Answering a stream of unexpected questions, she dishes on everything from creativity and representation in TV to love, the first “pinch me”...