The Five Stages of Grief show up in media everywhere from The Simpsons to Robot Chicken, but scientists have long been working on better ways to think about grief.

A true "Renaissance Man", inventor, artist & scholar Leonardo da Vinci was one of the most diversely talented individuals of all time. His "unquenchable curiosity" led him to make discoveries and inventions that were beyond his time, not...

There are still several fascinating mysteries of our universe unsolved by scientists even after decades and even centuries of research! Join Olivia Gordon for a new episode of SciShow and learn about these seven weird phenomena that...

The weak force has been causing trouble for a century, ruining everything physicists thought was true. But it might actually be responsible for your very existence.

The temperature drops and you're more likely to get a cold: Is this correlation or causation?

Tapping into the transformational power of costume, concept artist Machine Dazzle takes us on a maximalist journey through art, history and fashion. From a jaw-droppingly intricate '60s bouffant ensemble to a 24-hour show of extravagant...

Squeaks is so excited to learn all about ancient sea monsters, like the plesiosaurs and mosasaurs! We'll also take a look at a fish wearing armor and the biggest shark to ever live - Megalodon!

Medieval Europe. Where unbathed, sword-wielding knights ate rotten meat, thought the Earth was flat, defended chastity-belt wearing maidens, and tortured their foes with grisly gadgets. Except... this is more fiction than fact. So, where...

What if leadership at work wasn't for a select few, but rather shared among many? Management consultant Gitte Frederiksen gives us the recipe for "distributed leadership" -- dynamic, multidimensional networks of leaders that tap into...

We know capitalism exacerbates injustice and inequality worldwide. So how can we fix it? Professor and social entrepreneur Manish Bhardwaj thinks we need to integrate "moral clarity" -- which he defines as "doing the right thing because...

Paul Andersen (with the help of PatricJMT) explains why mathematics may be biology's next microscope.

How to think of 3x3 matrices as transforming 3d space

In which John Green talks about the methods of writing history by looking at some of the ways that history has been written about the rise of the West. But first he has to tell you what the West is. And then he has to explain the Rise of...

Lindsay Amer is the creator of "Queer Kid Stuff," an educational video series that breaks down complex ideas around gender and sexuality through songs and metaphors. By giving kids and their families a vocabulary to express themselves,...

Welcome to Crash Course Film Production, our 15 part series on how movies are (generally) made and who does what job and when... it's a lot to cover. Your host, Lily Gladstone, will be taking you through this series so let's get to know...

Scientists in the nineteenth century discovered a lot about life and matter. But exactly what kind of stuff is the human brain? That one was—and is—tricky.



The brain sciences—with experiments and therapies tied to biological...

The year was 1776. In Bavaria, new ideals of rationalism, religious freedom and universal human rights competed with the Catholic church's heavy influence over public affairs. Adam Weishaupt, a law professor frustrated with the Church's...

The SETI Institute's Jill Tarter makes her TED Prize wish: to accelerate our search for cosmic company. Using a growing array of radio telescopes, she and her team listen for patterns that may be a sign of intelligence elsewhere in the...

In which John Green teaches you about the European Renaissance. European learning changed the world in the 15th and 16th century, but was it a cultural revolution, or an evolution? We'd argue that any cultural shift that occurs over a...

Imagine you have a square-shaped room, and inside there is an assassin and a target. And suppose that any shot that the assassin takes can ricochet off the walls of the room, just like a ball on a billiard table. Is it possible to...

We're living in a golden era of innovation, says entrepreneur Ashwini Anburajan -- but venture capital hasn't evolved to keep up, and startups aren't getting the funding they need to grow. In this quick talk, she shares the story of how...

In which Hank and John Green teach you a Crash Course on the modern revolution, and the upside of the progress that humanity has made in the last 500 years or so. And while there are two sides to every history, and many of these changes...

The universe that we know, with its luminous stars and orbiting planets, is largely made up of elements we can't actually see -- like dark energy and dark matter -- and therefore don't fully understand. Theoretical physicist Chanda...

If you feel something inside you say, “I really don’t think you’re strong enough,” you don’t necessarily have to trust that little voice—it might not know you as well as you think it does.