In the spectacular large-scale projects he's famous for (such as "Waterfalls" in New York harbor), Olafur Eliasson creates art from a palette of space, distance, color and light. This idea-packed talk begins with an experiment in the...

It seems like birds would want to hide their eggs, but there are hundreds of species that lay blue to blue-green eggs. Thanks to some clever experiments, we’re finally starting to understand why birds might benefit from conspicuously...

In this explosive episode of SciShow Quiz Show, Hank Green and SciShow writer Dave Loos test their knowledge of diamonds, the environment, and the many reasons why humans are very strange creatures.

What is the best voting system? Voting seems relatively straightforward, yet four of the most widely used voting systems can produce four completely different winners.

Different dogs look incredibly different - but that doesn't mean they are necessarily more diverse.

Doesn't it seem like a lot of online news sites have moved beyond reporting the news to openly inciting your outrage (and your page views)? News analyst Sally Kohn suggests — don't engage with news that looks like it just wants to make...

It's your first day as Center Realm's official cartographer, and you've already got a big problem. Center Realm is home to three elder dragons: two ice, one fire, and they've lived in harmony for centuries. But scouts have sighted three...

Now you "sea" them, now you don't! Cuttlefish are more than the chameleons of the sea, these cephalopods take camouflage to a whole new level.

Have you ever wanted to make a painting but you've run out of paint? Learn how you can make your own watercolors with Jessi and Squeaks!

Artist Safwat Saleem grew up with a stutter -- but as an independent animator, he decided to do his own voiceovers to give life to his characters. When YouTube commenters started mocking his Pakistani accent, it crushed him, and his...

Reed Kroloff gives us a new lens for judging new architecture: is it modern, or is it romantic? Look for glorious images from two leading practices -- and a blistering critique of the 9/11 planning process.

You and nine other individuals have been captured by super-intelligent alien overlords. The aliens think humans look quite tasty, but their civilization forbids eating highly logical and cooperative beings. Unfortunately, they're not...

It's Jupiter's beauty mark - but do you know where the Great Red Spot came from, or how long it's been there, or how long it'll continue to exist? Well, neither do scientists, really.

Millennials are now the largest, most diverse adult population in the US -- but far too often, they're reduced to the worn-out stereotype of lazy, entitled avocado toast lovers, says author Reniqua Allen. In this revealing talk, she...

Khadija Gbla grew up caught between two definitions of what it means to be an “empowered woman.” While her Sierra Leonean mother thought that circumsizing her — and thus stifling her sexual urges — was the ultimate form of empowerment,...

Plants, animals, or minerals found in nature bear almost every color imaginable. There are two factors that influence what hues you see in the wild: physics and evolution. So, which colors are you least likely to see in the natural...

The leaves are falling from the trees and the air is getting chilly where Jessi and Squeaks live, which can only mean one thing: it's fall! And to celebrate the season, they've put together a bunch of videos about all the fun things you...

Do you know anyone with freckles? Maybe you have freckles yourself! Jessi has them, and she's been wondering what they are, where they come from, and why some people have them and some people don't!

A hostile artificial intelligence called NIM has taken over the world's computers. You're the only person skilled enough to shut it down, and you'll only have one chance. Can you survive and shut off the artificial intelligence? Dan...

For 13 years, the Cassini probe circled Saturn and sent back fascinating data about the seasons of Saturn as it moved through a 29 Earth year Saturnian year.

Some aquarium hobbyists will pay $10,000 or more for a single shrimp because of the rarity of their colors or patterns.

You may have satisfied your inner five-year-old by learning why the sky is blue, but where does the ocean's color come from?

Since ancient Greece, humans have controlled populations via reproduction, retaining some traits and removing others. But in the 19th century, a new scientific movement dedicated to this endeavor emerged: eugenics. Scientists believed...

Traditional lab tests for disease diagnosis can be too expensive and cumbersome for the regions most in need. George Whitesides' ingenious answer is a foolproof tool that can be manufactured at virtually zero cost.