In 2011, the US Armed Forces still had a ban on women in combat -- but in that year, a Special Operations team of women was sent to Afghanistan to serve on the front lines, to build rapport with locals and try to help bring an end to the...

Food insecurity, or the lack of access to enough nutritious food, is a complex problem. In the 21st century, even with all of our advances in technology, access to food is still uneven. Today we're going to look at the diffusion of food...

This has been another really good year for exploring the universe. This is our annual superlatives episode, so let’s take a look at the some of the coolest breakthroughs of 2019.

Why are mosquito bites so itchy? Stop scratching while Jessi explains!

In a lively show, mathemagician Arthur Benjamin races a team of calculators to figure out 3-digit squares, solves another massive mental equation and guesses a few birthdays. How does he do it? He’ll tell you.

Janet Echelman found her true voice as an artist when her paints went missing -- which forced her to look to an unorthodox new art material. Now she makes billowing, flowing, building-sized sculpture with a surprisingly geeky edge. A...

Building a skyscraper? Forget about steel and concrete, says architect Michael Green, and build it out of … wood. As he details in this intriguing talk, it's not only possible to build safe wooden structures up to 30 stories tall (and,...

One bag of apples, one apple, one slice of apple -- which of these is one unit? Explore the basic unit of math (explained by a trip to the grocery store!) and discover the many meanings of one.

The Dawn spacecraft has been exploring the two largest objects in the asteroid belt since 2007, and here's what we've learned so far!

Sounds that animals make can be really different, and it turns out that there's a reason why some species communicate with certain sounds.

Today we're going to talk about game shows! Game shows have a long history going all the way back to the 1920s on the radio and then proliferating across media to the massive pop culture icons they are today. And they're different from...

Are These Butterflies The Same?

Scott Fraser studies how humans remember crimes -- and bear witness to them. In this powerful talk, which focuses on a deadly shooting at sunset, he suggests that even close-up eyewitnesses to a crime can create "memories" they could not...

Hank gets straight to the facts in the unfortunate case of Aimee Copeland, who was injured during a zip-lining accident and subsequently contracted a rare disease.

TED Fellow Lucy McRae is a body architect -- she imagines ways to merge biology and technology in our own bodies. In this visually stunning talk, she shows her work, from clothes that recreate the body's insides for a music video with...

What is a vector? Is it an arrow in space? A list of numbers?

When outbreaks happen, we need to be able to predict the course they’ll take in the future, but of course we can’t run experiments on real people to figure that out. Thankfully we can simulate outbreaks and use models to find out how...

Would you pay two percent more for the carbon-neutral version of the products you buy and use every day? In this innovative talk, climate pathfinder Jens Burchardt walks us through the costs and considerations of producing...

There's something out there SO massive that it's pulling on every object within hundreds of millions of light years. But we can't see it! So what DO we know? Today on SciShow Space, Reid Reimers tells us more about the Great Attractor.

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!

There are 168 hours in each week. How do we find time for what matters most? Time management expert Laura Vanderkam studies how busy people spend their lives, and she's discovered that many of us drastically overestimate our commitments...

There is a group of animals with more species than any other group, but Earth has such an astonishing variety of life that figuring out which group dominates is tricky.

Hank gives you a sneak peek into SciShow - a new YouTube program that just might change the way you look at your planet, your universe, and even yourself.

If you’re a wild animal, you might spend your days actively trying to NOT become another animal's dinner. And some animals have come up with some pretty bizarre strategies to stay safe.