There was a medical incident on the ISS which required NASA to treat an astronaut from Earth. And astronomers have discovered what might be some of the universe’s earliest stars.

Conventional wisdom might have you believe that human beings only really start showing empathy after a few years of learning social norms and morals. However, some research suggests that this kind of compulsion to do good might be...

In the uS, most kids have a very long summer break, during which they forget an awful lot of what they learned during the school year. This "summer slump" affects kids from low-income neighborhoods most, setting them back almost three...

In which John Green teaches you about nonviolence and peace movements in the 20th century. What is nonviolence? What is a peace movement? Well. traditionally, humans often resort to violence when they come into conflict. In the 20th...

For more than a decade, Opportunity has been one of our best tools for understanding Mars, but after eight months of listening and hoping, it was officially time to put the rover to bed.

After his son was diagnosed with cerebral palsy, Billy Samuel Mwape realized that his project management skills might be put to use to support his child's special needs. In this inspiring, personal talk, he describes how project...

Did you know you can fall in love with anyone just by asking them 36 questions? Mandy Len Catron tried this experiment, it worked, and she wrote a viral article about it (that your mom probably sent you). But ... is that real love? Did...

Before they can walk or talk, infants start to do all sorts of cognitive feats that seem awfully smart for a baby.

Why does February only get 28 days when all the other months get 30 or 31? The answer is part superstition, part politics, and parts astronomy. Basically, it's the Romans' fault.

When disaster strikes, who's first on the scene? More and more, it’s a robot. In her lab, Robin Murphy builds robots that fly, tunnel, swim and crawl through disaster scenes, helping firefighters and rescue workers save more lives safely...

Imagine that you've been unemployed for months. Government benefit programs have helped you cover your expenses, but you're barely getting by. Finally, you receive a paycheck— but there's a catch. Your new job pays enough to disqualify...

You may have heard the rumor. Every seven years your body becomes a whole new person. But is there anything to this? Check out this SciShow episode to find out!

In 1478, Pope Sixtus IV issued a decree authorizing the Catholic monarchs, Ferdinand and Isabella, to root out heresy in the Spanish kingdoms. The inquisition quickly turned its attention to ridding the region of people who were not part...

Africa is like a sleeping giant, says journalist and satirist Adeola Fayehun at the beginning of this hilarious, incisive talk. "The truth is I am trying to wake up this giant. That's why I air the dirty laundry of those in charge."...

This week in SciShow Space News we bring you the latest on what to expect from NASA's New Horizons deep space mission and what asteroids to watch for in the coming years!

On October 4, 1957, the Soviet Union launched the satellite Sputnik and, with it, an international space race. The United States and the Soviet Union rushed to declare dominance of space for 18 years, until the two countries agreed to a...

Daniel Kish has been blind since he was 13 months old, but has learned to "see" using a form of echolocation. He clicks his tongue and sends out flashes of sound that bounce off surfaces in the environment and return to him, helping him...

60 years ago, in January 1958, the United States launched its first satellite, Explorer 1.

We think of pain as a symptom, but there are cases where the nervous system develops feedback loops and pain becomes a terrifying disease in itself. Starting with the story of a girl whose sprained wrist turned into a nightmare, Elliot...

Potatoes are amazing! You can make them into french fries, baked potatoes, hash browns, potato chips, and tons of other tasty foods! And best of all, they're super easy to grow! Join Jessi and Squeaks to learn how!

Learn how scientists are fighting cancer... with algae!

Former NFL quarterback Alex Smith almost died after a particularly rough tackle snapped his leg in 2018 -- yet he was back on the field just two years later. In this inspiring talk, he shares his hard-won insights on overcoming fear,...

Bears forgo many activities to conserve their energy in the winter when food is scarce, including eating, peeing, and pooping. There is one thing that they specifically DO do during the winter, though: give birth! But, giving birth...

David Lang is a maker who taught himself to become an amateur oceanographer -- or, he taught a robot to be one for him. In a charming talk Lang, a TED Fellow, shows how he and a network of ocean lovers teamed up to build open-sourced,...