Black holes are a wondrous force of the universe! Hank explains how we found a supermassive rogue black hole & how DNA behaves in space!

Today's wildfires burn, on average, twice the amount of land they did in 1970. The reason? We've been working too hard to put them out. Want to learn more about the topic in this week's video? Here's a keyword/phrase to get your googling...

Finding safe, effective cancer treatments is tough, but in the last couple of weeks, we've taken two major steps toward a future where every type of cancer has a cure.

SciShow explains how smells can bring back early memories -- even memories that your brain didn't know you had.

In a moving talk, journalist Johann Hari shares fresh insights on the causes of depression and anxiety from experts around the world -- as well as some exciting emerging solutions. "If you're depressed or anxious, you're not weak and...

Hank brings you news from around the universe, including what you can't blame on global warming, why being unfaithful is hazardous to your health, and how to watch a particularly awesome spectacle coming to a sky near you.

Two TED favorites, Jill Sobule and Julia Sweeney, team up for a delightful set that mixes witty songwriting with a little bit of social commentary.

Humanity now has incredible power to shape nature and the Earth: the power to destroy and the power to repair, says sustainability champion and UNDP Administrator Achim Steiner. In this action-oriented talk, Steiner shows how this power...

A marathoner needs a lot of energy to make their long distance treks, and this is no different for migratory birds. But how are these marathon flyers getting that energy from the mud they’re slurping off of beaches along the way?

How do you navigate life's growing number of transitions with meaning, purpose and skill? Writer Bruce Feiler offers a powerful way to handle uncertain, painful and confusing times -- or "lifequakes", as he calls them. Learn how to equip...

We often find ourselves stuck in narrow social circles with similar people. What habits confine us, and how can we break them? Organizational psychologist Tanya Menon considers how we can be more intentional about expanding our social...

This video is chapter 8 in my series on special relativity, and it presents a hands-on explanation of the resolution to the Twins Paradox using the mechanical minkowski diagram, aka mechanical Lorentz transformation, aka spacetime...

Author George Dyson spins the story of Project Orion, a massive, nuclear-powered spacecraft that could have taken us to Saturn in five years. His insider’s perspective and a secret cache of documents bring an Atomic Age dream to life.

What can a young woman with an idea, an Internet connection and a bit of creativity achieve? That's all Siyanda Mohutsiwa needed to unite young African voices in a new way. Hear how Mohutsiwa and other young people across the continent...

The next big shift is now, and it's not what you think: Facebook is the new Windows; Google must be sacrificed. Tech investor Roger McNamee presents 6 bold ways to prepare for the next internet.

After he swam the North Pole, Lewis Pugh vowed never to take another cold-water dip. Then he heard of Lake Imja in the Himalayas, created by recent glacial melting, and Lake Pumori, a body of water at an altitude of 5300 m on Everest --...

Princess Savitri was benevolent, brilliant, and bright. Her grace was known throughout the land, and many princes and merchants flocked to her family's palace to seek her hand in marriage. But upon witnessing her blinding splendor in...

Today we're talking about the blackest material ever created!

Today Emily Graslie of The Brain Scoop gives us the news about a couple of near- misses for our planet and an update on where astronomers think habitable life might be found in other star systems.

There have been a lot of scientific discoveries around COVID, but other science stories did happen in 2020 — including amazing discoveries about everything from dinosaurs to parasites.

We here at SciShow like to start things off with a "Boom" for yet another season! Hank talks about the mystery behind the "Space Roar" and why it is we can't really hear it.

What can an equation tell us about whether or not we're alone in the universe?

It's leap year time... so what are years, anyway? And what do they have to do with the supermassive black hole in the core of the milky way?

What's the key to using alternative energy, like solar and wind? Storage -- so we can have power on tap even when the sun's not out and the wind's not blowing. In this accessible, inspiring talk, Donald Sadoway takes to the blackboard to...