In the southeast corner of New Mexico, the United States is burying decades of nuclear waste. The storage site, and the earth above it, will remain lethal for millennia...perhaps as much as 300,000 years! How can we warn people that far...

Humans have known about the toxicity of death cap mushrooms for millennia. Yet they continue to pose a significant threat to unsuspecting foragers and mushroom hunters throughout the world. Today, death caps are responsible for more than...

Why You Should Care About Nukes

So, what's the difference between 'weather' and 'severe weather'? Is it just how hard the wind is blowing? Is it just thunder and lighting? Well, it can be some or all of those things. In this episode of Crash Course Kids, Sabrina talks...

This video is about the orbital mechanics of why it's so hard to crash into the sun - the energy it takes to get there is astoundingly high, compared with leaving the solar system.

Have you ever seen "calcium disodium EDTA" on an ingredients label and wondered what it's doing in your food? As it turns out, ethylenediamene triacetate is an important preservative that's helping to preserve your food. It's totally...

Advocates of legal immigration say foreign-born workers have long been a key factor in U.S. economic growth. But are they sharing in the benefits of their contributions? For more than a year, ProPublica has been investigating the harsh...

More than a decade after the Fukushima Daiichi nuclear power plant disaster, its operators are dumping once-contaminated water into the Pacific Ocean. Is that OK?<br/>

Being infected with a parasite is bad, right? So why are wolves in Yellowstone National Park infected with Toxoplasma gondii some of the most successful individuals<br/>

Sometimes, major injury causes blood loss that results in improper clotting, or coagulopathy. Some researchers think a compound used in perfume to create jasmine fragrances could help save these patients.

All plants get energy from the sun, but the giant hogweed gets another, dangerous superpower from the sun's light: the ability to burn skin with its sap.

Time Magazine has called it "the most horrible drug in the world," and last month, it hit the US. Because seriously, why would you take a drug that rots your flesh, bones, and brain?! Hank Green discusses the science behind the street...

Jessi and Augusto from Animal Wonders talk with Hank about how they got their really cool jobs. Plus they introduce Hank to a Mali uromastyx!

Dinosaurs were huge—it's common knowledge. So why aren't modern mammals anywhere near that size? In this episode of SciShow, Hank gives a quick run-down of the reasons scientists think the land mammals of today are nowhere near the size...

From poking their own eyes, to drinking a patient's vomit, some extremely passionate scientists have done pretty outrageous things to themselves in the name of science.

The ocean is the largest ecosystem on Earth, but it's still mostly unexplored. This is partially due to the challenges of ocean exploration, like bone-crushing pressure and the need to bring your own air. But here are five ways that...

Venomous snakes produce some of the world’s deadliest substances, so they have to be pretty careful about how they use it. But what happens if they accidentally inject themselves with their own harmful cocktail?

Some plants and flowers can be beautiful, but also extremely deadly. Join SciShow's Michael Aranda for a look into the top 10 deadliest plants, and find out just how toxic they are to humans and animals. ----------

A lot of robots are developed to physically replicate our actions and behavior, like a bipedal, balanced walk, a large range of motion, and the ability to perceive and interact with the environment. But, maybe not to your surprise,...

You probably know that Australia is famous for giant snakes and spooky spiders... but oh... there's SO much more. Join Hank Green as he shows you seven truly terrifying Australian inhabitants that you might not have heard of—and some are...

If you ever get nervous about missile attacks, they're actually a lot harder to make than you might think. To hopefully put your mind more at ease, Hank is here to talk about the work that goes into designing and building ICBMs in this...

If you stick your finger in a socket, you’re in for a bad time, so how can birds perch on power lines without getting zapped? Hosted by: Olivia Gordon

As conservative lawmakers push anti-LGBTQ+ legislation, new data from The Trevor Project underscores the mental toll on LGBTQ+ youth. We hear from young people around the country about the challenges they face and their hopes, and John...

Michael Gerson is a political columnist for the Washington Post and a regular contributor to the NewsHour. But this past weekend, he delivered a sermon at the Washington National Cathedral that focused on a more personal topic: his...