R136a1 is the most massive star that astronomers have ever discovered. It's so massive you might think the laws of physics wouldn't allow it. But it turns out that its current mass estimate is actually so low that it threatens our...

SciShow takes you inside a limnic eruption, a natural disaster that’s as deadly as it is rare.

Where did astronomers finally conclude that the 'Weird! Signal' was coming from? What has Elon Musk been up to with SpaceX and the Falcon Heavy rocket?

What exactly is a ‘Zombie Star,’ and how does it compare to other stars and supernovas? We’ve also learned more about how the haze over Pluto plays a role in its temperature.

The record for the fastest thing ever created by humans is a tie between the Helios 2 probe and a manhole cover.

In the mid-ninth century, Chinese chemists, hard at work on an immortality potion, instead invented gunpowder. They soon found that this highly inflammable powder was far from an elixir of life -- they put it to use in bombs against...

Pipes can freeze in the winter, but you never hear about fire hydrants freezing. What makes them safe from the cold temperatures in winter time?

Hank introduces you to the latest element to be created -- and explains why we make them in the first place -- plus the science of exploding whales. It's a thing, people.

SciShow takes you inside a limnic eruption, a natural disaster that's as deadly as it is rare.

The destruction of war doesn't stop when the fighting is over. Photographer and TED Fellow Laura Boushnak shares a powerful photo essay about the survivors of cluster bombs, people who encountered these deadly submunitions years after...

Hawaii's Kilauea volcano suddenly erupted last week. It's happened before, so why are eruptions so hard for scientists to predict?

In this episode we discuss Schrodinger's cat, quantum entanglement, and our perception of reality.

Just now, somewhere in the universe, a star exploded. In fact, a supernova occurs every second or so in the observable universe. Yet, we’ve never actually been able to watch a supernova in its first violent moments. Is early detection...

Mathematician Kelsey Houston-Edwards explains exactly what singularities are and how they exist right under our noses.

Hollywood can be pretty negligent about physics and astronomy, even in really good movies, but there are a few specific misconceptions that pop up again and again.

Massive stars fuse heavier elements in their cores than lower mass stars. This leads to the creation of heavier elements up to iron. Iron robs critical energy from the core, causing it to collapse. The shock wave, together with a huge...

A super bright flash in the sky might be the birth of a supernova remnant and it turns out there's more than one way to build a binary star system.

You’ve probably seen the videos on YouTube turning grapes into fireballs in the microwave. Well, there’s a pretty cool scientific explanation for why a grape is perfect for making plasma.

The constellation of Orion has one shoulder marked by a bright red star called Betelgeuse, but over the last year it's dimmed enough to notice with the naked eye! and mission scientists are shedding some light on how Arrokoth and other...

We have a garbage problem. Wouldn't it make sense to throw that trash into the nearest volcano?

Stars blowing up is a surprisingly common occurrence, but who would have thought to search the bottom of the ocean if you were trying to study them?!

This video features a humorous exchange between two individuals discussing the difference between the literal and figurative use of language. One person complains of having a headache so severe that their head feels like it's going to...

Howcast - Check out this Portal 2 walkthrough and beat Chapter 7 - Part 5: Portal Gel Room 3 of 3 with this online demo.

Howcast - Learn how to develop your biceps with dummbell curls from expert Skip La Cour in this Howcast bodybuilding video.