Supersonic jets like the Concorde face concerns over safety, high carbon output, and cost. They also make loud sonic booms so loud that only transoceanic flights are legal. Now one NASA program is trying to make a quiet supersonic plane...

Everyone makes mistakes, but misidentifying a species more than 100 times? It happened. In this List Show, we tell the tale of the periwinkle snail and other creatures scientists confused for someone else. <br/>

For decades, researchers thought they had a solid idea about the earliest booms in animal life. But new research might have turned off the gas on all these ideas, flipping our understanding of the Avalon explosion and the Cambrian...

If there’s one thing cooler than a black hole it’s a rotating black hole. Why? Because we can use them as futuristic power generators, galactic-scale bombs, and portals to other universes.
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Black holes are self-sustaining...

There’s a deep connection between gravity and time - gravitational fields seem to slow the pace of time in what we call gravitational time dilation. And today we’ll explore the origin of this effect. And ultimately, we’ll use what we...

It’s fair to say that black holes may be the scariest objects in the universe. Happily for us, the nearest is probably many light-years away. Unless of course, Planck relics are a thing - in which case they might be literally everywhere.

“A moving arrow is at rest.” This is obviously a nonsensical contradiction. But Zeno, a Greek philosopher famous for his metaphysical trolling, devised a paradox whose conclusion is just this. Here’s how it goes: if you look at an...

If we ever want to simulate a universe, we should probably learn to simulate even a single atomic nucleus. But it’s taken some of the most incredible ingenuity of the past half-century to figure out how that out. All so that today I can...

What do we do to protect ourselves from extinction level events? And what if some of those events are unavoidable? Can we survive adrift in space? Find out in this episode of Space Time.

How do you see the unseeable - how do you explore the inescapable? Our cleverest astronomers have figured out ways to catch light that skims the very edge of black holes. Let’s find out what they learned.
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A few weeks ago a...

As revolutionary as teeth were, they would go on to disappear in some groups of vertebrates. But why?

Ever feel like you aren't totally yourself? Well, maybe you aren't. In this video, we explore the idea of human chimeras. In mythology, the "Chimaera" was a beast made from different animals combined into one. But in biology, a chimera...

How is AI changing the nature of human imagination and creativity? Through a mind-bending tour of new techniques he's been tinkering with, creative technologist Bilawal Sidhu shows how anyone can use AI-powered tools -- like 3D scans...

What do a platypus, a pufferfish, and a seahorse have in common? Why, they all managed to evolve themselves out of having a working stomach! The reasons why might vary, as well as how they manage to live their lives without them, but...

Have you ever noticed that the bubbles in your glass of Champagne are just.... fancier than other sparkling drinks? They form those lovely little columns of bubbles in a way that nothing else does - and it turns out there's some neat...

Chances are, the worst thing that's happened to you because of a sneeze is a snot rocket. But for these people, sneezing caused anything from damaged ears to a broken neck! But in one case, a sneezing fit saved one woman from needing...

How do you count things you don't know about?

A simple mis-folding in a certain brain protein causes a disease for which we have no cure.

It's the year 2018, and we now know that flies like to ejaculate. But how does this tie into our understanding of addiction?

Big-brained scientists have found the mechanism that may have allowed their brains (and all humans') to get so big.

Oxygen is crucial for life as we know it, but before it could build up in our atmosphere, earth had to slow down.

Hank discusses some new research that studied what makes us unhappy with ourselves and with other people, focusing on homophobia and consumerism.

From A positive to O negative, everyone's born with a blood type, and they're stuck with that blood type for their whole lives... or are they?

A lot of our videos include the disclaimer "Mice aren't people." But why do we keep saying this, and if rodent studies aren't effective, why do we keep using them?