Have you ever wondered if there is anyone (or anything) else out there in the universe? Well, you're not alone. But what would alien life look like? And what would their food chains and food webs look like? In this episode of Crash...

So, have you ever wondered why we have seasons? Or maybe where the sun goes when it's night time? *Hint: It doesn't actually go anywhere* In this episode of Crash Course Kids, Sabrina talks about the Earth's rotation and revolution and...

Small grains in the Murchison meteorite have been estimated to be 7 billion years old—much older than the Earth, and even the solar system.

Rocky bodies like moons, asteroids, and comets are chock full of resources, from water, to helium-3, to rare earth elements. But how can we access them? Some scientists have proposed using microbes to aid in the mining of certain metals.

Correction

07:11 We made a conversion error! The asteroid in this sentence should be 95,000 meters or 95 km. The conclusion (water would be deadly hot and sterilized) is cor

rect.

Let's face it: The Earth is going to get...

When humans are gone, nature will reclaim our cities and break down much of what we've built. But some of the things we've made will last much longer than others, and they're probably not the things you'd expect.

Jessi and Sam the Bat talk about the biggest volcano ever that we know of. And it's not on Earth. It's Olympus Mons, on the planet Mars!

Squeaks is back from his trip around the world! In this episode, he and Jessi discuss the final stop on his trip: Vatnajökull National Park in Iceland.

We’re almost certainly the first technological civilization on Earth. But what if we’re not? We are. Although how sure are we, really? The Silurian hypothesis, which asks whether pre-human industrial civilizations might have existed.

We spend a lot of time here on Eons looking backwards into deep time, visiting ancient chapters of our planet’s history. But this time, we’re taking a look towards the deep future. After all, the story is far from over.

We may have planet-shattering asteroids to thank for the origin of life on Earth.

Scientists have been trying to solve the mystery of why plate tectonics works the way it does for over a hundred years. And they might have just uncovered a key to cracking it.

Life’s been around on Earth for at least 3.7 billion years. But for most of that time, it was incredibly boring — just simple little cells squirming around in water. It only got interesting in the last few hundred million years. And that...

Despite what you may have heard or learned in school, the sun is NOT in fact the center of the solar system. And it won’t be until 2027… But this being a science channel, you might be thinking “What the heck is this guy talking about? Of...

Diamonds are cool, but they form really far below the Earth's crust, and the main way they get to the surface(ish) is through rock formations called kimberlites. And these kimberlites are really rare and really weird. So let's talk...

In the mid-2010s, researchers discovered something odd underneath Greenland - there was a giant hole under a glacier, and they had no idea what had caused it. More confusing still, other researchers were searching for the cause of a...

This October, the launch window opens for NASA's Europa Clipper mission. When it arrives in the Jovian system, this spacecraft will probe the icy moon...and its ocean buried kilometers beneath the surface...for the ingredients of life...

An asteroid nearly twice the size of the one that killed the dinosaurs left a record-setting crater in South Africa. If you look closely, you can still see it today, 2 billion years later. <b<br/>r/>

Hosted by: Jaida Elcock (She/her)

Astronomers have two main ways to calculate how fast the universe is expanding. Unfortunately, they don't agree with one another. The JWST was supposed to help solve this discrepancy, known as "The Hubble Tension" or "The Crisis in...

Support for this video provided by Gates Ventures.<b<br/>r/>

Hosted by: Reid Reimers (he/him)

Over the past three decades, astronomers have discovered thousands of planets beyond our solar system. But while some of them might be the right size and mass to be some kind of Earth 2.0, we don't know if any of them is truly...

From the Great Pyramid at Giza, to one-quarter of the Netherlands, to continent-spanning electrical grids, humans are great at making really BIG things.<b<br/>r/>

Hosted by: @NotesByNiba (she/her)

In 2020, students from the University of Texas proposed sending a fleet of rovers to the Moon that, for a price, would carve words and symbols into the surface for *you*, random human. And that got us thinking, how big would such a...

China's Zhangye Danxia National Geopark is home to strikingly beautiful rainbow mountains -- yes, what you're seeing is real! But the secret to this amazing sight might be something incredibly humble: dirt.



Hosted by: Stefan...