You’re in the deepest part of our oceans. The Mariana Trench. Suddenly, your sub experiences an earthquake. And when you look outside, you see the terrifying...
What if Jupiter’s 79 moons weren’t gravitationally bound to Jupiter? What if they became rogue objects orbiting on their own paths around the Sun? Would they still be...
Imagine if all the Earth’s oxygen disappeared. Not forever, just for, say, an hour? Could you hold your breath that long? What would happen to the atmosphere? And...
You’re lost in the jungle without any other humans around. You need to find a new family. Or your new family could find you. What would it be like to be raised by...
Hang on because we’re about to screech to a halt. That’s right. The Earth is going to stop spinning for five seconds. How much damage would this sudden stoppage cause...
The time for talk is over. Now the biggest countries on Earth are fighting for global supremacy. What would happen if the United States started World War III? Who would...
Body-crushing pressure. Toxic atmospheres. Unbearable temperatures. That’s what would be in store if you visited other planets in our Solar System. But what other...
Before we start this episode, I gotta warn you. We’re going to talk about starvation and how it can harm your body. Like all What Ifs this is a thought experiment...
The Middle Ages, a time when you were more likely to die on the toilet than take a bath. And now you’re going there with an educational mission. It’s up to...
Whether you’re at the gym, at home with a broken air conditioner or having a bite of some spicy food, you could be sweating right now. Wouldn’t it be nice to leave that...
For dinner tonight, you are being treated to the tasting menu of a lifetime. The periodic table of elements. Which elements would you be able to eat? Which ones would...
Do you remember reading the Berenstein Bears books when you were a kid? Or perhaps you watched that 90s genie movie starring the actor Sinbad? Well, I hate to break it...
Settling on the Moon or Mars may be all the buzz. But how about we all move to an icy dwarf planet in the middle of the Solar System? To Ceres. What would make this a...
This is the Mariana Trench, the deepest place on Earth. It stretches 11km (7 mi) down below sea level. But what if we made it even deeper? Get a giant drill because...
Your wildest dreams have come true. You’re a superhero. Rocks have replaced all of your skin, and you look like the Thing. Well, I didn’t say you were going...
The jury found you guilty. The judge sentenced you to one of the most dangerous prisons on Earth. And if you’re not careful, you could spend the rest of your life...
Imagine looking up into the night sky and seeing not one but 79 different moons beaming back at you. What would this new night sky look like? How would this affect the...
It can swallow entire gazelles, turtles, and even lions. This is the Nile crocodile, the most dangerous crocodile in the world. It normally preys on after animals found...
One second you are out cold. The next, you’re on the operating table. In the middle of heart surgery. Welcome to your most terrifying nightmare. What happens when...
Volcanic eruptions can be devastating. So what if we took extreme actions to prevent them? How could we drill into a volcano? What would be the benefits of doing this...
