Mountains can seem eternal, but they are constantly changing. They rise through geological forces, slowly erode, and eventually become part of the landscape around them...
Washington, D.C. is more than just the capital of the United States. It is the center of American political power, home to the White House, Congress, the Supreme Court...
You and your family decide to take a camping trip in the great outdoors. You’re relaxing in your tent, when suddenly, you smell smoke. You assume the kids are...
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...
Black holes are one of the most devastating objects in space, sucking up everything around them. But there’s another space phenomenon that’s just as...
When you’re partying on the streets of Pamplona, get ready for an intense nine day celebration. But offend this guest of honor, and you may be the one seeing red...
In the summer of 1981, the Hyatt Regency Hotel in Kansas City was one of the most exciting places in the city. Its massive lobby, elegant design, and famous suspended...
Reptiles have ruled the planet for hundreds of millions of years, and some of them still inspire the same fear they did in prehistoric times. From giant constrictor...
When people imagine life on other planets, they often picture creatures unlike anything found on Earth. Perhaps they have blue blood, multiple brains, shape shifting...
You’re wading in a pond in the Amazon Rainforest when something slimy brushes against your leg. Then you feel another one. And another. You look down to see that...
Do you find the dark unsettling? Have you ever watched the big game on your refrigerator? With all the conveniences of modern living available in your pocket, or at the...
Get your bone flute and gather around the fire. Today on What If, we’re taking you back to the time of woolly mammoths and saber-toothed cats. That’s right...
A tornado can turn an ordinary afternoon into a terrifying emergency within minutes. Powerful rotating winds can tear roofs apart, overturn vehicles, snap trees, and...
This is our Universe, an ever-expanding network of stars and galaxies. And this is your brain. Don’t they look eerily similar to one another? Why are they so alike...
Imagine walking into a classroom where there is no teacher standing at the front of the room. Instead, every student is guided by an artificial intelligence system that...
Hippos are among the most dangerous animals on Earth. They kill around 500 people every year across Africa, more than twice the number attributed to lions. Despite their...
Evolution does not have a conscience. It does not ask whether something should exist. It only asks whether it works. And sometimes, what works is horrifying. Over...
Imagine hiking through a forest when you notice a large cat watching you from the shadows. At first, it looks like a modern tiger. Then it steps into the light...
The next time you see that adorable hummingbird at your feeder, remember one thing. It might take your life. Because in this world, every bird works for the government...
The world has ended. The sky has fallen. Doomsday has come and gone. So now what? Let’s start rebuilding civilization, of course. How would you begin to come back from...
