An asteroid races towards Earth. In 6 months, the world as we know it will be obliterated. What do you do? Is there time to evacuate? What would it take? And where would...
Imagine your entire neighborhood under the ever-watchful gaze of a swarm of silent drones. Creepy, right? Now, all conspiracies aside, more and more drones are fighting...
All over the world, people are treating bodies of water like they are giant garbage dumps. And experts say that continuing these practices will result in catastrophic...
It’s about to get really hot down on Earth. Because all our oceans suddenly started to boil, sending steam into the atmosphere at an alarming rate. Why would all...
Welcome to your new landfill: a giant ball of burning gas that we call the Sun. With surface temperatures of 5500°C (9,940°F), it could obliterate any type of trash we...
You just fell into a pool with this thing. What is this? How would falling in here affect your health? And could you actually survive this? This is a spent nuclear fuel...
Wait a minute, Neanderthals are extinct? Before you laugh, check yourself. Neanderthal DNA is 99.7% identical to our own, and researchers claim that some humans might be...
Elon Musk says he wants to send one million people to Mars by the year 2050. The SpaceX CEO has become famous for making huge promises about colonizing the red planet...
How much water would you need to extinguish the Sun? How would we deliver such an enormous amount of water anyway? Would all that water even make it to the star...
A massive asteroid just hit Earth, right in the middle of the Atlantic Ocean. Thanks to NASA’s new infrared telescope, we were able to detect it and prepare for the...
Over the past century, astronomers have speculated about the existence of a mysterious 9th planet lurking in the outer reaches of our solar system. Although we’ve...
On average, over 8000 people die each year in the U.S. because they can’t get an organ transplant. What if we could actually rebuild our failing organs? That...
Don’t be fooled by these gentle waves. These still waters hide a 20 million year death match between two prehistoric monsters. Grab some popcorn and a snorkel. You...
Imagine for a moment that Earth suddenly shrank to the size of the Moon, while the Moon expanded to the size of Earth. How would life on our planet change? Could humans...
Today on What If, we’re going to build the highest bridge on planet Earth. Welcome to the Qinghai-Tibet Plateau, the “Roof of the World.”It’s home to the world’s...
If you’re wondering where to take your first post-pandemic trip, here’s a place you don’t want to miss. Lake Baikal. This lake is unique. And its...
Polyhedrons come in all shapes and sizes. Anything that has multiple faces joined at their edges can be a polyhedron. Picture Earth as a six-sided cube. Or as a...
It’s time to live your ultimate supervillain fantasy. Today, you’re going to unleash your masterpiece of mass destruction. An antimatter bomb. How would you build it...
Imagine striking a match and having everything around you catch on fire, even if you were standing in a wet forest. And while that’s happening, imagine being...
Forget everything you know about the United States of America. It is not united anymore, but divided into several independent nations. No, this isn’t the result of...
