Are we alone in the Universe? With more than 100 billion galaxies in the observable universe and at least 500 billion planets in the Milky Way alone, don’t you...
It’s been over 200 million years since South America broke off Africa into its own continent. But now it’s behaving very strangely. It’s taking on water and going down...
Our solid core has given us life as we know it. But what if Earth was hollow?
Billions of years from now, the Sun will become a red giant. And then, it will slowly die. That’s right. It’s the end of the Solar System, and this is your survival...
Everybody farts. And it’s no secret that they’re smelly, gross, and embaressing at times. But what if, instead of trying to hide our flatulence, we all just...
Chaos overtakes the streets, and the news spreads like wildfire. Sea levels have suddenly risen 500 meters, and giant waves are headed your way. Where could you hide to...
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...
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...
You’d better mind your waste because it’s not piling up in landfills anymore. Today, we’re going to dump it all straight into the oceans. How much trash would that...
They can lift 5,000 times their body weight. They have armies in the thousands. And they outnumber us a million to one. But ants are tiny, right? Yeah, that’s not going...
Swipe down for full video story! Mosquitoes are the deadliest animals on Earth, responsible for nearly one million human deaths each year. They transmit diseases such as...
Hundreds of meters underground. Large enough to house tens to hundreds of thousands of people. And walls strong enough to withstand the force of a nuclear blast. These...
An ancient creature is lurking in the ocean. It’s double the size of a T.rex. Its gigantic jaws could crush a car. And now, it’s on the hunt for you...
See that strip of stars splashed across the night sky? That’s our home galaxy, the Milky Way. You can see it from Earth because we live on its very outskirts, far...
Within the vastness of the Universe, humanity is not that big of a deal. We’re not here because we’re meant to be here, we’re just… here. If...
A volcano is one of the most unforgiving natural phenomenons on Earth. If you were to fall into its magma-filled center, your body would quickly bubble up, and disappear...
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...
Deep beneath your feet is a subterranean melting pot. A fiery inferno ready to boil over at any moment. Anywhere or anytime. Imagine that today is the day the ground...
Ahh, spring has sprung. Robins are chirping. Flowers are blooming. Yikes, it’s getting a little windy out. Wait a minute. Do you hear that? Is it just me or does it look...
Do you get a little nervous before a flight? If you do, you’re not alone. Between 33% and 40% of people feel some form of anxiety when they board a plane. While a giant...
