Family planning. It sounds sensible, but it’s extremely controversial. At least, in some countries. What if it wasn’t? What if the world recognized a...
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...
About 50,000 years ago, we shared this planet with different hominids called the Neanderthals. Their species wasn’t human, but they weren’t far from it...
On the morning of September 11th, 2001, tragedy struck when two hijacked airplanes crashed into the World Trade Center towers in New York City. After that, everything...
Imagine having the ability to live forever, travel anywhere in the universe, and harness enough power to create wormholes. Well, if you’re part of the ultra...
Swipe down for full video story! The construction of the pyramids of Giza required immense labor and coordination. For those involved, daily work was physically...
The Amazon rainforest stretches for millions of kilometers, hiding ancient tribes, animals and maybe something else. What if under this mysterious canopy lies an...
The sky appears darker. The temperature is starting to drop. Our rivers are freezing, crops are covered in snow! People could go hungry. Is it just me, or is the Sun...
If Earth had rings like Saturn our sunsets would be an incredible spectacle. It isn't farfetched as the Earth did have rings a very long time ago, the result of a...
It’s invisible, deadly and sucking up every bit of matter in its path. The most massive black hole in the known Universe is headed right toward Earth. What would you see...
Io. One of Jupiter’s four largest moons, it’s a world that seems ripped straight from a science fiction nightmare. Its surface is a chaotic, constantly shifting...
It’s a small world after all, because today, we’re shrinking Earth to the size of Pluto. But if our planet was this tiny, how would it alter the atmosphere...
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...
Take a deep breath. We take 23,000 breaths a day; trying to get oxygen to our brain and cells. Oxygen is essential to our survival. But it’s a only small...
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...
410 kilometers (254 miles) above the Earth. That’s where the International Space Station floats. What if you happened to be all the way up here but suddenly fell...
Scroll down to watch our video. Unless you’re an astronaut, you probably don’t spend a lot of time thinking about gravity. We all take gravity for granted...
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...
Our Universe was born billions of years ago. And since that time, it’s given birth to millions of galaxies, our Solar System, and who knows what else. Our Universe...
Today on What If, we’re taking Jupiter’s deadly gases and unleashing them on Earth. Where could you be safe from these toxic winds? How would you breathe...
